DUKE REALTY INVESTMENTS INC
424B2, 1996-08-12
REAL ESTATE INVESTMENT TRUSTS
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<PAGE>
                             SUBJECT TO COMPLETION
             PRELIMINARY PROSPECTUS SUPPLEMENT DATED AUGUST 9, 1996
 
PROSPECTUS SUPPLEMENT
(TO PROSPECTUS DATED SEPTEMBER 7, 1995)
                                3,000,000 SHARES
 
                                     [LOGO]
 
                         DUKE REALTY INVESTMENTS, INC.
                               DEPOSITARY SHARES
         EACH REPRESENTING 1/10 OF A  % SERIES A CUMULATIVE REDEEMABLE
                  PREFERRED SHARE (PAR VALUE $0.01 PER SHARE)
       (LIQUIDATION PREFERENCE EQUIVALENT TO $25.00 PER DEPOSITARY SHARE)
                               -----------------
 
    Each  of the 3,000,000  Depositary Shares (the  "Depositary Shares") offered
hereby (the "Offering") represents a 1/10 fractional interest in a   % Series  A
Cumulative  Redeemable Preferred Share, par value $0.01 per share (collectively,
the "Series  A  Preferred  Shares"),  of  Duke  Realty  Investments,  Inc.  (the
"Company"),   deposited  with  American  Stock  Transfer  &  Trust  Company,  as
Depositary, and entitles the holder  to all proportional rights and  preferences
of the Series A Preferred Shares (including distribution, voting, redemption and
liquidation  rights and preferences). The liquidation  preference of each of the
Series A  Preferred  Shares is  $250.00  (equivalent to  $25.00  per  Depositary
Share). See "Description of Series A Preferred Shares and Depositary Shares."
 
    Distributions on the Series A Preferred Shares represented by the Depositary
Shares  offered hereby will  be cumulative from  the date of  original issue and
will be payable quarterly on or about the last day of February, May, August  and
November  of each year,  commencing on the business  day succeeding November 30,
1996, at the rate of   % of the liquidation preference per annum (equivalent  to
$       per annum per  Depositary Share). See "Description of Series A Preferred
Shares and Depositary Shares -- Distributions."
 
    The Series A Preferred  Shares and the  Depositary Shares representing  such
Series  A Preferred Shares are  not redeemable prior to  August 31, 2001. On and
after August 31,  2001, the Series  A Preferred  Shares may be  redeemed at  the
option  of the Company in whole or in part, at a redemption price of $250.00 per
share (equivalent  to $25.00  per  Depositary Share),  plus accrued  and  unpaid
distributions,  if any, thereon. The redemption  price of the Series A Preferred
Shares (other  than  any  portion  thereof  consisting  of  accrued  and  unpaid
distributions)  may only be paid from the  sale proceeds of other capital shares
of the Company, which may include  other classes or series of preferred  shares,
and  from no other source. The Series A Preferred Shares have no stated maturity
and will not be subject to  any sinking fund or mandatory redemption  provisions
and  will not be convertible into any  other securities of the Company. In order
to maintain its  qualification as  a real  estate investment  trust for  federal
income   tax  purposes,   the  Company's   Amended  and   Restated  Articles  of
Incorporation impose  limitations on  the  number of  shares of  capital  stock,
including  Series A Preferred Shares, that may  be owned by any single person or
affiliated group. See "Description of  Series A Preferred Shares and  Depositary
Shares -- Restrictions on Ownership."
 
    Application  has been  made to  list the Depositary  Shares on  the New York
Stock Exchange  ("NYSE").  If  such  application is  approved,  trading  of  the
Depositary  Shares on the  NYSE is expected  to commence within  a 30-day period
after the  date  of  initial  delivery  of  the  Depositary  Shares.  While  the
Representatives  have advised the Company  that they intend to  make a market in
the Depositary Shares  prior to commencement  of trading on  the NYSE, they  are
under no obligation to do so and no assurance can be given that a market for the
Depositary   Shares   will  exist   prior  to   commencement  of   trading.  See
"Underwriting."
                            ------------------------
 
THESE SECURITIES HAVE  NOT BEEN APPROVED  OR DISAPPROVED BY  THE SECURITIES  AND
EXCHANGE  COMMISSION OR ANY STATE SECURITIES  COMMISSION NOR HAS THE SECURITIES
 AND EXCHANGE COMMISSION OR ANY  STATE SECURITIES COMMISSION PASSED UPON  THE
   ACCURACY OR ADEQUACY OF THIS PROSPECTUS SUPPLEMENT OR  THE PROSPECTUS TO
     WHICH  IT RELATES.  ANY REPRESENTATION TO  THE CONTRARY  IS A CRIMINAL
                                    OFFENSE.
                            ------------------------
 
THE ATTORNEY GENERAL OF THE STATE OF NEW YORK HAS NOT PASSED ON OR ENDORSED THE
                                   MERITS OF
         THIS OFFERING. ANY REPRESENTATION TO THE CONTRARY IS UNLAWFUL.
 
<TABLE>
<CAPTION>
                                                                 PRICE TO               UNDERWRITING              PROCEEDS TO
                                                                PUBLIC (1)              DISCOUNT (2)              COMPANY (3)
<S>                                                       <C>                      <C>                      <C>
Per Depositary Share....................................          $25.00                      $                        $
Total (4)...............................................        $75,000,000                   $                        $
<FN>
(1)  Plus accrued distributions, if any, from the date of original issue.
(2)  The Company  has  agreed  to indemnify  the  several  Underwriters  against
     certain  liabilities,  including liabilities  under  the Securities  Act of
     1933, as amended. See "Underwriting."
(3)  Before deducting expenses payable by the Company estimated at $175,000.
(4)  The Company has granted to the  several Underwriters an option for 30  days
     to  purchase up to an additional 450,000 Depositary Shares, solely to cover
     over-allotments, if any.  If all of  such shares are  purchased, the  total
     Price to Public, Underwriting Discount and Proceeds to Company will be $  ,
     $    and $    , respectively. See "Underwriting."
</TABLE>
 
                            ------------------------
 
    The  Depositary Shares are  offered by the  several Underwriters, subject to
prior sale,  when, as  and if  delivered to  and accepted  by the  Underwriters,
subject to approval of certain legal matters by counsel for the Underwriters and
to  certain other  conditions. The Underwriters  reserve the  right to withdraw,
cancel or modify  such offer and  to reject orders  in whole or  in part. It  is
expected  that  delivery of  the Depositary  Receipts evidencing  the Depositary
Shares will be made in New York, New York on or about        , 1996.
                            ------------------------
MERRILL LYNCH & CO.
            DEAN WITTER REYNOLDS INC.
                                      A.G. EDWARDS & SONS, INC.
                                                               SMITH BARNEY INC.
                                 --------------
 
           The date of this Prospectus Supplement is August   ,1996.
<PAGE>
                                    [ MAP ]
 
    IN CONNECTION WITH THE OFFERING,  THE UNDERWRITERS MAY OVER-ALLOT OR  EFFECT
TRANSACTIONS  WHICH STABILIZE  OR MAINTAIN  THE MARKET  PRICE OF  THE DEPOSITARY
SHARES AND THE  SERIES A  PREFERRED SHARES  AT A  LEVEL ABOVE  THAT WHICH  MIGHT
OTHERWISE  PREVAIL IN THE OPEN MARKET. SUCH  TRANSACTIONS MAY BE EFFECTED ON THE
NEW YORK  STOCK EXCHANGE,  IN  THE OVER-THE-COUNTER  MARKET OR  OTHERWISE.  SUCH
STABILIZING, IF COMMENCED, MAY BE DISCONTINUED AT ANY TIME.
 
                                      S-2
<PAGE>
                         PROSPECTUS SUPPLEMENT SUMMARY
 
    THE FOLLOWING SUMMARY IS QUALIFIED IN ITS ENTIRETY BY, AND SHOULD BE READ IN
CONJUNCTION  WITH,  THE MORE  DETAILED INFORMATION  APPEARING ELSEWHERE  IN THIS
PROSPECTUS SUPPLEMENT AND THE ACCOMPANYING PROSPECTUS OR INCORPORATED HEREIN AND
THEREIN BY REFERENCE. UNLESS INDICATED  OTHERWISE, THE INFORMATION CONTAINED  IN
THIS  PROSPECTUS SUPPLEMENT IS PRESENTED AS OF  JUNE 30, 1996. ALL REFERENCES TO
THE "COMPANY"  IN THIS  PROSPECTUS SUPPLEMENT  AND THE  ACCOMPANYING  PROSPECTUS
INCLUDE  THE  COMPANY, THOSE  ENTITIES OWNED  OR CONTROLLED  BY THE  COMPANY AND
PREDECESSORS OF THE COMPANY, UNLESS THE CONTEXT INDICATES OTHERWISE.
 
                                  THE COMPANY
 
    The Company is a self-administered  and self-managed real estate  investment
trust  (a "REIT") that  began operations through  a related entity  in 1972. The
Company owns a diversified  portfolio of 220  in-service industrial, office  and
retail  properties (the  "Properties"), encompassing  approximately 23.2 million
square feet and located in eight  states. The Properties have an aggregate  cost
basis  of $1.0 billion  and were 92.1% leased  as of June  30, 1996. The Company
provides leasing, management, construction, development and other tenant-related
services for the Properties and certain  properties owned by third parties.  The
Company  has the largest  commercial real estate  operations in Indianapolis and
Cincinnati and is one of the largest  real estate companies in the Midwest.  The
Company  believes that the Midwest offers a relatively strong and stable economy
compared to  other  regions  of  the  United  States  and  provides  significant
investment  opportunity through its  central location, established manufacturing
base, skilled work force and moderate labor costs.
 
    The following tables provide an overview of the Properties.
 
                             SUMMARY OF PROPERTIES
                       (IN THOUSANDS, EXCEPT PERCENTAGES)
 
<TABLE>
<CAPTION>
                                                                                              PERCENT
                                                                               ANNUAL        OF TOTAL
                                                               PERCENT          NET        NET EFFECTIVE       OCCUPANCY
                                                              OF TOTAL       EFFECTIVE        ANNUAL              AT
TYPE OF PROPERTY                              SQUARE FEET    SQUARE FEET      RENT (1)         RENT          JUNE 30, 1996
- --------------------------------------------  -----------  ---------------  ------------  ---------------  -----------------
<S>                                           <C>          <C>              <C>           <C>              <C>
Industrial..................................      15,897             68%     $   57,033             43%          91.1%
Office......................................       5,716             25          62,038             47           94.8%
Retail......................................       1,606              7          13,675             10           93.0%
                                              -----------           ---     ------------           ---
Total.......................................      23,219            100%     $  132,746            100%          92.1%
                                              -----------           ---     ------------           ---
                                              -----------           ---     ------------           ---
</TABLE>
 
- ------------------------
(1) Represents annual net  effective rent due  from tenants in  occupancy as  of
    June  30, 1996. Net effective rent ("Net Effective Rent") equals the average
    annual rental  property revenue  over the  terms of  the respective  leases,
    excluding  additional rent due as operating expense reimbursements, landlord
    allowances for operating expenses and percentage rents.
 
                                      S-3
<PAGE>
           SQUARE FOOTAGE AND ANNUAL NET EFFECTIVE RENT OF PROPERTIES
                       (IN THOUSANDS, EXCEPT PERCENTAGES)
 
<TABLE>
<CAPTION>
                                                             SQUARE FEET
                                     -----------------------------------------------------------   ANNUAL NET     PERCENT OF
                                                                                    PERCENT OF     EFFECTIVE      ANNUAL NET
PRIMARY MARKET                       INDUSTRIAL    OFFICE     RETAIL     OVERALL      OVERALL       RENT (1)    EFFECTIVE RENT
- -----------------------------------  -----------  ---------  ---------  ---------  -------------  ------------  ---------------
<S>                                  <C>          <C>        <C>        <C>        <C>            <C>           <C>
Indianapolis.......................      10,176       1,341        194     11,711           50%    $   49,628             37%
Cincinnati.........................       3,637       2,135        621      6,393           28         40,937             31
Columbus...........................         960         888        293      2,141            9         15,748             12
Cleveland..........................      --             644     --            644            3          8,450              6
Nashville..........................         562      --         --            562            2          3,632              3
St. Louis..........................      --             463     --            463            2          5,161              4
Detroit............................      --             245     --            245            1          2,845              2
Other(2)...........................         562      --            498      1,060            5          6,345              5
                                     -----------  ---------  ---------  ---------          ---    ------------           ---
    Total..........................      15,897       5,716      1,606     23,219          100%    $  132,746            100%
                                     -----------  ---------  ---------  ---------          ---    ------------           ---
                                     -----------  ---------  ---------  ---------          ---    ------------           ---
    Percent of Total Square Feet...          68%         25%         7%
                                     -----------  ---------  ---------
                                     -----------  ---------  ---------
</TABLE>
 
- ------------------------
 
(1) Represents annual  Net Effective Rent  due from tenants  in occupancy as  of
    June 30, 1996.
 
(2)  Represents properties not  located in the  Company's primary markets. These
    properties are located in other midwestern markets.
 
                                  THE OFFERING
 
<TABLE>
<S>                       <C>
Securities Offered......  3,000,000 Depositary Shares. Each  Depositary Share represents  a
                          1/10  fractional interest  in a      % Series  A Preferred Share.
                          Application has been made  to list the  Depositary Shares on  the
                          NYSE,  subject to  notice of  issuance, with  trading expected to
                          commence within a 30-day period after the initial delivery of the
                          Depositary Shares.
Use of Proceeds.........  The net proceeds to the Company from the Offering  (approximately
                          $72.5  million) will be  used to repay  $59.6 million in mortgage
                          debt and to fund current development and acquisition costs.
Ranking.................  With respect to  the payment  of distributions  and amounts  upon
                          liquidation,  the Series  A Preferred  Shares represented  by the
                          Depositary Shares offered  hereby will rank  pari passu with  any
                          other  preferred shares which are not by their terms subordinated
                          to the Series  A Preferred  Shares and  will rank  senior to  the
                          Common  Stock and any other shares  of the Company which by their
                          terms  rank  junior  to  the  Series  A  Preferred  Shares.   See
                          "Description   of  Preferred  Stock--Rank"  in  the  accompanying
                          Prospectus.
</TABLE>
 
                                      S-4
<PAGE>
 
<TABLE>
<S>                       <C>
Distributions...........  Distributions on the Series A Preferred Shares represented by the
                          Depositary Shares offered hereby are cumulative from the date  of
                          issue  and  are payable  quarterly on  or about  the last  day of
                          February, May, August  and November of  each year, commencing  on
                          the  business day  succeeding November 30,  1996, at  the rate of
                             % of  the  liquidation  preference per  annum  (equivalent  to
                          $         per annum  per Depositary Share).  Distributions on the
                          Series A Preferred Shares will accrue whether or not the  Company
                          has  earnings, whether or  not there are  funds legally available
                          for the payment  of such  distributions and whether  or not  such
                          distributions are declared.
Liquidation Rights......  The  Series A Preferred Shares will have a liquidation preference
                          of $250.00 per Series A Preferred Share (equivalent to $25.00 per
                          Depositary Share), plus  an amount  equal to  accrued and  unpaid
                          distributions.  See "Description of Series A Preferred Shares and
                          Depositary Shares--Liquidation Rights."
Redemption..............  The Series A Preferred Shares are not redeemable prior to  August
                          31,  2001. See  "Description of  Preferred Stock--Restrictions on
                          Ownership" in the  accompanying Prospectus. On  and after  August
                          31,  2001, the Series  A Preferred Shares  will be redeemable for
                          cash at  the option  of the  Company,  in whole  or in  part,  at
                          $250.00  per share  (equivalent to $25.00  per Depositary Share),
                          plus distributions accrued and unpaid to the redemption date. The
                          redemption price (other  than the portion  thereof consisting  of
                          accrued  and unpaid distributions)  is payable solely  out of the
                          sale proceeds of other  shares of the  Company which may  include
                          other  series of preferred shares, and  from no other source. See
                          "Description  of  Series  A   Preferred  Shares  and   Depositary
                          Shares--Redemption."
Voting Rights...........  If  distributions on the Series A Preferred Shares are in arrears
                          for six or more quarterly periods, whether or not such  quarterly
                          periods   are  consecutive,  holders  of  the  Depositary  Shares
                          representing the Series A Preferred Shares (voting separately  as
                          a class with all other series of preferred shares upon which like
                          voting  rights have been  conferred and are  exercisable) will be
                          entitled to vote for the election of two additional Directors  to
                          serve  on  the  Board  of  Directors  of  the  Company  until all
                          distribution arrearages  have  been  paid.  See  "Description  of
                          Preferred Stock--Voting Rights" in the accompanying Prospectus.
Conversion..............  The Series A Preferred Shares are not convertible or exchangeable
                          for any other property or securities of the Company.
</TABLE>
 
                                      S-5
<PAGE>
                                  THE COMPANY
 
    The  Company  is  a  self-administered  and  self-managed  REIT  that  began
operations through a  related entity  in 1972.  The Company  owns a  diversified
portfolio   of  220   in-service  industrial,  office   and  retail  Properties,
encompassing approximately 23.2 million square feet and located in eight states.
The Properties  have an  aggregate cost  basis of  $1.0 billion  and were  92.1%
leased   as  of  June  30,  1996.  The  Company  provides  leasing,  management,
construction, development and other  tenant-related services for the  Properties
and  certain  properties owned  by third  parties. The  Company has  the largest
commercial real estate operations in Indianapolis  and Cincinnati and is one  of
the  largest real estate companies in the Midwest. The Company believes that the
Midwest offers a relatively strong and stable economy compared to other  regions
of the United States and provides significant investment opportunity through its
central  location,  established  manufacturing  base,  skilled  work  force  and
moderate labor costs.
 
    All of  the Company's  interests  in the  Properties  are held  directly  or
indirectly  by,  and  substantially  all  of  its  operations  relating  to  the
Properties  are  conducted  through,   Duke  Realty  Limited  Partnership   (the
"Operating Partnership"). Units in the Operating Partnership may be exchanged by
the  holders thereof, other  than the Company,  for common stock  of the Company
("Common Stock") on a one  for one basis. Upon an  exchange of Units for  Common
Stock,  the  Company's percentage  interest  in the  Operating  Partnership will
increase. The Company  controls the  Operating Partnership as  the sole  general
partner and owner, as of June 30, 1996, of approximately 88.8% of the Units.
 
    The  Company has  benefited, and  expects to  continue to  benefit, from the
following elements:
 
EXPERIENCED MANAGEMENT
 
    The Company's  six senior  executives collectively  have over  121 years  of
experience  in the real  estate industry and  have been with  the Company for an
average of 17 years. The Company is a fully integrated real estate company which
includes  a  Property  Management  Department  which  aggressively  manages  the
property  portfolio through  significant interaction  with existing  tenants, an
Acquisitions Department  dedicated to  locating  strategic acquisitions  in  the
Company's primary markets, Development Managers in each of the Company's primary
markets  who  pursue  select  development  opportunities  meeting  the Company's
investment criteria,  a Construction  Management Department  which oversees  the
construction  of the Company's development to assure quality construction at the
lowest possible  cost,  an  Accounting and  Finance  Department  which  monitors
property  performance  and evaluates  the  financial impact  of  development and
acquisition opportunities and an Investor Relations Department which coordinates
the dissemination of information about the Company to investors and analysts.
 
BUSINESS STRATEGY
 
    The Company's business objective is to increase its Funds From Operations by
(i) maintaining and increasing property  occupancy and rental rates through  the
aggressive  management of its  portfolio of existing  properties; (ii) expanding
existing properties; (iii)  developing and  acquiring new  properties; and  (iv)
providing  a full line of  real estate services to  the Company's tenants and to
third parties.
 
    The Company  believes that  the analysis  of real  estate opportunities  and
risks can be done most effectively at regional or local levels. As a result, the
Company  intends to  continue its  emphasis on  increasing its  market share and
effective rents  in  its existing  markets  primarily within  the  Midwest.  The
Company  also expects to  utilize its approximately  1,175 acres of unencumbered
land (the "Land") and its  many business relationships with approximately  2,800
commercial  tenants to  expand its build-to-suit  business (development projects
substantially pre-leased to a single tenant) and to pursue other development and
acquisition opportunities in  its existing markets  and elsewhere, primarily  in
the  Midwest. The  Company believes  that this regional  focus will  allow it to
assess market supply and demand for real  estate more effectively as well as  to
capitalize on its strong relationships with its tenant base.
 
    The  Company's  policy  is  to seek  to  develop  and  acquire substantially
pre-leased Class  A commercial  properties located  in markets  with  attractive
investment potential for Fortune 500 companies and other
 
                                      S-6
<PAGE>
quality  regional and local firms. The  Company's industrial and suburban office
development focuses on business  parks and mixed  use developments suitable  for
development  of multiple  projects on  a single site  and where  the Company can
create and control the business environment. These business parks and mixed  use
developments generally include restaurants and other amenities which the Company
believes  create an atmosphere that is particularly efficient and desirable. The
Company's retail  development  focuses  on  community,  power  and  neighborhood
centers  in its existing markets. As a fully integrated real estate company, the
Company is able to arrange for or  provide to its industrial, office and  retail
tenants  not  only  well  located  and  well  maintained  facilities,  but  also
additional  services  such  as  build   to  suit  construction,  tenant   finish
construction, expansion flexibility and advertising and marketing services.
 
    Development  projects  and  property  acquisitions  with  investment  values
exceeding established guidelines are subject to  the review and approval of  the
Asset  Committee, which is comprised of  a majority of unaffiliated directors of
the Company.  All  other  development projects  and  property  acquisitions  are
subject  to the review and approval of  the Credit Committee, which is comprised
of members of executive management of the Company.
 
FINANCING STRATEGY
 
    The Company seeks  to maintain  a well-balanced,  conservative and  flexible
capital structure by: (i) currently targeting a ratio of long-term debt to total
market  capitalization in the range of 25% to 40%; (ii) extending and sequencing
the maturity dates of its debt;  (iii) borrowing primarily at fixed rates;  (iv)
generally pursuing current and future long-term debt financings and refinancings
on  an  unsecured basis;  (v) maintaining  conservative  debt service  and fixed
charge coverage  ratios; and  (vi) maintaining  a conservative  dividend  payout
ratio.  Management  believes  that  these  strategies  have  enabled  and should
continue to enable the Company to access the debt and equity capital markets for
their long-term  requirements  such  as  debt  refinancings  and  financing  for
development  and acquisitions of  additional rental Properties.  The Company has
demonstrated its ability to  access the equity and  debt markets to finance  the
activities  of the  Company through recent  public offerings of  Common Stock in
October 1993, September  1994, May 1995  and March 1996  and unsecured notes  in
September  1995 and July  1996 which generated aggregate  net proceeds of $812.7
million. It is the Company's policy that Duke Realty Investments, Inc. shall not
incur indebtedness other than short-term trade, employee compensation, dividends
payable or similar  indebtedness that  will be paid  in the  ordinary course  of
business,  and  that indebtedness  shall instead  be  incurred by  the Operating
Partnership to the extent necessary to fund the business activities conducted by
the Operating Partnership and its subsidiaries.
 
DIVERSIFIED PORTFOLIO
 
    The Company owns a  diversified portfolio of  properties which includes  (i)
the  in-service  Properties, consisting  of  220 industrial,  office  and retail
properties located in  Indiana, Ohio, Illinois,  Michigan, Tennessee,  Kentucky,
Wisconsin  and  Missouri;  (ii)  14  buildings  and  three  building  expansions
currently under development;  and (iii)  the Land,  consisting of  approximately
1,175  acres  of  unencumbered land  for  future development  in  Indiana, Ohio,
Missouri, Illinois, Kentucky, and Tennessee. The Company owns the entire  equity
interest   in  168  of  the   Properties,  including  property  currently  under
development, and a  partial interest  in the  remainder of  the Properties.  The
Properties  are comprised of a  broad range of product  types which include bulk
and medium  bulk  warehouse  and distribution  facilities,  light  manufacturing
facilities,  multi-tenant  flex  space  buildings,  suburban  office  buildings,
downtown office  buildings,  and  neighborhood,  power  and  community  shopping
centers.  The Company  believes that its  Properties are of  the highest quality
available to tenants in its markets. The total square footage of the  in-service
Properties  is  approximately  23.2 million,  consisting  of  approximately 15.9
million square feet of industrial  space, approximately 5.7 million square  feet
of  office space and approximately 1.6 million  square feet of retail space. The
total square footage of the 14 buildings and three building expansions currently
under development  is  approximately  3.4 million  square  feet,  consisting  of
approximately 2.2 million square feet of industrial space, approximately 783,000
square  feet of  office space  and approximately  445,000 square  feet of retail
space. The current development projects are 74% leased as of June 30, 1996.  The
total annual Net Effective Rental income of
 
                                      S-7
<PAGE>
the  Properties  based  upon  tenants  in  occupancy  as  of  June  30,  1996 is
approximately $132.7  million, with  $57.0 million  relating to  the  industrial
Properties,  $62.0 million relating  to the office  Properties and $13.7 million
relating to the retail Properties. At  June 30, 1996, the Properties were  92.1%
leased.
 
MIDWESTERN FOCUS
 
    The  Company believes that the Midwest offers a relatively strong and stable
economy compared to other regions of  the United States and provides  attractive
new  opportunities through its central location, established manufacturing base,
skilled work force and moderate labor costs. In addition, the interstate highway
systems  serving  Indianapolis,  Cincinnati  and  Columbus,  markets  in   which
approximately  80% and 87% of  the Properties, in terms  of both dollar value of
Net Effective  Rent and  square footage,  respectively, are  located, help  make
those  cities prime industrial  and office property  locations. According to the
Chicago Association of  Commerce and  Industry, these three  cities rank  first,
third  and  fourth, respectively,  in  being centrally  located  to the  top 100
markets in the United States.
 
    Employment statistics are generally a useful  measure of the viability of  a
commercial real estate market because the demand for industrial and office space
in  a geographic area is  usually linked to the  levels of business activity and
disposable income. According to the  United States Department of Labor's  Bureau
of  Labor Statistics, the unemployment rate at March 31, 1996 was 3.7%, 4.3% and
3.3%  in  the   Indianapolis,  Cincinnati  and   Columbus  metropolitan   areas,
respectively,  compared  to  5.6%  for the  United  States.  Additionally, total
non-farm employment has  increased 17.2%, 8.4%  and 13.0% from  January 1989  to
March 31, 1996 for the Indianapolis, Cincinnati and Columbus metropolitan areas,
respectively, as compared to 8.6% for the United States.
 
    Management  believes that  the Company's assets  are located  in strong real
estate  markets  with  good  investment  potential.  The  Fall  1995  issue   of
MarketScore,  a National Real  Estate Index and Ernst  & Young Kenneth Leventhal
Real Estate Group  publication ("MarketScore"), rated  63 metropolitan areas  in
the  United States in  terms of their  real estate investment  potential for the
succeeding two years.  The study  segmented each metropolitan  area by  property
type  and considered  real estate,  economic and  demographic variables  such as
vacancy rates, construction, rental trends, job growth, population and household
growth, and  household income.  Approximately 25.6  million square  feet of  the
Company's  in-service and under-development Properties are in markets considered
by MarketScore to have good or excellent investment potential.
 
    INDIANAPOLIS, INDIANA.  With more  than 1.5 million residents,  Indianapolis
is  Indiana's  largest  metropolitan  area.  With  a  central  location  at  the
intersection of four interstate highways, Indianapolis continues to attract  new
growth  by offering a skilled work force and stable economic base. Indianapolis'
economic base includes  distribution, government,  manufacturing, retail  trade,
service and tourism related industries. According to the Indianapolis Chamber of
Commerce,  United  Airlines,  Federal  Express  and  Dow  Elanco  have  recently
established major new  facilities in Indianapolis.  The Indianapolis  industrial
market  continues to have  a declining vacancy rate.  According to CB Commercial
Real Estate Group, Inc. ("CB Commercial"), the industrial vacancy rate decreased
by 1.1% over the 24 months ended March 31, 1996 to 2.9%, less than the  national
industrial  vacancy rate average  of 7.0%. According  to the Fall  1995 issue of
MarketScore, Indianapolis is rated as the second best warehouse and distribution
market in  the  United States.  The  Indianapolis suburban  office  market  also
strengthened  over the 24-month period. According to CB Commercial, at March 31,
1996, Indianapolis  had  a 9.0%  suburban  office  vacancy rate  compared  to  a
national average of 13.0%.
 
    CINCINNATI,  OHIO.   Cincinnati is the  second largest  metropolitan area in
Ohio with a population of 1.6 million. With an unemployment rate which is  below
the  national  average,  Cincinnati's  economic  base  is  healthy  and diverse.
Balanced between major  Fortune 500 employers  and entrepreneurial  enterprises,
Cincinnati's economic base includes banking, distribution, manufacturing, retail
trade and service related industries. Relatively low taxes, an expanding airport
(a  major North American hub for Delta  Airlines) and aggressive state and local
incentive packages designed to  attract new business  have contributed to  major
 
                                      S-8
<PAGE>
corporate  relocations  in Cincinnati.  Indicative of  the economic  strength in
Cincinnati, the industrial vacancy rate as reported by CB Commercial declined by
1.9% over  the 24  months ended  March  31, 1996  to 2.9%,  less than  half  the
national  average of 7.0%. As reported by CB Commercial, the Cincinnati suburban
office market vacancy rate was  12.8% at March 31,  1996 compared to a  national
average  of 13.0%, and the Cincinnati downtown office vacancy rate improved 1.0%
over the same period to 14.1% at March 31, 1996 compared to the national average
of 15.0%.
 
    COLUMBUS, OHIO.    The  Columbus  metropolitan  area  has  a  population  of
approximately  1.4 million and  is the third largest  metropolitan area in Ohio.
The city's central location,  well-trained work force and  high quality of  life
have  established Columbus  as a  major transportation  and distribution center.
Columbus' economic base includes distribution, government, manufacturing, retail
trade and service-related industries. As reported by CB Commercial, as of  March
31,  1996 industrial and suburban office vacancy rates in Columbus were 7.4% and
8.7% compared to  the national averages  of 7.0% and  13.0%, respectively.  This
suburban office vacancy rate is the twelfth lowest out of 54 markets surveyed by
CB Commercial.
 
    The following table summarizes important economic and performance statistics
for the Company's principal markets and for the United States.
 
<TABLE>
<CAPTION>
                                  CENTRAL         MARCH 1996                              MARCH 1996            MARCH 1996
                                 LOCATION        UNEMPLOYMENT     JOB GROWTH SINCE    INDUSTRIAL PROPERTY     SUBURBAN OFFICE
                                RANKING (1)        RATE (2)           1989 (2)         VACANCY RATE (3)      VACANCY RATE (3)
                              ---------------  -----------------  -----------------  ---------------------  -------------------
<S>                           <C>              <C>                <C>                <C>                    <C>
Indianapolis, Indiana.......         First               3.7%              17.2%                 2.9%                  9.0%
Cincinnati, Ohio............         Third               4.3%               8.4%                 2.9%                 12.8%
Columbus, Ohio..............        Fourth               3.3%              13.0%                 7.4%                  8.7%
United States...............        --                   5.6%               8.6%                 7.0%                 13.0%
</TABLE>
 
- ------------------------
(1) Source:  Chicago Association  of Commerce and  Industry. A  ranking based on
    proximity to the largest 100 metropolitan areas in the United States.
 
(2) Source: United States Department of Labor's Bureau of Labor Statistics.
 
(3) Source: CB Commercial.
 
    Consistent with its business strategy of expanding in attractive  Midwestern
markets,  in  1995  the Company  established  a  regional office  in  St. Louis,
Missouri. The Company believes that the St. Louis market offers attractive  real
estate  investment returns in the industrial and suburban office markets because
of its fragmented  competition, strong  real estate  fundamentals and  favorable
economic  conditions. To  date, the Company  has purchased  four suburban office
buildings and two  industrial buildings, has  under construction one  industrial
building  and owns 131 acres of  land for future industrial property development
in the St. Louis market.
 
    In February 1996 the Company continued this strategy through the acquisition
of eight  suburban  office  buildings  totaling 782,000  gross  square  feet  in
Cleveland,  Ohio. The buildings are 99% leased  in the aggregate and are located
primarily in a prime submarket on Cleveland's southside that has a vacancy  rate
of  less than 5%. The acquisition included  the purchase of the operations of an
established Cleveland property management  and development company that  allowed
the  Company to  immediately have a  presence in  the market. In  July 1996, the
Company completed the  acquisition of two  additional suburban office  buildings
comprising 204,000 square feet.
 
DOMINANT MARKET POSITION
 
    The  Company  manages  approximately  36 million  square  feet  of property,
including over  9.5 million  square feet  owned by  third parties.  The  Company
manages   approximately  34%  and  24%   of  all  competitive  suburban  office,
warehousing and  light  manufacturing  space  in  Indianapolis  and  Cincinnati,
respectively.  In addition to providing  services to approximately 1,600 tenants
in the Properties, the Company provides such
 
                                      S-9
<PAGE>
services to over 1,150  tenants in approximately 125  properties owned by  third
parties.  Based on market  data maintained by the  Company, the Company believes
that it  was responsible  in  1995 for  approximately 55%  and  66% of  the  net
absorption  (gross  space leased  minus lease  terminations and  expirations) of
competitive suburban  office,  warehousing  and  light  manufacturing  space  in
Indianapolis  and  Cincinnati,  respectively.  The  Company  believes  that  its
dominant position  in  the primary  markets  in which  it  operates gives  it  a
competitive advantage in its real estate activities.
 
QUALITY TENANT BASE
 
    The  Company's Properties  have a diverse  and stable  base of approximately
1,600 tenants. Many of  the tenants are  Fortune 500 companies  and engage in  a
wide variety of businesses, including manufacturing, retailing, wholesale trade,
distribution, and professional services. Approximately 50% of the square footage
of the Properties is occupied by tenants with a net worth based on book value of
$100  million or greater.  Approximately 70% of  the gross leasable  area of the
Properties is occupied by  tenants who have  been in business  for more than  10
years.  The Company renewed 70% of the square  feet of tenants up for renewal in
the first  six  months of  1996  on approximately  904,000  square feet  up  for
renewal. No single tenant accounts for more than 3% of the Company's Total Gross
Effective  Rent (computed using the average  annual rental property revenue over
the  terms  of  the  respective  leases  including  landlord  operating  expense
allowances   but   excluding   additional   rent   due   as   operating  expense
reimbursements).
 
                              RECENT DEVELOPMENTS
 
    OPERATING PERFORMANCE AND DIVIDEND INCREASE.  For the six months ended  June
30,  1996, the Company reported net income of $21.9 million on revenues of $83.7
millon, as compared to  $15.7 million and $60.4  million, respectively, for  the
same  period  in 1995.  Funds From  Operations  for the  same period  were $34.9
million as compared to $25.0 million  in 1995. See "Management's Discussion  and
Analysis  of  Financial  Condition  and  Results  of  Operations  --  Funds From
Operations."
 
    On July  25, 1996,  the  Company's Board  of  Directors declared  a  regular
quarterly dividend of $.51 per share, payable on August 30, 1996 to shareholders
of record on August 16, 1996. This dividend represents an annual increase of 4.1
percent  over  the  most  recent  quarterly  dividend  and  equals  $2.04  on an
annualized basis. This increase represents the third consecutive annual increase
in the Company's dividend payment since the Company's reorganization in  October
1993.
 
    FINANCING.   In March 1996, the Company  issued 4.4 million shares of Common
Stock raising net proceeds of $125.2  million. In July 1996, the Company  issued
$40.0  million of investment-grade Medium-Term Notes  maturing in July 2000 with
an interest rate of 7.28%.  The proceeds of these  financings have been used  to
reduce  the balance on  the Company's unsecured  line of credit  and to fund the
development and acquisition of additional rental properties.
 
    The Company is  currently in  negotiations with  its lenders  to reduce  the
interest  rate on its  $150.0 million unsecured  line of credit  from the 30-day
London Interbank Offered Rate ("LIBOR") plus 1.50% to LIBOR plus 1.25%.
 
    DEVELOPMENT AND ACQUISITIONS:   During  the first  six months  of 1996,  the
Company  placed in-service 1.6 million square feet of newly developed properties
which are 81% leased. The  total cost of these  properties is $49.6 million  and
the  combined weighted average  unleveraged stabilized return  on cost for these
properties is expected to be  11.6%. Also during the  first six months of  1996,
the Company acquired 1.6 million square feet of properties which are 72% leased.
The  total cost of these properties is  $101.9 million and the combined weighted
average unleveraged stabilized return on  cost for these properties is  expected
to  be 11.3%. The  Company currently has  3.4 million square  feet of properties
under development  which are  74% pre-leased.  These properties  consist of  64%
industrial,  23% office and 13% retail  properties (based on square footage) and
will have a total cost upon completion of $153.6 million. The combined  weighted
 
                                      S-10
<PAGE>
average  unleveraged stabilized return on cost  for these properties is expected
to be  11.6%.  The  cost  of  the properties  under  development  to  be  placed
in-service  in the third quarter of 1996 is $87.0 million, in the fourth quarter
of 1996 is $33.2 million and in 1997 is $33.4 million.
 
                                USE OF PROCEEDS
 
    The net  proceeds to  the Company  from the  sale of  the Depositary  Shares
offered  hereby are  expected to  be approximately  $72.5 million (approximately
$83.4 million if the Underwriters' over-allotment option is exercised in  full).
The  Company intends to contribute or otherwise transfer the net proceeds of the
sale of the Depositary Shares to the Operating Partnership in exchange for     %
Series  A Cumulative Redeemable  Preference Units in  the Operating Partnership,
the economic terms  of which  will be substantially  identical to  the Series  A
Preferred  Shares.  The  Operating  Partnership will  be  required  to  make all
required distributions on  the     % Series  A Cumulative Redeemable  Preference
Units (which will mirror the payments of dividends, including accrued and unpaid
dividends upon redemption, and the liquidation preference amount on the Series A
Preferred  Shares) prior to any distribution of cash or assets to the holders of
the Units. See "Description of Series  A Preferred Shares and Depositary  Shares
- --  Distributions." The  Operating Partnership presently  intends to immediately
use  $59.6  million  of  the   net  proceeds  to  retire  outstanding   mortgage
indebtedness  which was scheduled to mature  between October 31 and December 15,
1996 and bears interest at an average rate of approximately 6.25%. The remaining
proceeds will be used to fund  development and acquisition of additional  rental
properties.  Pending such uses,  the net proceeds may  be invested in short-term
income producing investments such as commercial paper, government securities  or
money market funds that invest in government securities.
 
                                      S-11
<PAGE>
                                 CAPITALIZATION
 
    The  following table  sets forth the  capitalization of the  Company and its
subsidiaries as of June 30, 1996 and  as adjusted to give effect to issuance  of
the  300,000 Series A Preferred Shares offered hereby and the application of the
net proceeds thereof. The table should be read in conjunction with the Company's
consolidated financial statements incorporated herein by reference.
 
<TABLE>
<CAPTION>
                                                                                    JUNE 30, 1996
                                                                              --------------------------
                                                                               HISTORICAL   AS ADJUSTED
                                                                              ------------  ------------
                                                                                    (IN THOUSANDS)
<S>                                                                           <C>           <C>
Debt:
  Mortgage Debt.............................................................  $    281,856  $    222,237
  7.25% Notes due 2002......................................................        50,000        50,000
  7.28% Notes due 2000......................................................       --             40,000(1)
  7.375% Notes due 2005.....................................................       100,000       100,000
  Lines of Credit...........................................................       --            --
                                                                              ------------  ------------
  Total Debt................................................................  $    431,856  $    412,237
                                                                              ------------  ------------
Minority Interest...........................................................        12,780        12,780
                                                                              ------------  ------------
Shareholders' Equity:
  Preferred Stock ($.01 par value), 5,000 shares authorized:    % Series A
   Cumulative Redeemable Preferred Shares, liquidation preference $250 per
   share, no shares issued and outstanding (300 as adjusted)................       --             72,463
  Common Stock ($.01 par value), 45,000 shares authorized; 29,320 issued and
   outstanding (2)..........................................................       725,830       725,830
  Distributions in excess of net income.....................................       (47,984)      (47,984)
                                                                              ------------  ------------
  Total Shareholders' Equity................................................  $    677,846  $    750,309
                                                                              ------------  ------------
Total Capitalization........................................................  $  1,122,482  $  1,175,326
                                                                              ------------  ------------
                                                                              ------------  ------------
</TABLE>
 
- ------------------------
(1) In July 1996, the Company issued $40 million of 7.28% unsecured notes  which
    mature in July 2000.
 
(2) Does  not include 3,697 shares reserved for issuance upon exchange of issued
    and outstanding Units.
 
                                      S-12
<PAGE>
                      SELECTED CONSOLIDATED FINANCIAL DATA
 
    The following table sets forth selected financial and operating  information
for  the Company  on a  historical basis. The  information was  derived from the
Company's financial  statements,  which are  incorporated  by reference  in  the
accompanying Prospectus.
 
    The  following selected financial information  should be read in conjunction
with "Management's Discussion and Analysis of Financial Condition and Results of
Operations" for  the  Company  and  the  financial  statements  incorporated  by
reference in the accompanying Prospectus.
 
<TABLE>
<CAPTION>
                                                                            SIX MONTHS ENDED
                                                                          --------------------      YEAR ENDED DECEMBER 31,
                                                                          JUNE 30,   JUNE 30,   -------------------------------
                                                                            1996       1995       1995       1994     1993 (1)
                                                                          ---------  ---------  ---------  ---------  ---------
                                                                                             (IN THOUSANDS)
<S>                                                                       <C>        <C>        <C>        <C>        <C>
OPERATING DATA:
RENTAL OPERATIONS:
  Revenues:
    Rental income.......................................................  $  71,714  $  51,775  $ 112,931  $  88,243  $  33,351
    Equity in earnings of unconsolidated companies......................      2,547        470        710      1,056        297
                                                                          ---------  ---------  ---------  ---------  ---------
                                                                             74,261     52,245    113,641     89,299     33,648
                                                                          ---------  ---------  ---------  ---------  ---------
  Operating expenses:
    Rental expenses.....................................................     13,881      9,544     20,953     17,158      7,059
    Real estate taxes...................................................      6,507      4,290      9,683      8,256      3,403
    Interest expense....................................................     14,617     10,053     21,424     18,920     10,334
    Depreciation and amortization.......................................     16,157     11,103     24,337     18,036      7,369
                                                                          ---------  ---------  ---------  ---------  ---------
                                                                             51,162     34,990     76,397     62,370     28,165
                                                                          ---------  ---------  ---------  ---------  ---------
    Earnings from rental operations.....................................     23,099     17,255     37,244     26,929      5,483
                                                                          ---------  ---------  ---------  ---------  ---------
SERVICE OPERATIONS:
  Revenues:
    Property management, maintenance and leasing fees...................      5,662      5,256     11,138     11,084      3,000
    Construction management and development fees........................      3,153      2,455      5,582      6,107      2,501
    Other income........................................................        668        444      1,057      1,282        153
                                                                          ---------  ---------  ---------  ---------  ---------
                                                                              9,483      8,155     17,777     18,473      5,654
                                                                          ---------  ---------  ---------  ---------  ---------
  Operating expenses:
    Payroll.............................................................      4,617      3,644      7,606      8,141      2,688
    Maintenance.........................................................        717        546      1,344      1,069        473
    Office and other....................................................      1,339        968      2,258      2,188        957
                                                                          ---------  ---------  ---------  ---------  ---------
                                                                              6,673      5,158     11,208     11,398      4,118
                                                                          ---------  ---------  ---------  ---------  ---------
    Earnings from service operations....................................      2,810      2,997      6,569      7,075      1,536
                                                                          ---------  ---------  ---------  ---------  ---------
  General and administrative expense....................................     (2,263)    (1,643)    (3,536)    (3,261)      (737)
                                                                          ---------  ---------  ---------  ---------  ---------
 
  Operating income......................................................     23,646     18,609     40,277     30,743      6,282
                                                                          ---------  ---------  ---------  ---------  ---------
 
OTHER INCOME (EXPENSE):
  Interest income.......................................................        613        901      1,900      1,115        164
  Earnings from property sales..........................................      1,604     --            283      2,198        517
  Minority interest in earnings of subsidiaries.........................     (3,916)    (3,804)    (7,441)    (7,840)    (1,950)
                                                                          ---------  ---------  ---------  ---------  ---------
Net income..............................................................  $  21,947  $  15,706  $  35,019  $  26,216  $   5,013
                                                                          ---------  ---------  ---------  ---------  ---------
                                                                          ---------  ---------  ---------  ---------  ---------
</TABLE>
 
                                      S-13
<PAGE>
 
<TABLE>
<CAPTION>
                                                                                                 AS OF DECEMBER 31,
                                                                              JUNE 30,    ---------------------------------
                                                                                1996         1995        1994     1993 (1)
                                                                             -----------  -----------  ---------  ---------
                                                                                             (IN THOUSANDS)
<S>                                                                          <C>          <C>          <C>        <C>
BALANCE SHEET DATA:
Real estate investments....................................................  $ 1,110,108  $   963,499  $ 723,713  $ 592,843
Accumulated depreciation...................................................      (69,250)     (56,335)   (38,058)   (23,725)
                                                                             -----------  -----------  ---------  ---------
  Net real estate investments..............................................    1,040,858      907,164    685,655    569,118
Cash.......................................................................          286        5,727     40,433     10,065
Investments in unconsolidated companies....................................       73,164       67,771      8,418     14,270
Other assets...............................................................       63,484       64,926     40,395     39,432
                                                                             -----------  -----------  ---------  ---------
    Total assets...........................................................    1,177,792    1,045,588    774,901    632,885
                                                                             -----------  -----------  ---------  ---------
                                                                             -----------  -----------  ---------  ---------
 
Mortgage debt..............................................................  $   281,856  $   259,820  $ 298,640  $ 249,034
7.25% Notes due 2002.......................................................       50,000       50,000     --         --
7.375% Notes due 2005......................................................      100,000      100,000     --         --
Lines of credit............................................................      --            45,000     --         --
                                                                             -----------  -----------  ---------  ---------
    Total debt.............................................................      431,856      454,820    298,640    249,034
Other liabilities..........................................................       55,310       51,243     29,543     34,863
                                                                             -----------  -----------  ---------  ---------
    Total liabilities......................................................      487,166      506,063    328,183    283,897
                                                                             -----------  -----------  ---------  ---------
Minority interest..........................................................       12,780        4,736      1,334      1,950
                                                                             -----------  -----------  ---------  ---------
Shareholders' equity.......................................................      677,846      534,789    445,384    347,038
                                                                             -----------  -----------  ---------  ---------
    Total liabilities and shareholders' equity.............................  $ 1,177,792  $ 1,045,588  $ 774,901  $ 632,885
                                                                             -----------  -----------  ---------  ---------
                                                                             -----------  -----------  ---------  ---------
</TABLE>
 
<TABLE>
<CAPTION>
                                                                    SIX MONTHS ENDED
                                                                ------------------------       YEAR ENDED DECEMBER 31,
                                                                 JUNE 30,     JUNE 30,    ---------------------------------
                                                                   1996         1995         1995        1994     1993 (1)
                                                                -----------  -----------  -----------  ---------  ---------
                                                                                      (IN THOUSANDS)
<S>                                                             <C>          <C>          <C>          <C>        <C>
OTHER DATA:
  Funds from Operations Available to Common
   Shareholders (2)...........................................  $    34,911  $    24,957  $    54,746  $  38,198  $  11,064
  Cash flow provided by (used in):
    Operating activities......................................       39,102       40,797       78,620     51,873     14,363
    Investing activities......................................      (93,584)    (114,421)    (289,569)  (116,238)  (315,025)
    Financing activities......................................       49,041       68,603      176,243     94,733    310,717
  Ratio of earnings to debt service (3).......................         2.52         2.77         2.79       2.51       1.57
  Ratio of earnings to fixed charges (4)......................         2.07         2.48         2.38       2.33       1.58
  Ratio of Funds from Operations before debt service to debt
   service (2)(5).............................................         3.23         3.32         3.37       2.87       2.03
  Ratio of Funds from Operations before fixed charges to fixed
   charges (2)(6).............................................         2.85         3.08         3.04       2.75       2.04
  Weighted average shares outstanding.........................       26,714       21,190       22,679     17,139      5,459
  Number of in-service Properties at end of period............          220          144          202        128        113
  Square feet available at end of period......................       23,219       15,169       20,073     12,896     10,850
</TABLE>
 
- --------------------------
(1) On  October 4, 1993, the Company  completed the acquisition of substantially
    all of  the properties  and businesses  of Duke  Associates, a  full-service
    commercial   real   estate   firm  (the   "Reorganization").   The  selected
    consolidated financial statements include the accounts and operations of the
    Company for the  period from  January 1,  1993 to  October 4,  1993 and  the
    accounts  and operations of the Company and its majority-owned or controlled
    subsidiaries for the period  from October 4, 1993  to December 31, 1993  and
    subsequent periods.
 
(2) Funds  from Operations  ("FFO"), is defined  by the  National Association of
    Real Estate Investment  Trusts ("NAREIT")  as net income  or loss  excluding
    gains  or  losses  from  debt  restructuring  and  sales  of  property  plus
    depreciation and amortization, and after adjustments for minority  interest,
    unconsolidated  partnerships  and joint  ventures (adjustments  for minority
    interests, unconsolidated partnerships and joint ventures are calculated  to
    reflect FFO on the same basis).
 
                                      S-14
<PAGE>
    FFO  does not  represent cash flow  from operations as  defined by generally
    accepted accounting principles, should not  be considered as an  alternative
    to  net income as an indicator of the Company's operating performance and is
    not indicative of cash available to fund all cash flow needs. In March 1995,
    NAREIT issued a clarification  of its definition  of FFO. The  clarification
    provides  that amortization of deferred  financing costs and depreciation of
    non-rental real estate assets are no longer  to be added back to net  income
    in  arriving at FFO. The Company  adopted these changes effective January 1,
    1996, and the  calculations of FFO  for all periods  presented in the  table
    have  been revised accordingly. See "Management's Discussion and Analysis of
    Financial Condition and Results of Operations -- Funds From Operations."
 
(3) In computing the  ratios of  earnings to  debt service,  earnings have  been
    calculated  by  adding debt  service  to income  before  gains or  losses on
    property  sales  and  minority  interest   in  earnings  of  the   Operating
    Partnership.  Debt  service  consists of  interest  and  recurring principal
    amortization  (excluding  maturities)  and  excludes  amortization  of  debt
    issuance costs.
 
(4) In  computing the  ratios of earnings  to fixed charges,  earnings have been
    calculated by  adding  fixed  charges, excluding  capitalized  interest,  to
    income  before gains  or losses on  property sales and  minority interest in
    earnings of the Operating Partnership. Fixed charges consist (if applicable)
    of interest costs, whether expensed  or capitalized, the interest  component
    of  rental expense, amortization of debt  issuance costs and preferred stock
    distributions.
 
(5) The ratios of FFO before debt service  to debt service represent the sum  of
    FFO  before minority interest  in earnings of  the Operating Partnership and
    minority interest share of FFO adjustments and debt service compared to debt
    service.
 
(6) The ratios of FFO before fixed charges to fixed charges represent the sum of
    FFO before minority interest  in earnings of  the Operating Partnership  and
    minority  interest share  of FFO adjustments  and fixed  charges compared to
    fixed charges.
 
                                      S-15
<PAGE>
          MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION
                           AND RESULTS OF OPERATIONS
 
OVERVIEW
 
    The Company's operating results depend primarily upon income from the rental
operation of its industrial, office and retail properties located in its primary
markets.  This income from rental operations  is substantially influenced by the
supply and demand for the Company's rental space in its primary markets.
 
    In addition, the Company's continued growth is dependent upon its ability to
maintain occupancy rates and increase  rental rates on its in-service  portfolio
and to continue development and acquisition of additional rental properties. The
Company's  primary markets  in the  Midwest have  continued to  offer strong and
stable local economies compared to other  regions of the United States and  have
provided  attractive  new  development opportunities  because  of  their central
location, established manufacturing base, skilled work force and moderate  labor
costs.  Consequently,  the Company's  overall occupancy  rate of  its in-service
portfolio has exceeded 93% the last two years  and was at 92% at June 30,  1996.
The  Company expects  to continue  to maintain  its overall  occupancy levels at
comparable levels and also expects to be able to increase rental rates as leases
are renewed  or  new leases  are  executed. This  stable  occupancy as  well  as
increasing  rental rates should improve the Company's results of operations from
its in-service  properties. The  Company's strategy  for continued  growth  also
includes  developing and acquiring  additional rental properties  in its primary
markets and expanding into other attractive Midwestern markets.
 
    The  following  table  sets   forth  information  regarding  the   Company's
in-service  portfolio of  rental properties  as of  June 30,  1996 and  1995 (in
thousands, except percentages):
 
<TABLE>
<CAPTION>
                                                                               PERCENT OF
                                                   TOTAL SQUARE FEET       TOTAL SQUARE FEET          PERCENT OCCUPIED
                                                  --------------------  ------------------------  ------------------------
TYPE                                                1996       1995        1996         1995         1996         1995
- ------------------------------------------------  ---------  ---------  -----------  -----------  -----------  -----------
<S>                                               <C>        <C>        <C>          <C>          <C>          <C>
Industrial
  Service Centers...............................      2,971      2,167      12.80%       14.28%       93.62%       94.02%
  Bulk..........................................     12,926      7,151      55.67        47.14        90.50%       96.82%
Office
  Suburban......................................      4,684      3,588      20.17        23.65        97.12%       93.92%
  CBD...........................................        699        699       3.01         4.61        81.29%       90.49%
  Medical.......................................        333        198       1.43         1.31        90.26%       98.71%
Retail..........................................      1,606      1,366       6.92         9.01        92.98%       95.14%
                                                  ---------  ---------  -----------  -----------
    Total.......................................     23,219     15,169     100.00%      100.00%       92.13%       95.32%
                                                  ---------  ---------  -----------  -----------
                                                  ---------  ---------  -----------  -----------
</TABLE>
 
    The decrease in occupancy from 1995  to 1996 is attributed to the  scheduled
lease  expiration of a 90,000 square foot tenant in a downtown Cincinnati office
building and a recently  acquired 358,000 square  foot industrial facility  that
was   unoccupied  at  June  30,  1996.  In  July  1996,  the  Company  re-leased
approximately 204,000 square feet of such industrial facility.
 
    Management expects occupancy of the in-service property portfolio to  remain
stable  because (i) only 5.1% and 8.5%  of the Company's occupied square footage
is  subject  to  leases  expiring  in  the  remainder  of  1996  and  in   1997,
respectively,  and (ii) the  Company's renewal percentage  averaged 65%, 73% and
65% in 1995, 1994 and 1993, respectively.
 
                                      S-16
<PAGE>
    The following table reflects the  Company's lease expiration schedule as  of
June   30,  1996,  including  properties  under  development,  by  product  type
indicating square  footage and  annualized net  effective rents  under  expiring
leases (in thousands, except per square foot amounts):
 
<TABLE>
<CAPTION>
                                  INDUSTRIAL          OFFICE            RETAIL            TOTAL
                                ---------------  ----------------  ----------------  ----------------
                                SQUARE           SQUARE            SQUARE            SQUARE
YEARS OF EXPIRATION              FEET   DOLLARS   FEET    DOLLARS   FEET    DOLLARS   FEET   DOLLARS
- ------------------------------  ------  -------  ------   -------  ------   -------  ------  --------
<S>                             <C>     <C>      <C>      <C>      <C>      <C>      <C>     <C>
  1996........................  1,005   $ 4,279    196    $ 1,836     26    $   250  1,227   $  6,365
  1997........................  1,311     5,889    638      6,877     77        843  2,026     13,609
  1998........................  2,270     8,544    651      6,894    111      1,162  3,032     16,600
  1999........................  1,953     8,213    737      7,998    115      1,159  2,805     17,370
  2000........................  1,871     7,320    654      8,193    119      1,359  2,644     16,872
  2001........................  2,335     8,961    556      5,869     92      1,026  2,983     15,856
  2002........................    321     1,379    651      6,896     88        784  1,060      9,059
  2003........................    105       814    150      1,815     36        328    291      2,957
  2004........................    865     3,322     89      1,043     13        126    967      4,491
  2005........................    703     2,557    496      6,313    173      1,479  1,372     10,349
Thereafter....................  3,247    10,398  1,211     15,808  1,036      7,708  5,494     33,914
                                ------  -------  ------   -------  ------   -------  ------  --------
Total Leased..................  15,986  $61,676  6,029    $69,542  1,886    $16,224  23,901  $147,442
                                ------  -------  ------   -------  ------   -------  ------  --------
                                ------  -------  ------   -------  ------   -------  ------  --------
Total Portfolio...............  18,069           6,498             2,051             26,618
                                ------           ------            ------            ------
                                ------           ------            ------            ------
Annualized net effective rent
 per square foot..............          $  3.86           $ 11.53           $  8.60          $   6.17
                                        -------           -------           -------          --------
                                        -------           -------           -------          --------
</TABLE>
 
    This  stable  occupancy,  along with  stable  rental  rates in  each  of the
Company's markets, will allow the in-service portfolio to continue to provide  a
comparable  or increasing level of earnings  from rental operations. The Company
also expects to realize  growth in earnings from  rental operations through  (i)
the completion of the 3.4 million square feet of properties under development at
June  30, 1996 over the next five quarters; (ii) the development and acquisition
of additional rental properties in its primary markets; and (iii) the  expansion
into other attractive Midwestern markets.
 
RESULTS OF OPERATIONS
 
    Following  is  a summary  of the  Company's  operating results  and property
statistics for the six months ended June 30, 1996 and 1995 (in thousands, except
number of properties and per share amounts):
 
<TABLE>
<CAPTION>
                                                                          1996        1995
                                                                       ----------  -----------
<S>                                                                    <C>         <C>
Rental Operations revenue............................................  $   74,261  $    52,245
Service Operations revenue...........................................       9,483        8,155
Earnings from Rental Operations......................................      23,099       17,255
Earnings from Service Operations.....................................       2,810        2,997
Operating income.....................................................      23,646       18,609
Net income...........................................................  $   21,947  $    15,706
Weighted average shares outstanding..................................      26,714       21,190
Net income per share.................................................  $     0.82  $      0.74
Number of in-service properties at end of period.....................         220          144
In-service square footage at end of period...........................      23,219       15,169
Under development square footage at end of period....................       3,400        3,382
</TABLE>
 
COMPARISON OF SIX MONTHS ENDED JUNE 30, 1996 TO SIX MONTHS ENDED JUNE 30, 1995
 
    RENTAL  OPERATIONS.    The  expansion  of  the  in-service  rental  property
portfolio by 76 additional rental properties from June 30, 1995 to June 30, 1996
primarily  accounts  for  the $22.1  million  increase in  revenues  from Rental
Operations from 1995 to 1996. The increase from 1995 to 1996 in rental expenses,
real estate taxes and depreciation and amortization expense is also a result  of
the additional 76 in-service rental properties.
 
                                      S-17
<PAGE>
    The increase in equity in earnings of unconsolidated companies is due to the
effect of the formation of a joint venture (Dugan Realty L.L.C.) on December 28,
1995.  The Company formed Dugan Realty  L.L.C. with an institutional real estate
investor and  purchased  25  industrial  buildings  totaling  approximately  2.3
million  square feet.  Upon formation  of the  venture, the  Company contributed
approximately 1.4  million  square  feet  of  recently  developed  and  acquired
industrial  properties,  113 acres  of recently  acquired  land held  for future
development and approximately $16.7 million of cash for a 50.1% interest in  the
joint  venture with a  total initial recorded  investment of approximately $59.4
million. In May 1996, the Company  contributed a 600,000 square foot  industrial
building to the joint venture at an agreed value of $13.9 million and received a
distribution  of $6.9 million.  The Company accounts for  its investment in this
joint venture on the equity method because the joint venture partner's  approval
is  required for  all major  decisions and the  joint venture  partner has equal
control regarding the primary day-to-day operations of the venture.
 
    Interest expense increased by approximately $4.5 million. This increase  was
primarily because of the interest expense on the $150 million of unsecured notes
which  the Company  issued in  September 1995. These  notes bear  interest at an
effective rate of 7.46%.
 
    As a result of  the above-mentioned items,  earnings from rental  operations
increased $5.8 million from $17.3 million for the six months ended June 30, 1995
to $23.1 million for the six months ended June 30, 1996.
 
    SERVICE  OPERATIONS.  Service Operation revenues increased from $8.2 million
to $9.5 million for the  six months ended June 30,  1996 as compared to the  six
months ended June 30, 1995 primarily as a result of increases in maintenance fee
revenue  because of  winter weather  conditions and  construction management fee
revenue because of an increase in construction volume.
 
    Service Operation expenses increased from  $5.2 million to $6.7 million  for
the  six months ended June 30, 1996 as compared to the six months ended June 30,
1995 primarily as a  result of (i) an  increase in operating expenses  resulting
from the overall growth of the Company and (ii) a decrease in costs allocated to
the  Rental Operations segment because of a reduction in development and leasing
activity in the  Company's owned properties  for the six  months ended June  30,
1996.
 
    As  a result of the above-mentioned  items, earnings from Service Operations
decreased slightly from $3.0  million to $2.8 million  for the six months  ended
June 30, 1995 and 1996, respectively.
 
    OTHER INCOME (EXPENSE).  Interest income decreased from $901,000 for the six
months  ended June 30, 1995  to $613,000 for the six  months ended June 30, 1996
primarily as a result of the temporary short-term investment of excess  proceeds
from  an equity offering in May 1995 which resulted in approximately $35 million
of excess cash being invested through June 30, 1995.
 
    During the six months ended June 30, 1996, the Company sold a 251,000 square
foot corporate headquarters facility that  it recently completed for John  Alden
Life Insurance Company in Miami, Florida. The project was sold for approximately
$32.9  million pursuant to  the purchase option contained  in John Alden's lease
agreement. The Company recognized  a gain of approximately  $1.6 million on  the
sale.
 
    NET  INCOME.  Net  income for the six  months ended June  30, 1996 was $21.9
million compared to net income  of $15.7 million for  the six months ended  June
30, 1995. This increase results primarily from the operating result fluctuations
in  rental and  service operations  and earnings  from property  sales explained
above.
 
LIQUIDITY AND CAPITAL RESOURCES
 
    Net cash provided by operating  activities totaling $39.1 million and  $40.8
million  for  the  six  months  ended  June  30,  1996  and  1995, respectively,
represents the primary source of liquidity to fund distributions to shareholders
(including holders of the Depository Shares and the Series A Preferred  Shares),
unitholders  and  the  other  minority interests  and  to  fund  recurring costs
associated with the renovation and  re-letting of the Company's properties.  The
primary  reason for the decrease in net cash provided by operating activities is
the timing of cash  receipts and payments related  to the Company's  third-party
construction contracts.
 
                                      S-18
<PAGE>
Excluding  the  impact of  these construction  contracts,  net cash  provided by
operating activities increased from $29.4 million for the six months ended  June
30,  1995 to $42.4 million for the six months ended June 30, 1996. This increase
is primarily a result, as discussed above under "Results of Operations," of  the
increase  in net income resulting from the expansion of the in-service portfolio
through development and acquisitions of additional rental properties.
 
    Net cash  used by  investing activities  totaling $93.6  million and  $114.4
million  for  the  six  months  ended  June  30,  1996  and  1995, respectively,
represents the investment  of funds by  the Company to  expand its portfolio  of
rental  properties through the development  and acquisition of additional rental
properties net of proceeds  received from earnings  from property sales.  During
the  six months ended June 30, 1996, the Company sold two properties and a small
parcel of land for  net proceeds of  $35.5 million. The sale  of the John  Alden
Miami  building accounted  for $32.9 million  of these proceeds.  In 1995, $98.2
million was invested  in the  development and acquisition  of additional  rental
properties.  In  1996,  the investment  in  the development  and  acquisition of
additional rental properties increased to $125.9 million. Included in the $125.9
million of  net  cash used  by  investing  activities for  the  development  and
acquisition of rental properties for the six months ended June 30, 1996 is $53.3
million  related to the acquisition of  eight suburban office buildings totaling
782,000 gross square feet in Cleveland, Ohio. The purchase price of these  eight
buildings  was approximately $76 million which  included the assumption of $23.1
million of mortgage debt. The buildings were 99% leased in the aggregate and are
primarily located in  a prime  submarket on  Cleveland's southside  which has  a
vacancy  rate of  less than  5%. The  acquisition included  the purchase  of the
operations of  an  established  Cleveland property  management  and  development
company  that allowed the Company to immediately  have a presence in the market.
This  acquisition  positions  the  Company  to  immediately  pursue   additional
industrial  and  suburban office  development  and acquisition  opportunities in
Cleveland. Also included in  net cash provided by  investing activities for  the
six  months ended June 30, 1996 is  the receipt of approximately $4.9 million of
escrow deposits related to one of the Company's mortgage loans classified as net
cash provided from other deferred costs and other assets.
 
    Net cash provided by financing activities totaling $68.6 million for the six
months ended June 30, 1995 is comprised  mainly of proceeds from an offering  of
Common  Stock in May 1995 net  of distributions to shareholders and unitholders.
In 1996, the Company  received $126.1 million from  an offering of Common  Stock
and  the  dividend  reinvestment  plan  which  was  used  to  pay  down  amounts
outstanding on the unsecured line of credit.
 
    In March 1994, the  Company obtained a $60  million secured credit  facility
which  was available  to fund development  and acquisition  of additional rental
properties and to provide working capital as needed. In April 1995, the  Company
replaced the secured line of credit with a $100 million unsecured line of credit
which  matures  in  April  1998.  In January  1996,  the  Company  increased the
unsecured line of credit to $150 million and reduced the borrowing rate to LIBOR
plus 1.625%. In July 1996, the borrowing rate was further reduced to LIBOR  plus
1.50%  as a result of an increase  in the Company's investment grade debt rating
from Moody's Rating  Agency. The Company  also has a  demand $7 million  secured
revolving  credit facility which  is available to  provide working capital. This
facility bears interest payable at the 30-day LIBOR rate plus .75%.
 
    The Company currently has on file two Form S-3 Registration Statements  with
the  Securities and Exchange Commission (the "Shelf Registrations") which, after
completion of the  Offering, will have  remaining availability of  approximately
$520 million to issue additional common stock, preferred stock or unsecured debt
securities. The Company intends to issue additional securities under these Shelf
Registrations  as capital needs arise to fund the development and acquisition of
additional rental properties. It is  the Company's policy to incur  indebtedness
only  at  the  Operating  Partnership  level.  See  "The  Company  --  Financing
Strategy."
 
    The Company  intends  to  maintain a  conservative  capital  structure.  The
Company's  debt to total market capitalization ratio at June 30, 1996 was 30.3%,
compared to 33.9% at December 31, 1995. Following the
 
                                      S-19
<PAGE>
Offering, the Company's debt to total market capitalization ratio will be  27.6%
based  on a market price of the Company's Common Stock of $30.50 per share and a
market price of the Series A  Preferred Shares of $250.00 per share  (equivalent
to  $25.00 per  Depositary Share). Assuming  completion of the  Offering and the
repayment of the $59.6 million of mortgage debt, the pro forma ratio of earnings
to combined fixed charges and preferred stock dividends for the six months ended
June 30, 1996 would have been  1.95 to one and the  pro forma ratio of EBIDA  to
combined fixed charges and preferred stock dividends would have been 2.75 to one
for the six months ended June 30, 1996.
 
    The  total  debt outstanding  at June  30, 1996  consists of  notes totaling
$431.9 million  with a  weighted  average interest  rate  of 7.55%  maturing  at
various  dates through 2018. The Company has  $150 million of unsecured debt and
$281.9 million of secured debt outstanding at June 30, 1996. Scheduled principal
amortization of such debt totaled $1.0 million for the six months ended June 30,
1996.
 
    Following is a summary of  the scheduled future amortization and  maturities
of  the  Company's indebtedness  after  reflecting the  use  of proceeds  of the
Offering and the issuance of $40.0 million of investment-grade Medium-Term Notes
in July 1996 (in thousands):
 
<TABLE>
<CAPTION>
                             REPAYMENTS
                ------------------------------------   WEIGHTED AVERAGE
                 SCHEDULED                             INTEREST RATE OF
     YEAR       AMORTIZATION  MATURITIES    TOTAL      FUTURE REPAYMENTS
- --------------  ------------  ----------  ----------  -------------------
<S>             <C>           <C>         <C>         <C>
  1996           $    1,116   $   --      $    1,116           7.92%
  1997                2,282       22,841      25,123           9.14%
  1998                2,478       45,216      47,694           7.13%
  1999                2,698       --           2,698           8.26%
  2000                2,717       44,854      47,571           7.37%
  2001                2,378       59,954      62,332           8.72%
  2002                2,590       50,000      52,590           7.37%
  2003                  252       68,216      68,468           8.48%
  2004                  273       --             273           5.20%
  2005                  300      100,000     100,300           7.51%
  Thereafter..        4,072       --           4,072           5.20%
                ------------  ----------  ----------
Total            $   21,156   $  391,081  $  412,237
                ------------  ----------  ----------
                ------------  ----------  ----------
</TABLE>
 
    The Company intends to continue to pay regular quarterly distributions  from
net  cash provided  by operating  activities. A  quarterly dividend  of $.51 per
Common Share  was declared  on  July 25,  1996  which represents  an  annualized
dividend of $2.04 per share.
 
FUNDS FROM OPERATIONS
 
    Management  believes that FFO, which is  defined by the National Association
of Real Estate Investment Trusts as net income or loss excluding gains or losses
from  debt  restructuring   and  sales   of  property   plus  depreciation   and
amortization,  and  after  adjustments  for  minority  interest,  unconsolidated
partnerships  and   joint   ventures   (adjustments   for   minority   interest,
unconsolidated  partnerships and joint ventures are calculated to reflect FFO on
the same basis), is the industry  standard for reporting the operations of  real
estate investment trusts.
 
                                      S-20
<PAGE>
    The  following table reflects  the calculation of the  Company's FFO for the
six months ended June 30 as follows (in thousands):
 
<TABLE>
<CAPTION>
                                                                          1996        1995
                                                                       ----------  -----------
<S>                                                                    <C>         <C>
Net income...........................................................  $   21,947  $    15,706
Add back:
  Depreciation and amortization......................................      15,554       10,518
  Share of joint venture depreciation and amortization...............         883          144
  Earnings from property sales.......................................      (1,604)     --
  Minority interest share of add-backs...............................      (1,869)      (1,411)
                                                                       ----------  -----------
Funds From Operations................................................  $   34,911  $    24,957
                                                                       ----------  -----------
                                                                       ----------  -----------
Cash flow provided by (used by):
  Operating activities...............................................  $   39,102  $    40,797
  Investing activities...............................................     (93,584)    (114,421)
  Financing activities...............................................      49,041       68,603
</TABLE>
 
    The increase in FFO for the six  months ended June 30, 1996 compared to  the
six  months ended June 30, 1995  results primarily from the increased in-service
rental property portfolio as discussed above under "Results of Operations."  The
following  table indicates components of such growth  for each of the six months
ended June 30 as follows (in thousands):
 
<TABLE>
<CAPTION>
                                                                           1996        1995
                                                                        ----------  ----------
<S>                                                                     <C>         <C>
Rental operations:
  Original portfolio..................................................  $   30,547  $   29,816
  Development.........................................................       8,539       4,128
  Acquisitions........................................................      12,653       4,144
  Investments in unconsolidated companies.............................       3,430         613
  Interest expense....................................................     (14,617)    (10,053)
  Amortization of deferred financing fees.............................        (603)       (585)
                                                                        ----------  ----------
    Net rental operations.............................................      39,949      28,063
Service operations, net of minority interest..........................       2,349       2,537
Minority interest of unitholders......................................      (3,486)     (3,374)
Other, net............................................................      (2,032)       (858)
Minority interest share of add-backs..................................      (1,869)     (1,411)
                                                                        ----------  ----------
  Funds From Operations...............................................  $   34,911  $   24,957
                                                                        ----------  ----------
                                                                        ----------  ----------
</TABLE>
 
    In March  1995, NAREIT  issued  a clarification  of  its definition  of  FFO
effective  for  years  beginning  after  December  31,  1995.  The clarification
provides that  amortization  of deferred  financing  costs and  depreciation  of
non-rental  real estate assets are  no longer to be added  back to net income in
arriving at FFO. The  Company adopted these changes  effective January 1,  1996,
and  the calculation  of FFO  for the six  months ended  June 30,  1995 has been
revised accordingly.
 
    The calculation of FFO for the six months ended June 30, 1995 has also  been
revised  to conform with the  presentation of FFO for  the six months ended June
30, 1996 which excludes amounts attributable to minority interests.
 
    While management believes  that FFO  is the  most relevant  and widely  used
measure  of the Company's operating performance,  such amount does not represent
cash  flow  from  operations  as   defined  by  generally  accepted   accounting
principles,  should not  be considered  as an  alternative to  net income  as an
indicator of the Company's operating performance, and is not indicative of  cash
available to fund all cash flow needs.
 
                                      S-21
<PAGE>
                                   PROPERTIES
 
GENERAL
 
    The  Company owns a  diversified portfolio of  properties which includes (i)
the in-service  Properties,  consisting of  220  industrial, office  and  retail
properties  located in  Indiana, Ohio, Illinois,  Michigan, Tennessee, Kentucky,
Wisconsin  and  Missouri;  (ii)  14  buildings  and  three  building  expansions
currently  under development;  and (iii)  the Land,  consisting of approximately
1,175 acres  of  unencumbered land  for  future development  in  Indiana,  Ohio,
Missouri,  Illinois, Kentucky, and Tennessee. The Company owns the entire equity
interest in 168 of the Properties,  including property under development, and  a
partial  interest  in  the  remainder  of  the  Properties.  The  Properties are
comprised of a broad range of product  types which include bulk and medium  bulk
warehouse   and   distribution  facilities,   light   manufacturing  facilities,
multi-tenant flex space  buildings, suburban office  buildings, downtown  office
buildings,  and neighborhood, power and  community shopping centers. The Company
believes that its Properties are of the highest quality available to tenants  in
its   markets.  The  total  square  footage  of  the  in-service  Properties  is
approximately 23.2 million, consisting of approximately 15.9 million square feet
of industrial space, approximately 5.7 million  square feet of office space  and
approximately  1.6 million square feet of retail space. The total square footage
of the 14 buildings and three building expansions currently under development is
approximately 3.4 million square feet,  consisting of approximately 2.2  million
square  feet of  industrial space, approximately  783,000 square  feet of office
space and  approximately  445,000  square  feet of  retail  space.  The  current
development  projects are 74% leased  as of June 30,  1996. The total annual Net
Effective Rental income of the Properties based upon tenants in occupancy as  of
June  30, 1996 is  approximately $132.7 million, with  $57.0 million relating to
the industrial Properties, $62.0 million  relating to the office Properties  and
$13.7  million  relating  to  the  retail  Properties.  At  June  30,  1996, the
Properties were 92.1% leased.
 
    The following tables provide an overview of the Properties.
 
           SQUARE FOOTAGE AND ANNUAL NET EFFECTIVE RENT OF PROPERTIES
                       (IN THOUSANDS, EXCEPT PERCENTAGES)
 
<TABLE>
<CAPTION>
                                                        SQUARE FEET                                       PERCENT OF
                                     -------------------------------------------------      ANNUAL          ANNUAL
                                                                            PERCENT OF   NET EFFECTIVE   NET EFFECTIVE
PRIMARY MARKET                       INDUSTRIAL   OFFICE   RETAIL   OVERALL  OVERALL       RENT (1)          RENT
- -----------------------------------  ----------   ------   ------   ------  ----------   -------------   -------------
                                                            (IN THOUSANDS, EXCEPT PERCENTAGES)
<S>                                  <C>          <C>      <C>      <C>     <C>          <C>             <C>
Indianapolis.......................    10,176      1,341      194   11,711      50%        $ 49,628           37%
Cincinnati.........................     3,637      2,135      621    6,393      28           40,937           31
Columbus...........................       960        888      293    2,141       9           15,748           12
Cleveland..........................     --           644     --        644       3            8,450            6
Nashville..........................       562       --       --        562       2            3,632            3
St. Louis..........................     --           463     --        463       2            5,161            4
Detroit............................     --           245     --        245       1            2,845            2
Other (2)..........................       562       --        498    1,060       5            6,345            5
                                     ----------   ------   ------   ------   -----       -------------       ---
    Total..........................    15,897      5,716    1,606   23,219     100%        $132,746          100%
                                     ----------   ------   ------   ------   -----       -------------       ---
                                     ----------   ------   ------   ------   -----       -------------       ---
 
    Percent of total square feet...         68%      25%       7%
                                     ----------   ------   ------
                                     ----------   ------   ------
</TABLE>
 
- ------------------------
(1) Represents annual  Net Effective Rent  due from tenants  in occupancy as  of
    June 30, 1996.
 
(2)  Represents properties not  located in the  Company's primary markets. These
    properties are located in other midwestern markets
 
                                      S-22
<PAGE>
                             SUMMARY OF PROPERTIES
                       (IN THOUSANDS, EXCEPT PERCENTAGES)
 
<TABLE>
<CAPTION>
                                                                                            PERCENT
                                                                              ANNUAL       OF TOTAL
                                                               PERCENT         NET       NET EFFECTIVE    OCCUPANCY
                                                  SQUARE      OF TOTAL      EFFECTIVE       ANNUAL           AT
TYPE OF PROPERTY                                   FEET      SQUARE FEET     RENT (1)      RENT (1)     JUNE 30, 1996
- -----------------------------------------------  ---------  -------------  ------------  -------------  -------------
<S>                                              <C>        <C>            <C>           <C>            <C>
Industrial.....................................     15,897           68%    $   57,033            43%          91.1%
Office.........................................      5,716           25         62,038            47           94.8%
Retail.........................................      1,606            7         13,675            10           93.0%
                                                 ---------        -----    ------------        -----
    Total......................................     23,219          100%    $  132,746           100%          92.1%
                                                 ---------        -----    ------------        -----
                                                 ---------        -----    ------------        -----
</TABLE>
 
- ------------------------
(1) Represents annual  Net Effective Rent  due from tenants  in occupancy as  of
    June 30, 1996.
 
    The  following table sets forth the aggregate average percent leased for all
of the Properties during the indicated periods.
 
                               AVERAGE OCCUPANCY
                                (ALL PROPERTIES)
 
<TABLE>
<CAPTION>
                                                                                SQUARE FEET      AVERAGE
                                     YEAR                                        AVAILABLE      OCCUPANCY
- ------------------------------------------------------------------------------  ------------  -------------
<S>                                                                             <C>           <C>
Through June 30, 1996.........................................................    23,218,884        93.7%
1995..........................................................................    20,072,666        95.1%
1994..........................................................................    12,894,603        93.8%
1993..........................................................................    10,864,245        92.1%
</TABLE>
 
                                      S-23
<PAGE>
    The following table shows lease expirations  for leases in place as of  June
30,  1996 for each of the ten years beginning with the remainder of 1996 for the
Properties, assuming none of the tenants exercises early termination or  renewal
options.
 
                               LEASE EXPIRATIONS
                                (ALL PROPERTIES)
 
<TABLE>
<CAPTION>
                          NET
                       RENTABLE                 ANNUAL NET    PERCENT OF
                       AREA (IN    ANNUAL NET    EFFECTIVE    ANNUAL NET    PERCENT OF
                          SQ.       EFFECTIVE    RENT PER     EFFECTIVE    TOTAL LEASED
                         FT.)         RENT        SQ. FT.        RENT        SQ. FT.
 YEAR OF   NUMBER OF    SUBJECT       UNDER        UNDER     REPRESENTED   REPRESENTED
  LEASE     LEASES    TO EXPIRING   EXPIRING     EXPIRING    BY EXPIRING   BY EXPIRING
EXPIRATION EXPIRING     LEASES     LEASES (1)   LEASES (1)      LEASES        LEASES
- ---------  ---------  -----------  -----------  -----------  ------------  ------------
                          (IN          (IN
                      THOUSANDS)   THOUSANDS)
<S>        <C>        <C>          <C>          <C>          <C>           <C>
  1996           184       1,163    $   6,104    $    5.25         4.60%         5.44%
  1997           280       2,082       13,790    $    6.62        10.39          9.73
  1998           292       3,031       16,549    $    5.46        12.47         14.17
  1999           256       2,804       17,392    $    6.20        13.10         13.11
  2000           202       2,646       17,109    $    6.47        12.89         12.37
  2001           172       2,645       14,496    $    5.48        10.92         12.37
  2002            47         839        6,993    $    8.33         5.27          3.92
  2003            23         257        2,826    $   11.00         2.13          1.20
  2004            18         968        4,522    $    4.67         3.41          4.53
  2005            40       1,372       10,323    $    7.52         7.78          6.41
2006 and          52       3,584       22,642    $    6.32        17.04         16.75
thereafter
           ---------  -----------  -----------                   ------        ------
  TOTAL        1,566      21,391    $ 132,746    $    6.21       100.00%       100.00%
           ---------  -----------  -----------                   ------        ------
           ---------  -----------  -----------                   ------        ------
</TABLE>
 
- ------------------------
(1)  Represents annual Net  Effective Rent due  from tenants in  occupancy as of
    June 30, 1996.
 
INDUSTRIAL PROPERTIES
 
    The 132  industrial  Properties  are  primarily  located  in  industrial  or
business  parks that have been  developed by the Company  and consist of 87 bulk
distribution facilities and 45 service  center facilities. Approximately 80%  of
the   square  footage  of  the  industrial   Properties  is  contained  in  bulk
distribution facilities. The bulk distribution facilities accommodate the  needs
of  large warehouse and distribution users with ceiling clear heights of 20 feet
and more while providing leased space  to many large tenants including users  of
more  than 500,000 square feet. The service  center facilities are also known as
flex buildings or light industrial properties which generally have 12 to 18 foot
ceiling heights and  a combination of  drive-up and dock  loading access.  These
service  center facilities  accommodate users of  1,200 square feet  and up. The
diversity of  the industrial  buildings  allows the  Company  to cater  to  many
segments  of the industrial  market and renders the  Company less dependent upon
any specific market segment.  Over 90% of the  industrial Properties are in  the
Company's  primary markets of Indianapolis, Cincinnati and Columbus. Over 80% of
the square footage of the industrial Properties was constructed or acquired  and
renovated by the Company in the last 10 years.
 
                                      S-24
<PAGE>
    The  following table sets forth the aggregate average percent leased and Net
Effective Rent per leased square foot  for the industrial Properties during  the
indicated periods.
 
                     AVERAGE OCCUPANCY AND AVERAGE RENTALS
                            (INDUSTRIAL PROPERTIES)
 
<TABLE>
<CAPTION>
                                                                                                   NET EFFECTIVE
                                                                SQUARE FEET        AVERAGE        RENT PER LEASED
                            YEAR                                 AVAILABLE        OCCUPANCY       SQUARE FOOT (1)
- ------------------------------------------------------------  ---------------   --------------   -----------------
<S>                                                           <C>               <C>              <C>
Through June 30, 1996.......................................       15,897,189       93.4%            $3.86(2),(3)
1995........................................................       13,692,461       96.2%            $3.93(3)
1994........................................................        7,622,627       95.5%            $4.05
1993........................................................        6,235,835       93.2%            $4.06
</TABLE>
 
- ------------------------
(1) Calculated as the Net Effective Rent for the indicated period divided by the
    average total square feet under lease during the same period.
 
(2)  During 1996, the  Company has renewed  81% of its  industrial leases up for
    renewal. The rental  rate of  the 493,000  square feet  renewed during  this
    period increased 12.0% for the renewal period as compared to the prior lease
    term.  During this  same period,  the Company  leased an  additional 502,000
    square feet in the in-service Properties  at a Net Effective Rental rate  of
    $4.61 per square foot.
 
(3)  The average Net Effective Rent per leased square foot decreased in 1996 and
    1995 because the increase in  square footage available relates primarily  to
    bulk  warehouse space which provides a  lower average Net Effective Rent per
    leased square foot.
 
    The following table shows lease expirations  for leases in place as of  June
30,  1996 for each of the ten years beginning with the remainder of 1996 for the
industrial Properties, assuming none of the tenants exercises early  termination
or renewal options.
 
                               LEASE EXPIRATIONS
                            (INDUSTRIAL PROPERTIES)
 
<TABLE>
<CAPTION>
                          NET
                       RENTABLE                ANNUAL NET   PERCENT OF    PERCENT OF
                       AREA (IN                EFFECTIVE    ANNUAL NET       TOTAL
                       SQ. FT.)   ANNUAL NET    RENT PER     EFFECTIVE      LEASED
             NUMBER     SUBJECT    EFFECTIVE    SQ. FT.        RENT         SQ. FT.
 YEAR OF       OF         TO      RENT UNDER     UNDER      REPRESENTED   REPRESENTED
  LEASE      LEASES    EXPIRING    EXPIRING     EXPIRING    BY EXPIRING   BY EXPIRING
EXPIRATION  EXPIRING    LEASES    LEASES (1)   LEASES (1)     LEASES        LEASES
- ----------  --------   ---------  -----------  ----------   -----------   -----------
                          (IN         (IN
                       THOUSANDS) THOUSANDS)
<S>         <C>        <C>        <C>          <C>          <C>           <C>
   1996        83          941    $    4,024     $ 4.28        7.06%         6.50%
   1997       111        1,374         6,051     $ 4.40       10.61          9.49
   1998       121        2,270         8,507     $ 3.75       14.92         15.68
   1999       115        1,952         8,290     $ 4.25       14.54         13.48
   2000        86        1,872         7,305     $ 3.90       12.81         12.93
   2001        77        2,047         8,091     $ 3.95       14.19         14.14
   2002        14          321         1,418     $ 4.42        2.49          2.22
   2003         8           73           657     $ 9.00        1.15          0.50
   2004        11          865         3,344     $ 3.87        5.86          5.97
   2005        11          703         2,555     $ 3.63        4.48          4.85
 2006 and      15        2,062         6,791     $ 3.29       11.89         14.24
thereafter
              ---      ---------  -----------               -----------   -----------
  TOTAL       652       14,480    $   57,033     $ 3.94      100.00%       100.00%
              ---      ---------  -----------               -----------   -----------
              ---      ---------  -----------               -----------   -----------
</TABLE>
 
- ------------------------
(1)  Represents annual Net  Effective Rent due  from tenants in  occupancy as of
    June 30, 1996.
 
                                      S-25
<PAGE>
OFFICE PROPERTIES
 
    The  Company owns a portfolio of 64 office Properties, including 56 suburban
office buildings which range  from single-story to mid-rise  and are located  in
developed  business parks and  mixed use developments  with excellent interstate
access and  visibility.  Five  of  the suburban  office  buildings  are  medical
buildings,  including a single  tenant facility with  a 20 year  lease and three
multi-tenant properties attached  to hospitals.  In addition,  the Company  owns
three  downtown office buildings  consisting of two  new high-rise buildings and
one rehabilitated building.  The office  Properties are a  collection of  modern
facilities with over 85% constructed or renovated within the last ten years. The
Company  believes that these  primarily Class A office  Properties are among the
highest quality available to tenants in its markets. This diverse mix of  office
buildings is occupied by tenants spanning all segments of the office market.
 
    The  following table sets forth the aggregate average percent leased and Net
Effective Rent  per leased  square foot  for the  office Properties  during  the
indicated periods.
 
                       AVERAGE OCCUPANCY AND AVERAGE RENT
                              (OFFICE PROPERTIES)
 
<TABLE>
<CAPTION>
                                                                                                       NET EFFECTIVE
                                                                          SQUARE FEET     AVERAGE     RENT PER LEASED
YEAR                                                                       AVAILABLE     OCCUPANCY    SQUARE FOOT (1)
- ------------------------------------------------------------------------  -----------  -------------  ---------------
<S>                                                                       <C>          <C>            <C>
Through June 30, 1996...................................................   5,716,007         94.5%     $   11.23(2)
1995....................................................................   4,904,692         92.4%     $   11.02
1994....................................................................   3,986,629         90.7%     $   10.86
1993....................................................................   3,811,904         90.5%     $   10.91
</TABLE>
 
- ------------------------
(1) Calculated as the Net Effective Rent for the indicated period divided by the
    average total square feet under lease during the same period.
 
(2)  During  1996, the  Company  has renewed  47% of  its  office leases  up for
    renewal. The rental  rate of  the 109,000  square feet  renewed during  this
    period increased 10.1% for the renewal period as compared to the prior lease
    term.
 
                                      S-26
<PAGE>
    The  following table shows lease expirations for  leases in place as of June
30, 1996 for each of the ten years beginning with the remainder of 1996 for  the
office  Properties, assuming none of the  tenants exercises early termination or
renewal options.
 
                               LEASE EXPIRATIONS
                              (OFFICE PROPERTIES)
 
<TABLE>
<CAPTION>
                                                         ANNUAL NET   PERCENT OF    PERCENT OF
                                                         EFFECTIVE    ANNUAL NET       TOTAL
                        NET RENTABLE                      RENT PER     EFFECTIVE    LEASED SQ.
             NUMBER     AREA (IN SQ.      ANNUAL NET      SQ. FT.        RENT           FT.
 YEAR OF       OF       FT.) SUBJECT    EFFECTIVE RENT     UNDER      REPRESENTED   REPRESENTED
  LEASE      LEASES     TO EXPIRING     UNDER EXPIRING    EXPIRING    BY EXPIRING   BY EXPIRING
EXPIRATION  EXPIRING       LEASES         LEASES (1)     LEASES (1)     LEASES        LEASES
- ----------  --------   --------------   --------------   ----------   -----------   -----------
                       (IN THOUSANDS)   (IN THOUSANDS)
<S>         <C>        <C>              <C>              <C>          <C>           <C>
   1996        89            196           $ 1,825         $ 9.31         2.94%         3.62%
   1997       137            631             6,884         $10.91        11.10         11.65
   1998       134            651             6,860         $10.54        11.06         12.02
   1999       109            737             7,924         $10.75        12.77         13.60
   2000        81            654             8,429         $12.89        13.59         12.07
   2001        69            507             5,373         $10.60         8.66          9.36
   2002        26            431             4,783         $11.10         7.71          7.95
   2003        11            147             1,839         $12.51         2.96          2.71
   2004         5             89             1,042         $11.71         1.68          1.64
   2005        20            496             6,281         $12.66        10.12          9.15
 2006 and      22            879            10,798         $12.28        17.41         16.23
thereafter
              ---          -----           -------                    -----------   -----------
  TOTAL       703          5,418           $62,038         $11.45       100.00%       100.00%
              ---          -----           -------                    -----------   -----------
              ---          -----           -------                    -----------   -----------
</TABLE>
 
- ------------------------
 
(1) Represents annual  Net Effective Rent  due from tenants  in occupancy as  of
    June 30, 1996.
 
RETAIL PROPERTIES
 
    The  retail Properties, which cater to  a variety of retail markets, include
one regional shopping center, 13  neighborhood shopping centers, three  shopping
centers designed primarily to serve the business parks in which they are located
and  seven free-standing single-tenant buildings.  The regional and neighborhood
shopping centers either have well known anchor tenants such as Wal-Mart and  Pet
Food  Supermarket, or are located adjacent to  major retailers such as Kroger or
in areas  where other  large commercial  facilities draw  consumers. The  retail
Properties are generally located in upscale suburban and high growth areas.
 
    The  following table sets forth the aggregate average percent leased and Net
Effective Rent  per leased  square foot  for the  retail Properties  during  the
indicated periods.
 
                       AVERAGE OCCUPANCY AND AVERAGE RENT
                              (RETAIL PROPERTIES)
 
<TABLE>
<CAPTION>
                                                                                                       NET EFFECTIVE
                                                                          SQUARE FEET     AVERAGE     RENT PER LEASED
YEAR                                                                       AVAILABLE     OCCUPANCY    SQUARE FOOT (1)
- ------------------------------------------------------------------------  -----------  -------------  ----------------
<S>                                                                       <C>          <C>            <C>
Through June 30, 1996...................................................   1,605,688         93.4%      $    9.12(2)
1995....................................................................   1,475,513         94.7%      $    9.09
1994....................................................................   1,285,347         93.6%      $    8.96
1993....................................................................     816,506         91.2%      $    9.04
</TABLE>
 
- ------------------------
 
(1) Calculated as the Net Effective Rent for the indicated period divided by the
    average total square feet under lease during the same period.
 
                                      S-27
<PAGE>
(2)  During 1996, the Company  renewed 54% of its  retail leases up for renewal.
    The rental  rate  of the  31,000  square  feet renewed  during  this  period
    increased  12.2% for the renewal period as compared to the prior lease term.
    During this same period, the Company leased an additional 32,000 square feet
    in the in-service Properties  at a Net Effective  Rental rate of $11.14  per
    square foot.
 
    The  following table shows lease expirations for  leases in place as of June
30, 1996 for each of the ten years beginning with the remainder of 1996 for  the
retail  Properties, assuming none of the  tenants exercises early termination or
renewal options.
 
                               LEASE EXPIRATIONS
                              (RETAIL PROPERTIES)
 
<TABLE>
<CAPTION>
                                                         ANNUAL NET   PERCENT OF    PERCENT OF
                        NET RENTABLE                     EFFECTIVE    ANNUAL NET       TOTAL
                        AREA (IN SQ.                      RENT PER     EFFECTIVE    LEASED SQ.
             NUMBER     FT.) SUBJECT      ANNUAL NET      SQ. FT.        RENT           FT.
 YEAR OF       OF            TO         EFFECTIVE RENT     UNDER      REPRESENTED   REPRESENTED
  LEASE      LEASES       EXPIRING      UNDER EXPIRING    EXPIRING    BY EXPIRING   BY EXPIRING
EXPIRATION  EXPIRING       LEASES         LEASES (1)     LEASES (1)     LEASES        LEASES
- ----------  --------   --------------   --------------   ----------   -----------   -----------
                       (IN THOUSANDS)   (IN THOUSANDS)
<S>         <C>        <C>              <C>              <C>          <C>           <C>
   1996        12             26           $   255         $ 9.81         1.86%         1.74%
   1997        32             77               855         $11.10         6.25          5.16
   1998        37            111             1,183         $10.66         8.65          7.43
   1999        32            115             1,177         $10.23         8.61          7.70
   2000        35            119             1,375         $11.55        10.05          7.97
   2001        26             92             1,033         $11.23         7.55          6.16
   2002         7             88               792         $ 9.00         5.79          5.89
   2003         4             36               329         $ 9.14         2.41          2.41
   2004         2             13               136         $10.46         0.99          0.87
   2005         9            173             1,487         $ 8.60        10.87         11.59
 2006 and      15            643             5,053         $ 7.86        36.97         43.08
thereafter
              ---          -----           -------                    -----------   -----------
  TOTAL       211          1,493           $13,675         $ 9.16       100.00%       100.00%
              ---          -----           -------                    -----------   -----------
              ---          -----           -------                    -----------   -----------
</TABLE>
 
- ------------------------
(1) Represents annual  Net Effective Rent  due from tenants  in occupancy as  of
    June 30, 1996.
 
LAND
 
    Substantially  all of the approximately 1,175  acres of unencumbered Land is
located adjacent to  the Properties in  industrial or business  parks that  have
been  developed  by the  Company. Approximately  80%  of the  Land is  zoned for
industrial use, with the remainder zoned for either office or retail use. All of
the Land is unencumbered, has available to it appropriate utilities and is ready
for immediate development.  The Company believes  that approximately 15  million
square  feet  of commercial  development  can be  constructed  on the  Land. The
Company believes that the Land gives it a competitive advantage over other  real
estate companies operating in its markets.
 
                                      S-28
<PAGE>
                                   MANAGEMENT
 
    The directors and senior officers of the Company are as follows:
 
<TABLE>
<CAPTION>
          NAME                 AGE                            PRINCIPAL OCCUPATIONS AND POSITIONS
- -------------------------      ---      --------------------------------------------------------------------------------
<S>                        <C>          <C>
John W. Wynne                      63   Director and Chairman of the Board.
Thomas L. Hefner                   49   Director and President and Chief Executive Officer.
Daniel C. Staton                   43   Director and Executive Vice President and Chief Operating Officer.
Darell E. Zink, Jr.                50   Director and Executive Vice President, Chief Financial Officer.
Geoffrey Button                    47   Director; Independent real estate consultant.
Ngaire E. Cuneo                    45   Director; Executive Vice President, Corporate Development, Conseco, Inc.
Howard L. Feinsand                 48   Director; Managing Director, Citicorp North America, Inc.
L. Ben Lytle                       49   Director; President and Chief Executive Officer of Associated Insurance
                                         Companies, Inc.
John D. Peterson                   63   Director; Chairman and Chief Executive Officer of City Securities Corporation.
James E. Rogers                    48   Director; Vice Chairman, President and Chief Executive Officer of CINergy.
Jay J. Strauss                     60   Director; Chairman and Chief Executive Officer of Regent Realty Group, Inc.
Gary A. Burk                       44   President of Construction Services and Executive Vice President of Duke
                                         Services, Inc.
Ross C. Farro                      52   Vice President, Cleveland Group.
Robert D. Fessler                  38   Vice President, Ohio Industrial Group.
John R. Gaskin                     35   Vice President, General Counsel and Secretary.
Richard W. Horn                    38   Vice President of Acquisitions.
Donald J. Hunter                   37   Vice President, Columbus Group.
Steven R. Kennedy                  39   Vice President of Construction Services.
Wayne H. Lingafelter               37   Vice President, Indiana Office Group.
William E. Linville, III           41   Vice President, Indiana Industrial Group.
David R. Mennel                    42   General Manager of Services Operations and President of Duke Services, Inc.
David P. Minton                    38   Vice President, St. Louis Group.
Michael L. Myrvold                 40   Vice President, Retail Group.
John M. Nemecek                    41   President of Asset and Property Management.
Dennis D. Oklak                    42   Vice President and Treasurer.
Jeffrey G. Tulloch                 51   Vice President and General Manager, Cincinnati Group.
</TABLE>
 
                                      S-29
<PAGE>
         DESCRIPTION OF SERIES A PREFERRED SHARES AND DEPOSITARY SHARES
 
    This  description of the  particular terms of the  Series A Preferred Shares
and the  Depositary  Shares  offered  hereby  supplements,  and  to  the  extent
inconsistent  therewith  replaces,  the  description of  the  general  terms and
provisions of  the Preferred  Shares  and Depositary  Shares  set forth  in  the
accompanying Prospectus, to which description reference is hereby made.
 
GENERAL
 
    The  Company is authorized  to issue up to  5,000,000 preferred shares, $.01
par value  per share  ("Preferred Shares"),  in one  or more  series, with  such
designations,  powers, preferences and  rights of the shares  of such series and
the qualifications,  limitations or  restrictions  thereon, including,  but  not
limited  to, the fixing of the  distribution rights, distribution rate or rates,
conversion rights, voting rights and terms of redemption (including sinking fund
provisions), the redemption price or prices, and the liquidation preferences, in
each case, if any,  as the Board  of Directors of the  Company may determine  by
adoption of an applicable amendment (a "Designating Amendment") to the Company's
Amended   and   Restated   Articles   of   Incorporation   (the   "Articles   of
Incorporation"), without any  further vote  or action by  the shareholders.  See
"Description of Preferred Stock -- Terms" in the accompanying Prospectus.
 
    On  August 8, 1996, a form  of Designating Amendment was adopted determining
the terms of a series  of preferred shares consisting  of up to 460,000  shares,
designated     % Series A  Cumulative Redeemable Preferred Shares. The following
summary of the terms and  provisions of the Series  A Preferred Shares does  not
purport  to be  complete and is  qualified in  its entirety by  reference to the
pertinent  sections  of  the  Articles  of  Incorporation  and  the  Designating
Amendment  designating the Series A Preferred Shares, each of which is available
from the Company.
 
    The registrar, transfer  agent and  distributions disbursing  agent for  the
Series A Preferred Shares will be American Stock Transfer & Trust Company.
 
    Each  Depositary Share represents  a 1/10 fractional interest  in a Series A
Preferred Share. The Series A Preferred  Shares will be deposited with  American
Stock   Transfer  &   Trust  Company,   as  Depositary   (the  "Preferred  Share
Depositary"), under a Deposit Agreement  (the "Depositary Agreement") among  the
Company, the Preferred Share Depositary and the holders from time to time of the
depositary  receipts (the "Depositary  Receipts") issued by  the Preferred Share
Depositary thereunder.  The Depositary  Receipts  will evidence  the  Depositary
Shares.  Subject  to  the terms  of  the  Deposit Agreement,  each  holder  of a
Depositary Receipt evidencing  a Depositary Share  will be entitled  to all  the
rights  and preferences of  a 1/10 fractional  interest in a  Series A Preferred
Share (including  distribution, voting,  redemption and  liquidation rights  and
preferences).  See  "Description  of  Depositary  Shares"  in  the  accompanying
Prospectus.
 
    Application has been made to list the Depositary Shares on the NYSE, subject
to official notice of issuance. If so approved, trading of the Depositary Shares
on the NYSE is  expected to commence  within a 30-day period  after the date  of
initial  delivery of  the Depositary  Shares. See  "Underwriting." The  Series A
Preferred Shares will not  be so listed,  and the Company  does not expect  that
there  will be any  trading market for  the Series A  Preferred Shares except as
represented by Depositary Shares.
 
DISTRIBUTIONS
 
    Holders of the Series A Preferred Shares shall be entitled to receive,  when
and  as authorized by the Board of Directors, out of funds legally available for
the payment of distributions, cumulative cash distributions at the rate of     %
of  the liquidation preference  per annum (equivalent  to $        per annum per
Depositary Share). Distributions on the Series A Preferred Shares represented by
the Depositary Shares  offered hereby shall  accrue and be  cumulative from  the
date of original issue and shall be payable quarterly in arrears on or about the
last  day of each February, May, August and  November or, if not a business day,
the succeeding business  day (each,  a "Distribution Payment  Date"). The  first
distribution  on the  Series A  Preferred Shares  represented by  the Depositary
Shares offered hereby will be paid  on the business day succeeding November  30,
1996.  Any distribution payable on the Series A Preferred Shares for any partial
 
                                      S-30
<PAGE>
distribution period will be computed on  the basis of a 360-day year  consisting
of  twelve 30-day months. Distributions will be  payable to holders of record as
they appear in the share records of the Company at the close of business on  the
applicable  record date, which shall  be the first day  of the calendar month in
which the  applicable  Distribution  Payment  Date  falls  or  such  other  date
designated  by  the  Board  of  Directors of  the  Company  for  the  payment of
distributions that is  not more  than 30  nor less than  10 days  prior to  such
Distribution Payment Date (each, a "Distribution Record Date").
 
    No distributions on the Series A Preferred Shares shall be authorized by the
Board  of Directors of  the Company or be  paid or set apart  for payment by the
Company at  such time  as  the terms  and provisions  of  any agreement  of  the
Company,  including any agreement  relating to its  indebtedness, prohibits such
authorization, payment  or  setting apart  for  payment or  provides  that  such
authorization,  payment or setting  apart for payment  would constitute a breach
thereof or a default  thereunder, or if such  authorization or payment shall  be
restricted  or  prohibited by  law. Covenants  in its  line of  credit agreement
provide generally that the Company may not pay distributions in excess of 90% of
FFO in any Fiscal  Year, all as  defined in the  particular agreement, but  such
covenant  permits the Company, upon  certain circumstances, to pay distributions
in an amount necessary to maintain its qualification as a REIT. The Company does
not believe that this provision has had  or will have any adverse impact on  the
Company's  ability to  pay distributions  in respect  of the  Series A Preferred
Shares or  in the  normal course  of  business to  its shareholders  in  amounts
necessary to maintain its qualification as a REIT.
 
    Notwithstanding  the  foregoing,  distributions on  the  Series  A Preferred
Shares will accrue whether or not the Company has earnings, whether or not there
are funds legally available for the payment of such distributions and whether or
not such distributions are authorized.  Accrued but unpaid distributions on  the
Series  A Preferred Shares  will not bear  interest and holders  of the Series A
Preferred Shares will  not be entitled  to any distributions  in excess of  full
cumulative distributions as described above. See "Description of Preferred Stock
- -- Dividends" in the accompanying Prospectus.
 
    The   Operating  Partnership   will  be   required  to   make  all  required
distributions on the      %  Series A Preference  Units (which  will mirror  the
payments  of  distributions,  including accrued  and  unpaid  distributions upon
redemption, and of the liquidation preference  amount on the Series A  Preferred
Shares)  prior to any distribution of cash or assets to the holders of the Units
or to the holders  of any other interests  in the Operating Partnership,  except
for  any other  series of preference  units ranking on  a parity  with the     %
Series A Preference Units as to  dividends and/or liquidation rights and  except
for  distributions required to enable the  Company to maintain its qualification
as a REIT.
 
    Any distribution payment made on the  Series A Preferred Shares shall  first
be  credited  against  the earliest  accrued  but unpaid  distribution  due with
respect to such shares which remains payable.
 
    If, for any taxable year, the  Company elects to designate as "capital  gain
dividends"  (as defined in Section  857 of the Code),  any portion (the "Capital
Gains Amount") of the dividends paid or  made available for the year to  holders
of  all  classes of  shares (the  "Total  Dividends"), then  the portion  of the
Capital Gains  Amount  that  shall be  allocable  to  the holders  of  Series  A
Preferred  Shares shall  be the  amount that  the total  dividends paid  or made
available to the holders of the Series A Preferred Shares for the year bears  to
the Total Dividends.
 
LIQUIDATION RIGHTS
 
    In the event of any liquidation, dissolution or winding up of the affairs of
the  Company, the holders  of the Series  A Preferred Shares  are entitled to be
paid out of the assets of the Company legally available for distribution to  its
shareholders  liquidating distributions in  cash or property  at its fair market
value as determined  by the  Company's Board  of Directors  in the  amount of  a
liquidation preference of $250.00 per share (equivalent to $25.00 per Depositary
Share), plus an amount equal to any accrued and unpaid distributions to the date
of  such  liquidation, dissolution  or winding  up,  before any  distribution of
assets is made to holders of Common Stock or any other capital shares that  rank
junior to the Series A Preferred
 
                                      S-31
<PAGE>
Shares  as  to liquidation  rights.  After payment  of  the full  amount  of the
liquidating distributions to which  they are entitled, the  holders of Series  A
Preferred  Shares will have no right or claim  to any of the remaining assets of
the Company. The consolidation or merger of  the Company with or into any  other
entity or the sale, lease, transfer or conveyance of all or substantially all of
the  property or  business of the  Company shall  not be deemed  to constitute a
liquidation, dissolution or winding up  of the Company. For further  information
regarding the rights of the holders of the Series A Preferred Shares and related
Depositary  Shares  upon  the  liquidation, dissolution  or  winding  up  of the
Company, see  "Description of  Preferred Stock  -- Liquidation  Preference"  and
"Description of Depositary Shares -- Liquidation Preference" in the accompanying
Prospectus.
 
REDEMPTION
 
    The  Series A Preferred Shares are not  redeemable prior to August 31, 2001.
On and after August 31, 2001, the Company,  at its option upon not less than  30
nor  more than 60 days' written notice, may redeem the Series A Preferred Shares
(and the Preferred Share Depositary will redeem the number of Depositary  Shares
representing  the Series A  Preferred Shares so  redeemed upon not  less than 30
days' written notice to the holders thereof),  in whole or in part, at any  time
or  from time to time, at a redemption price of $250.00 per share (equivalent to
$25.00 per Depositary Share), plus all accrued and unpaid distributions  thereon
to  the date fixed for redemption  (except as provided below), without interest,
to the  extent the  Company  will have  funds  legally available  therefor.  The
redemption  price  of the  Series  A Preferred  Shares  (other than  any portion
thereof consisting of accrued and unpaid distributions) may be paid solely  from
the  sale proceeds of other capital stock of  the Company and not from any other
source. For purposes of the preceding sentence, "capital stock" means any common
stock, preferred stock,  depositary shares, interests,  participation, or  other
ownership  interests  (however  designated)  and  any  rights  (other  than debt
securities convertible into or exchangeable for equity securities) or options to
purchase any  of  the  foregoing.  Holders  of  Depositary  Receipts  evidencing
Depositary Shares to be redeemed shall surrender such Depositary Receipts at the
place  designated in such notice  and shall be entitled  to the redemption price
and any accrued and unpaid distributions payable upon such redemption  following
such  surrender. If notice of redemption of any Depositary Shares has been given
and if  the funds  necessary for  such redemption  have been  set aside  by  the
Company  in trust  for the benefit  of the  holders of any  Depositary Shares so
called for redemption,  then from  and after the  redemption date  distributions
will  cease to accrue on such Depositary Shares, such Depositary Shares shall no
longer be deemed outstanding and all rights  of the holders of such shares  will
terminate,  except the right to receive the  redemption price. If fewer than all
of the outstanding Depositary Shares are  to be redeemed, the Depositary  Shares
to  be redeemed  shall be  selected pro  rata (as  nearly as  may be practicable
without creating fractional Depositary Shares) or by any other equitable  method
determined by the Company. See "Description of Preferred Stock -- Redemption" in
the accompanying Prospectus.
 
    Notice  of redemption will be given by publication in a newspaper of general
circulation in the City of New York, such publication to be made once a week for
two successive weeks commencing not less than 30 nor more than 60 days prior  to
the redemption date. A similar notice furnished by the Company will be mailed by
the  Preferred Share Depositary, postage prepaid, not less than 30 nor more than
60 days prior  to the redemption  date, addressed to  the respective holders  of
record  of  the  Depositary  Receipts evidencing  the  Depositary  Shares  to be
redeemed at their  respective addresses  as they  appear on  the share  transfer
records of the Preferred Share Depositary. No failure to give such notice or any
defect  thereto  or in  the mailing  thereof  shall affect  the validity  of the
proceedings for the redemption  of any Series A  Preferred Shares or  Depositary
Shares  except as to the holder to whom  notice was defective or not given. Each
notice shall state: (i)  the redemption date; (ii)  the redemption price;  (iii)
the  number of Series A  Preferred Shares to be  redeemed (and the corresponding
number of Depositary  Shares); (iv)  the place  or places  where the  Depositary
Receipts  evidencing the Depositary Shares are  to be surrendered for payment of
the redemption
 
                                      S-32
<PAGE>
price;  and (v) that  distributions on the  shares to be  redeemed will cease to
accrue on such redemption date. If fewer than all the Depositary Shares held  by
any  holder are  to be  redeemed, the  notice mailed  to such  holder shall also
specify the number of Depositary Shares to be redeemed from such holder.
 
    The  holders  of  Depositary  Receipts  at  the  close  of  business  on   a
Distribution  Record Date will  be entitled to  receive the distribution payable
with respect to the Depositary Shares  evidenced by such Depositary Receipts  on
the  corresponding  Distribution  Payment  Date  notwithstanding  the redemption
thereof between such Distribution Record Date and the corresponding Distribution
Payment Date or the  Company's default in the  payment of the distribution  due.
Except  as provided  above, the  Company will make  no payment  or allowance for
unpaid distributions, whether or not in arrears, on Series A Preferred Shares or
Depositary Shares to be redeemed.
 
    The Series  A Preferred  Shares have  no  stated maturity  and will  not  be
subject  to  any  sinking fund  or  mandatory redemption  provisions  (except as
provided under "-- Restrictions on Transfer" below).
 
VOTING RIGHTS
 
    In any matter in which  the Series A Preferred  Shares are entitled to  vote
(as  expressly provided  herein or  as may  be required  by law),  including any
action by written consent, each Series A Preferred Share shall be entitled to 10
votes, each of which 10 votes may  be directed separately by the holder  thereof
(or  by any  proxy or  proxies of such  holder). With  respect to  each Series A
Preferred Share, the holder  thereof may designate up  to 10 proxies, with  each
such  proxy having the right to vote a  whole number of votes (totaling 10 votes
per Series  A Preferred  Share). As  a  result, each  Depositary Share  will  be
entitled to one vote.
 
    If  distributions on the Series A Preferred Shares are in arrears for six or
more quarterly periods, whether or  not such quarterly periods are  consecutive,
holders  of the  Depositary Shares  representing the  Series A  Preferred Shares
(voting separately as  a class with  all other series  of preferred shares  upon
which  like  voting rights  have  been conferred  and  are exercisable)  will be
entitled to vote for the  election of two additional  Directors to serve on  the
Board  of Directors of  the Company until all  distribution arrearages have been
paid. For further information regarding the voting rights of the holders of  the
Series  A Preferred Shares and related  Depositary Receipts, see "Description of
Preferred Stock  -- Voting  Rights"  and "Description  of Depositary  Shares  --
Voting of the Preferred Stock" in the accompanying Prospectus.
 
CONVERSION
 
    The  Series A Preferred Shares are  not convertible into or exchangeable for
any other property or securities of the Company.
 
RESTRICTIONS ON TRANSFER
 
    For information regarding restrictions on transfer of the Series A Preferred
Shares and related  Depositary Shares,  see "Description of  Preferred Stock  --
Restrictions on Ownership" in the accompanying Prospectus.
 
                   CERTAIN FEDERAL INCOME TAX CONSIDERATIONS
 
GENERAL
 
    The  following discussion summarizes certain Federal income tax consequences
to an investor in Depositary Shares. Such discussion is based upon current  law.
The  discussion is focused  on the classification  of the Company  as a REIT and
does not address all tax considerations applicable to prospective investors, nor
does the discussion give a detailed description of any state, local, or  foreign
tax  considerations. This  discussion does  not describe  all of  the aspects of
Federal income taxation  that may be  relevant to a  prospective shareholder  in
light of his or her particular circumstances or to certain types of shareholders
 
                                      S-33
<PAGE>
(including  insurance companies, tax-exempt  entities, financial institutions or
broker dealers,  foreign  corporations  and  persons who  are  not  citizens  or
residents  of the United States) subject  to special treatment under the Federal
income tax laws. As used  in this section, the  term "Company" refers solely  to
Duke Realty Investments, Inc.
 
    EACH  PROSPECTIVE PURCHASER IS  ADVISED TO CONSULT  WITH HIS OR  HER OWN TAX
ADVISOR REGARDING THE SPECIFIC TAX CONSEQUENCES  TO HIM OR HER OF THE  PURCHASE,
OWNERSHIP  AND  SALE OF  DEPOSITARY SHARES  REPRESENTING  PREFERRED STOCK  IN AN
ENTITY ELECTING TO  BE TAXED AS  A REAL ESTATE  INVESTMENT TRUST, INCLUDING  THE
FEDERAL,  STATE AND LOCAL TAX CONSEQUENCES OF SUCH PURCHASE, OWNERSHIP, SALE AND
ELECTION AND OF POTENTIAL CHANGES IN APPLICABLE TAX LAWS.
 
REDEMPTION OF SERIES A PREFERRED SHARES AND DEPOSITARY SHARES
 
    A redemption of Series  A Preferred Shares, and  a consequent redemption  of
the  Depositary  Shares representing  such Series  A  Preferred Shares,  will be
treated under Section 302 of the Internal Revenue Code of 1986, as amended  (the
"Code"), as a distribution taxable as a dividend (to the extent of the Company's
current  and accumulated earnings  and profits) at  ordinary income rates unless
the redemption satisfies one  of the tests  set forth in  Section 302(b) of  the
Code and is therefore treated as a sale or exchange of the redeemed shares. None
of  these dividend  distributions will  be eligible  for the  dividends received
deduction for corporate shareholders. The redemption  will be treated as a  sale
or  exchange if it  (i) is "substantially disproportionate"  with respect to the
holder, (ii) results in a "complete termination" of the holder's share  interest
in  the Company,  or (iii)  is "not essentially  equivalent to  a dividend" with
respect to the holder, all within the meaning of Section 302(b) of the Code.  In
determining  whether  any  of  these  tests  have  been  met,  Depositary Shares
considered to be owned by the holder by reason of certain constructive ownership
rules set forth in the Code, as well as Depositary Shares actually owned by  the
holder,  must  generally  be  taken  into account.  If  a  particular  holder of
Depositary Shares owns (actually or constructively) no shares of Common Stock of
the Company, or an insubstantial percentage of the outstanding shares of  Common
Stock of the Company, a redemption of Depositary Shares of that holder is likely
to  qualify for sale or  exchange treatment because the  redemption would not be
"essentially equivalent to a dividend." However, because the determination as to
whether any of  the alternative  tests of  Section 302(b)  of the  Code will  be
satisfied  with respect  to any particular  holder of  Depositary Shares depends
upon the facts  and circumstances  at the time  that the  determination must  be
made,  prospective holders of Depositary Shares are advised to consult their own
tax advisors to determine such tax treatment.
 
    If a  redemption of  Depositary  Shares is  not  treated as  a  distribution
taxable  as a  dividend to a  particular holder, it  will be treated  as to that
holder as a taxable sale  or exchange. As a  result, such holder will  recognize
gain  or  loss  for  Federal income  tax  purposes  in an  amount  equal  to the
difference between (i)  the amount  of cash  and the  fair market  value of  any
property  received  (less any  portion thereof  attributable to  accumulated and
declared but unpaid dividends, which will be taxable as a dividend to the extent
of the Company's  current and accumulated  earnings and profits),  and (ii)  the
holder's  adjusted basis in the Depositary Shares for tax purposes. Such gain or
loss will be capital gain or loss if  the Depositary Shares have been held as  a
capital asset, and will be long-term gain or loss if such Depositary Shares have
been held for more than one year.
 
    If a redemption of Depositary Shares is treated as a distribution taxable as
a  dividend, the amount  of the distribution  will be measured  by the amount of
cash and the  fair market  value of  any property  received by  the holder.  The
holder's  adjusted basis in the redeemed Depositary Shares for tax purposes will
be transferred to the  holder's remaining shares of  the Company. If the  holder
owns   no  other  shares   of  the  Company,  such   basis  may,  under  certain
circumstances, be transferred to a related person or it may be lost entirely.
 
TAXATION OF THE COMPANY
 
    GENERAL.  The Company expects to continue to be taxed as a REIT for  Federal
income  tax purposes. Management believes that the Company was organized and has
operated in such a manner as to meet the
 
                                      S-34
<PAGE>
requirements for qualification and taxation as  a REIT under the Code, and  that
the  Company intends  to continue  to operate  in such  a manner.  No assurance,
however, can be given that the Company has operated or will continue to  operate
in a manner so as to remain qualified as a REIT.
 
    In  the opinion of Bose  McKinney & Evans which has  acted as counsel to the
Company ("Counsel"), assuming the Company  was organized in conformity with  and
has  satisfied the requirements  for qualification and taxation  as a REIT under
the Code for each  of its taxable  years from and including  the first year  for
which  the Company made the election to be  taxed as a REIT, and the assumptions
and representations  referred  to  below  are  true,  the  proposed  methods  of
operation  of the  Company, the Operating  Partnership and  Duke Realty Services
Limited Partnership  (the "Services  Partnership") will  permit the  Company  to
continue to qualify to be taxed as a REIT for its current and subsequent taxable
years.   This  opinion  is  based  upon  certain  assumptions  relating  to  the
organization and  operation  of  Duke  Services,  Inc.  ("DSI"),  the  Operating
Partnership  and  the  Services  Partnership  and  is  conditioned  upon certain
representations made by Company personnel  and affiliates as to certain  factual
matters  relating to  the Company's past  operations and the  intended manner of
future operation of  the Company,  the Operating Partnership,  and the  Services
Partnership. The opinion is further based upon the Company's receipt of a letter
ruling from the IRS dated September 30, 1994, which concluded that the Company's
and  the Operating Partnership's distributive shares  of the gross income of the
Services Partnership will be in proportion to their respective percentage shares
of the capital interests of the partners of the Services Partnership. Counsel is
not aware  of any  facts  or circumstances  which  are inconsistent  with  these
assumptions  and representations. Unlike a tax  ruling, an opinion of counsel is
not binding upon the IRS,  and no assurance can be  given that the IRS will  not
challenge  the status of the Company as  a REIT for Federal income tax purposes.
The Company's qualification and taxation as a REIT has depended and will  depend
upon,  among other things, the Company's ability  to meet on a continuing basis,
through ownership  of  assets,  actual  annual  operating  results,  receipt  of
qualifying  real  estate  income,  distribution levels  and  diversity  of stock
ownership, the  various qualification  tests imposed  under the  Code  discussed
below.  Counsel has not reviewed  past compliance with these  tests and will not
review  compliance  with  these  tests  on  a  periodic  or  continuing   basis.
Accordingly,  no  assurance can  be given  respecting  the satisfaction  of such
tests. See "Taxation of the Company--Failure to Qualify."
 
    The following is  a general summary  of the Code  sections which govern  the
Federal  income tax treatment of a REIT  and its shareholders. These sections of
the Code are  highly technical  and complex. This  summary is  qualified in  its
entirety   by  the   applicable  Code  provisions,   Treasury  Regulations,  and
administrative and judicial interpretations thereof as currently in effect.
 
    If the  Company qualifies  for taxation  as a  REIT and  distributes to  its
shareholders  at  least 95%  of its  REIT  taxable income,  it generally  is not
subject to  Federal corporate  income  taxes on  net  income that  it  currently
distributes to shareholders. This treatment substantially eliminates the "double
taxation"  (at the corporate and shareholder levels) that generally results from
investment in a  corporation. However, the  Company will be  subject to  Federal
income  tax as follows: (i) the Company will be taxed at regular corporate rates
on any undistributed  REIT taxable income,  including undistributed net  capital
gains;  (ii)  under certain  circumstances, the  Company may  be subject  to the
"alternative minimum tax" on its items of  tax preference, if any; (iii) if  the
Company  has net  income from  prohibited transactions  (which are,  in general,
certain sales or other dispositions of property other than foreclosure  property
held  primarily for sale to customers in  the ordinary course of business), such
income will be subject to a 100% tax; (iv) if the Company should fail to satisfy
the 75% gross income test or the 95% gross income test (as discussed below), and
has nonetheless maintained  its qualification  as a REIT  because certain  other
requirements have been met, it will be subject to a 100% tax on the gross income
attributable  to the greater of the amount by which the Company fails the 75% or
95%  test,  multiplied  by  a   fraction  intended  to  reflect  the   Company's
profitability; (v) if the Company should fail to distribute during each calendar
year  at least the sum of (1) 85% of its REIT ordinary income for such year; (2)
95% of its REIT capital gain net income for such year; and (3) any undistributed
taxable income from prior years, it would be  subject to a 4% excise tax on  the
excess of such required distribution over the amounts actually distributed; (vi)
if    the   Company   has   (1)   net    income   from   the   sale   or   other
 
                                      S-35
<PAGE>
disposition of "foreclosure property" (which  is, in general, property  acquired
by  the Company by foreclosure or otherwise on  default on a loan secured by the
property) which is held primarily for  sale to customers in the ordinary  course
of  business; or (2)  other non-qualifying income  from foreclosure property, it
will be subject to tax on such  income at the highest corporate rate; and  (vii)
if  the  Company acquires  any asset  from  a C  corporation (i.e.,  generally a
corporation subject to tax at the corporate level) in a transaction in which the
basis of the  asset in the  Company's hands  is determined by  reference to  the
basis  of the asset (or  any other property) in the  hands of the C corporation,
and the Company  recognizes gain  on the disposition  of such  asset during  the
10-year  period (the "Restriction  Period") beginning on the  date on which such
asset was acquired by  the Company, then, pursuant  to guidelines issued by  the
IRS,  the excess of the  fair market value of such  property at the beginning of
the applicable  Restriction Period  over the  Company's adjusted  basis in  such
asset as of the beginning of such Restriction Period will be subject to a tax at
the  highest regular corporate rate. The results described above with respect to
the recognition of built-in gain assume  that the Company will make an  election
pursuant  to  IRS  Notice 88-19  or  applicable future  administrative  rules or
Treasury Regulations.
 
    REQUIREMENTS FOR QUALIFICATION.  The Code  defines a REIT as a  corporation,
trust or association: (1) which is managed by one or more trustees or directors;
(2)  the beneficial ownership of which is evidenced by transferable shares or by
transferable certificates of beneficial interest; (3) which would be taxable  as
a  domestic corporation but for Sections 856  through 859 of the Code; (4) which
is neither a financial institution nor  an insurance company subject to  certain
provisions of the Code; (5) which has the calendar year as its taxable year; (6)
the beneficial ownership of which is held by 100 or more persons; (7) during the
last  half of each  taxable year not more  than 50% in  value of the outstanding
stock of which is  owned, directly or indirectly,  by five or fewer  individuals
(as  defined  in the  Code to  include  certain entities);  and (8)  which meets
certain income  and  assets tests,  described  below. The  Company  believes  it
currently satisfies requirements (1) through (7).
 
    INCOME  TESTS.  In order to qualify as  a REIT, there are three gross income
tests that must  be satisfied  annually. First, at  least 75%  of the  Company's
gross  income  (excluding gross  income from  prohibited transactions)  for each
taxable year must be derived directly or indirectly from investments relating to
real property (including "rents from real property," gain from the sale of  real
property  and, in  certain circumstances, interest)  or from  qualified types of
temporary investments.  Second,  at least  95%  of the  Company's  gross  income
(excluding gross income from prohibited transactions) for each taxable year must
be  derived from the same items which qualify  under the 75% income test or from
dividends,  interest  and  gain  from  the  sale  or  disposition  of  stock  or
securities,  or from any combination  of the foregoing. Third,  less than 30% of
the Company's gross income (including gross income from prohibited transactions)
must be derived from gain  in connection with the  sale or other disposition  of
stock  or  securities held  for less  than  one year,  property in  a prohibited
transaction, and  real  property held  for  less  than four  years  (other  than
involuntary conversions and foreclosure property).
 
    Rents  received by the Company will qualify as "rents from real property" in
satisfying the gross  income tests for  a REIT described  above only if  several
conditions (related to the relationship of the tenant to the Company, the method
of  determining the rent payable and nature of the property leased) are met. The
Company does not  anticipate receiving rents  in excess of  a de minimis  amount
that  fail to meet these  conditions. Finally, for rents  received to qualify as
"rents from real property," the Company generally must not operate or manage the
property or  furnish  or render  services  to  tenants, other  than  through  an
"independent  contractor"  that  is  adequately compensated  and  from  whom the
Company derives  no income;  provided,  however, that  the Company  may  perform
services  "usually or  customarily rendered"  in connection  with the  rental of
space for occupancy only and not otherwise considered "rendered to the occupant"
("Permissible Services").
 
                                      S-36
<PAGE>
    The Company provides certain management, development, construction and other
tenant-related services (collectively, "Real  Estate Services") with respect  to
the  Properties through the  Operating Partnership, which  is not an independent
contractor. Management believes  that the  services provided to  tenants by  the
Operating  Partnership  are  Permissible  Services. To  the  extent  services to
tenants do not constitute Permissible  Services, such services are performed  by
an independent contractor.
 
    The Company derives a portion of its income from the Operating Partnership's
interest  as a limited partner in the  Services Partnership and its ownership of
DSI which  is  a general  partner  of  the Services  Partnership.  The  Services
Partnership  receives fees for  Real Estate Services  with respect to properties
that are not owned  directly by the Operating  Partnership, which fees will  not
qualify  as  rents from  real property.  In  addition, the  Services Partnership
receives  fees  in   consideration  for  the   performance  of  management   and
administrative  services with  respect to Properties  not entirely  owned by the
Operating Partnership. All or  a portion of  such management and  administrative
fees will also not qualify as "rents from real property" for purposes of the 75%
or 95% gross income tests. Pursuant to Treasury Regulations, a partner's capital
interest   in  a  partnership  determines  its  proportionate  interest  in  the
partnership's gross income from partnership assets  for purposes of the 75%  and
95%  gross income tests. For this purpose,  the capital interest of a partner is
determined by dividing its capital account  by the sum of all partners'  capital
accounts.  Presently,  the  Operating  Partnership's  capital  interest  in  the
Services  Partnership  is  9%  and  DSI's  capital  interest  in  the   Services
Partnership  is  1%.  The  partnership  agreement  of  the  Services Partnership
provides, however, for varying allocations  of income which differ from  capital
interests,  subject  to certain  limitations on  the  aggregate amount  of gross
income which may be allocated to the Operating Partnership and DSI. The  Company
has  obtained a letter ruling from the IRS that allocations according to capital
interests are proper for applying the 75% and 95% gross income tests. Thus,  for
purposes  of  these  gross income  tests,  at present  the  Services Partnership
allocates 9% of its  gross income to  the Operating Partnership  and 1% to  DSI.
Although  certain of the  Real Estate Services fees  allocated from the Services
Partnership do not qualify  under the 75%  or 95% gross  income tests as  "rents
from  real property," the Company  believes that, at least  presently and in the
near term,  the aggregate  amount of  such fees  (and any  other  non-qualifying
income)  allocated to the Company in any taxable year will not cause the Company
to exceed the limits on non-qualifying income under the 75% or 95% gross  income
tests described above.
 
    If  the Company fails to satisfy one or  both of the 75% or 95% gross income
tests for any taxable year, it may nevertheless qualify as a REIT for such  year
if  it is  entitled to relief  under certain provisions  of the Code.  It is not
possible, however, to state  whether in all circumstances  the Company would  be
entitled  to  the  benefit of  these  relief  provisions. Even  if  these relief
provisions apply, a tax would be imposed on certain excess net income.
 
    ASSET TESTS.  In order  for the Company to  maintain its qualification as  a
REIT,  at the close  of each quarter of  its taxable year,  it must also satisfy
three tests relating to  the nature of  its assets. First, at  least 75% of  the
value of the Company's total assets must be represented by "real estate assets,"
cash,  cash items, and government  securities. Second, not more  than 25% of the
Company's total assets may be represented by securities other than those in  the
75%  assets class. Third, of  the assets held in  securities other than those in
the 75% assets  class, the value  of any  one issuer's securities  owned by  the
Company  may not exceed 5%  of the value of the  Company's total assets, and the
Company may  not  own more  than  10% of  any  one issuer's  outstanding  voting
securities  (excluding securities of a qualified  REIT subsidiary [as defined in
the Code] or another REIT).
 
    The Company is deemed to directly  hold its proportionate share of all  real
estate and other assets of the Operating Partnership and should be considered to
hold  its  proportionate  share of  all  assets  deemed owned  by  the Operating
Partnership and  DSI through  their ownership  of partnership  interests in  the
Services  Partnership and other  partnerships. As a  result, management believes
that more than 75% of the Company's assets are real estate assets. In  addition,
management   does  not   expect  the   Company  to   hold  (1)   any  securities
 
                                      S-37
<PAGE>
representing more than 10% of any one issuer's voting securities other than DSI,
which is  a qualified  REIT subsidiary,  nor (2)  securities of  any one  issuer
exceeding  5%  of  the  value  of  the  Company's  gross  assets  (determined in
accordance with generally accepted accounting principles).
 
    ANNUAL DISTRIBUTION REQUIREMENTS.   The Company,  in order to  qualify as  a
REIT, generally must distribute dividends (other than capital gain dividends) to
its  shareholders in an amount at  least equal to (A) the  sum of (i) 95% of the
Company's "REIT taxable income" (computed  without regard to the dividends  paid
deduction  and the Company's net  capital gain), and (ii)  95% of the net income
(after tax), if  any, from foreclosure  property, minus (B)  the sum of  certain
items  of non-cash  income. In  addition, if the  Company disposes  of any asset
during its Restriction  Period, the Company  will be required  to distribute  at
least  95%  of  the  built-in  gain  (after  tax),  if  any,  recognized  on the
disposition of such asset. Such distributions  must be paid in the taxable  year
to  which they relate, or  in the following taxable  year if declared before the
Company timely files its tax return for such  year and if paid on or before  the
first  regular dividend payment  after such declaration. To  the extent that the
Company does not distribute all of its net capital gain or distributes at  least
95%,  but less than 100%, of its "REIT  taxable income," as adjusted, it will be
subject to tax on the undistributed amount at regular capital gains and ordinary
corporate tax  rates. Furthermore,  if  the Company  should fail  to  distribute
during  each calendar  year at  least the sum  of (i)  85% of  its REIT ordinary
income for such  year, (ii) 95%  of its REIT  net capital gain  income for  such
year, and (iii) any undistributed taxable income from prior periods, the Company
will  be subject to  regular capital gains  and ordinary corporate  tax rates on
undistributed income and also may be subject to a 4% excise tax on undistributed
income in certain events. The Company believes  that it has made and intends  to
continue   to  make  timely  distributions  sufficient  to  satisfy  the  annual
distribution requirements.  In this  regard, the  partnership agreement  of  the
Operating  Partnership authorizes the Company, as  general partner, to take such
steps as may be  necessary to cause the  Operating Partnership to distribute  to
its  partners  an  amount  sufficient  to  permit  the  Company  to  meet  these
distribution requirements. It is possible, however, that the Company, from  time
to  time, may not  have sufficient cash or  other liquid assets  to meet the 95%
distribution  requirement  due  primarily  to   the  expenditure  of  cash   for
nondeductible  expenses such as principal  amortization or capital expenditures.
In such event, the Company may borrow or may cause the Operating Partnership  to
arrange  for short-term  or other  borrowing to  permit the  payment of required
dividends or pay dividends in the form of taxable stock dividends. If the amount
of nondeductible expenses exceeds non-cash deductions, the Operating Partnership
may refinance its indebtedness to reduce principal payments and borrow funds for
capital expenditures.
 
    FAILURE TO QUALIFY.  If the Company fails to qualify for taxation as a  REIT
in  any  taxable  year,  the  Company will  be  subject  to  tax  (including any
applicable corporate alternative minimum tax)  on its taxable income at  regular
corporate  rates. Unless entitled to relief under specific statutory provisions,
the Company also  will be  disqualified from  taxation as  a REIT  for the  four
taxable  years following the year during which qualification was lost. It is not
possible to state whether in all circumstances the Company would be entitled  to
such statutory relief.
 
OTHER TAX CONSIDERATIONS
 
    EFFECT  OF TAX STATUS OF OPERATING  PARTNERSHIP AND SERVICES PARTNERSHIP AND
OTHER PARTNERSHIPS ON REIT QUALIFICATION.  All of the Company's investments  are
through DSI and the Operating Partnership, which in turn hold interests in other
partnerships,  including the Services Partnership. The Company believes that the
Operating Partnership, and each other partnership in which it holds an interest,
is properly treated as a partnership for tax purposes (and not as an association
taxable as a corporation). If,  however, the Operating Partnership were  treated
as  an association taxable as a corporation,  the Company would cease to qualify
as a REIT. If  the Services Partnership  or any of  the other partnerships  were
treated   as  an  association  taxable  as   a  corporation  and  the  Operating
Partnership's interest in  such partnership  exceeded 10%  of the  partnership's
voting  interests or the value of such interest  exceeded 5% of the value of the
Company's assets, the Company would cease to qualify as a REIT. Furthermore,  in
such  a situation, any partnerships treated as a corporation would be subject to
corporate income  taxes, and  distributions  from any  such partnership  to  the
Company
 
                                      S-38
<PAGE>
would  be treated as dividends,  which are not taken  into account in satisfying
the 75% gross income test described above and which therefore could make it more
difficult for the Company to meet the 75% asset test described above.
 
    TAX ALLOCATIONS WITH RESPECT TO  THE PROPERTIES.  The Operating  Partnership
was formed by way of contributions of appreciated property (including certain of
the  Properties) to the Operating Partnership. When property is contributed to a
partnership in  exchange for  an interest  in the  partnership, the  partnership
generally takes a carryover basis in that property for tax purposes equal to the
adjusted  basis of the contributing partner in the property, rather than a basis
equal to the fair market value of the property at the time of contribution (this
difference is referred to as  "Book-Tax Difference"). The partnership  agreement
of  the Operating  Partnership requires  allocations of  income, gain,  loss and
deduction with respect to a contributed Property be made in a manner  consistent
with  the  special rules  of  Section 704(c)  of  the Code  and  the regulations
thereunder, which will tend to  eliminate the Book-Tax Differences with  respect
to  the  contributed  Properties over  the  life of  the  Operating Partnership.
However, because of certain technical limitations, the special allocation  rules
of  Section 704(c) may not always entirely eliminate the Book-Tax Differences on
an annual basis  or with respect  to a  specific taxable transaction  such as  a
sale.  Thus, the carryover basis  of the contributed Properties  in the hands of
the Operating Partnership  could cause  the Company  (i) to  be allocated  lower
amounts  of depreciation  and other  deductions for  tax purposes  than would be
allocated to the Company  if all Properties  were to have a  tax basis equal  to
their  fair market value  at the time  of contribution, and  (ii) possibly to be
allocated taxable gain in the event of a sale of such contributed Properties  in
excess  of the economic or  book income allocated to the  Company as a result of
such sale. The foregoing principles also  apply in determining the earnings  and
profits  of the Company for purposes of determining the portion of distributions
taxable as dividend income. The application of these rules over time may  result
in  a higher portion of  distributions being taxed as  dividends than would have
occurred had the  Company purchased  its interests  in the  Properties at  their
agreed values.
 
    STATE  AND LOCAL  TAXES.   The Company  or its  shareholders or  both may be
subject to  state, local  or other  taxation in  various state,  local or  other
jurisdictions,  including those in  which they transact  business or reside. The
tax treatment  in such  jurisdictions may  differ from  the Federal  income  tax
consequences discussed above.
 
    FOREIGN  SHAREHOLDERS.  The rules governing United States income taxation of
nonresident alien individuals, foreign  corporations, foreign partnerships,  and
foreign  trusts and  estates (collectively,  "Non-U.S. Shareholders")  are quite
complex. Certain distributions paid by the Company to Non-U.S. Shareholders will
be subject to  U.S. tax  withholding. Prospective  Non-U.S. Shareholders  should
consult  with their own tax  advisors to determine the  impact of Federal, state
and local income  tax laws on  an investment  in the Company,  and to  determine
their reporting requirements, if any.
 
                                      S-39
<PAGE>
                                  UNDERWRITING
 
    Subject  to the  terms and conditions  contained in the  terms agreement and
related underwriting agreement (collectively, the "Underwriting Agreement"), the
Company has agreed to sell to each of the Underwriters named below, and each  of
the  Underwriters for  whom Merrill Lynch,  Pierce, Fenner  & Smith Incorporated
("Merrill Lynch"), Dean  Witter Reynolds  Inc., A.G.  Edwards &  Sons, Inc.  and
Smith  Barney  Inc. are  acting as  representatives (the  "Representatives") has
severally agreed to purchase from the  Company, the number of Depositary  Shares
set  forth after  its name below.  The Underwriting Agreement  provides that the
obligations of the Underwriters are subject to certain conditions precedent, and
that the Underwriters will be obligated to purchase all of the Depositary Shares
if any are purchased.
 
<TABLE>
<CAPTION>
                                                                                 NUMBER OF
             UNDERWRITER                                                     DEPOSITARY SHARES
- ---------------------------------------------------------------------------  -----------------
<S>                                                                          <C>
Merrill Lynch, Pierce, Fenner & Smith
          Incorporated.....................................................
Dean Witter Reynolds Inc...................................................
A.G. Edwards & Sons, Inc...................................................
Smith Barney Inc...........................................................
                                                                             -----------------
          Total............................................................       3,000,000
                                                                             -----------------
                                                                             -----------------
</TABLE>
 
    The Representatives have advised the Company that they propose initially  to
offer the Depositary Shares to the public at the public offering price set forth
on  the cover page of this Prospectus Supplement, and to certain dealers at such
price less a concession not in excess  of $         per share. The  Underwriters
may allow, and such dealers may reallow, a discount not in excess of $        to
certain  other dealers. After  the initial public  offering, the public offering
price, concession and discount may be changed.
 
    The Company has granted  an option to  the Underwriters, exercisable  during
the  30-day period after the date of  this Prospectus Supplement, to purchase up
to 450,000 additional Depositary Shares at the price to the public set forth  on
the cover page of this Prospectus Supplement, less the underwriting discount. If
the Underwriters exercise this option, each of the Underwriters will have a firm
commitment,  subject to certain  conditions, to purchase  approximately the same
percentage thereof which the number of  Depositary Shares to be purchased by  it
shown  in the foregoing  table bears to the  3,000,000 Depositary Shares offered
hereby.
 
    The Company  has  agreed  to  indemnify  the  Underwriters  against  certain
liabilities, including liabilities under the Securities Act of 1933, as amended,
or to contribute to payments the Underwriters may be required to make in respect
thereof.
 
    Application  has been made to list the  Depositary Shares on the NYSE. If so
approved, trading of the Depositary Shares  on the NYSE is expected to  commence
within  a 30-day period after the initial delivery of the Depositary Shares. The
Representatives have advised the  Company that they intend  to make a market  in
the  Depositary Shares  prior to  the commencement of  trading on  the NYSE. The
Representatives will  have no  obligation to  make a  market in  the  Depositary
Shares,  however, and  may cease  market making  activities if  commenced at any
time.
 
    Merrill Lynch from time  to time provides  investment banking and  financial
advisory services to the Company. Merrill Lynch has also acted as representative
of  various underwriters  in connection with  public offerings  of the Company's
Common Stock and debt securities.
 
                                 LEGAL MATTERS
 
    In addition to the legal opinions referred to under "Legal Opinions" in  the
accompanying Prospectus, the description of Federal income tax matters contained
in   this   Prospectus   Supplement  entitled   "Certain   Federal   Income  Tax
Considerations" is based upon the opinion of Bose McKinney and Evans.
 
                                      S-40
<PAGE>
PROSPECTUS
 
                                  $360,000,000
 
                         DUKE REALTY INVESTMENTS, INC.
              COMMON STOCK, PREFERRED STOCK AND DEPOSITARY SHARES
 
                        DUKE REALTY LIMITED PARTNERSHIP
                                DEBT SECURITIES
 
    Duke Realty Investments, Inc. (the "Company") may from time to time offer in
one  or more series (i) shares of Common Stock, $.01 par value ("Common Stock"),
(ii) shares of  preferred stock, $.01  par value ("Preferred  Stock") and  (iii)
shares  of  Preferred Stock  represented by  depositary shares  (the "Depositary
Shares"), with an aggregate public offering price of up to $100,000,000 (or  its
equivalent  in another currency based on the  exchange rate at the time of sale)
in amounts, at prices  and on terms  to be determined at  the time of  offering.
Duke  Realty Limited Partnership (the "Operating  Partnership") may from time to
time offer in one or more series unsecured non-convertible investment grade debt
securities ("Debt Securities"), with an aggregate public offering price of up to
$260,000,000 (or its equivalent in another  currency based on the exchange  rate
at  the time of sale) in amounts, at prices and on terms to be determined at the
time of offering. The Common Stock, Preferred Stock, Depositary Shares and  Debt
Securities,  (collectively,  the  "Securities") may  be  offered,  separately or
together, in separate series in amounts, at prices and on terms to be set  forth
in one or more supplements to this Prospectus (each a "Prospectus Supplement").
 
    The  specific terms of the Securities in respect of which this Prospectus is
being delivered will be  set forth in the  applicable Prospectus Supplement  and
will  include, where applicable:  (i) in the  case of Common  Stock, any initial
public offering price; (ii) in the  case of Preferred Stock, the specific  title
and  stated value, any dividend, liquidation, redemption, conversion, voting and
other rights,  and any  initial public  offering  price; (iii)  in the  case  of
Depositary  Shares, the fractional share of  Preferred Stock represented by each
such Depositary Share;  and (iv) in  the case of  Debt Securities, the  specific
title,  aggregate principal amount,  currency, form (which  may be registered or
bearer, or certificated or global), authorized denominations, maturity, rate (or
manner of  calculation thereof)  and  time of  payment  of interest,  terms  for
redemption at the option of the Operating Partnership or repayment at the option
of the holder, terms for sinking fund payments, covenants and any initial public
offering  price. In  addition, such  specific terms  may include  limitations on
direct or beneficial ownership and  restrictions on transfer of the  Securities,
in  each case as may be  appropriate to preserve the status  of the Company as a
real estate investment trust ("REIT") for federal income tax purposes.
 
    The applicable Prospectus  Supplement will also  contain information,  where
applicable,  about  certain  United  States  federal  income  tax considerations
relating to, and any listing on a securities exchange of, the Securities covered
by such Prospectus Supplement.
 
    The Securities may be offered directly, through agents designated from  time
to  time  by  the  Company  or  the  Operating  Partnership,  or  to  or through
underwriters or dealers. If any agents or underwriters are involved in the  sale
of  any of the Securities, their names,  and any applicable purchase price, fee,
commission or discount arrangement between or among them, will be set forth,  or
will be calculable from the information set forth, in an accompanying Prospectus
Supplement.  See  "Plan  of Distribution."  No  Securities may  be  sold without
delivery of  a Prospectus  Supplement describing  the method  and terms  of  the
offering of such series of Securities.
 
                              -------------------
 
THESE  SECURITIES HAVE NOT BEEN APPROVED  OR DISAPPROVED BY THE SECURITIES AND
  EXCHANGE COMMISSION  OR  ANY  STATE  SECURITIES  COMMISSION  NOR  HAS  THE
    SECURITIES  AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION
      PASSED UPON  THE  ACCURACY  OR ADEQUACY  OF  THIS  PROSPECTUS.  ANY
             REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.
 
                              -------------------
 
THE ATTORNEY GENERAL OF THE STATE OF NEW YORK HAS NOT PASSED ON OR ENDORSED THE
   MERITS  OF THIS OFFERING. ANY REPRESENTATION  TO THE CONTRARY IS UNLAWFUL.
 
               The date of this Prospectus is September 7, 1995.
<PAGE>
                             AVAILABLE INFORMATION
 
    The Company and the Operating  Partnership are subject to the  informational
requirements  of the Securities Exchange Act  of 1934, as amended (the "Exchange
Act"), and, in accordance therewith, the Company files reports, proxy statements
and  other  information  with  the  Securities  and  Exchange  Commission   (the
"Commission"),  and the Operating Partnership files reports with the Commission.
Such reports, proxy statements and other information can be inspected and copied
at the Public Reference Section maintained  by the Commission at Room 1024,  450
Fifth  Street, N.W., Washington,  D.C. 20549; Chicago  Regional Office, 500 West
Madison Street,  Suite 1400,  Chicago,  Illinois 60661;  and New  York  Regional
Office,  7 World  Trade Center,  New York, New  York 10048.  Such reports, proxy
statements and other information concerning the Company can also be inspected at
the offices of the New York Stock Exchange, 20 Broad Street, New York, New  York
10005.  The Commission maintains a Web  site (http:// www.sec.gov) that contains
reports, proxy and  information statements and  other information regarding  the
Company and the Operating Partnership.
 
    The  Company and  the Operating Partnership  will provide  without charge to
each person to whom a copy of  this Prospectus is delivered, upon their  written
or  oral request, a copy  of any or all of  the documents incorporated herein by
reference (other than  exhibits to  such documents). Written  requests for  such
copies  should be addressed to 8888 Keystone Crossing, Suite 1200, Indianapolis,
Indiana 46240, Attn: Investor Relations, telephone number (317) 574-3531.
 
    The Company and the Operating Partnership  have filed with the Commission  a
registration  statement  on Form  S-3 (the  "Registration Statement")  under the
Securities Act of 1933  as amended (the "Securities  Act"), with respect to  the
Securities  offered hereby. For further information with respect to the Company,
the Operating Partnership and the  Securities offered hereby, reference is  made
to the Registration Statement and exhibits thereto. Statements contained in this
Prospectus  as  to the  contents  of any  contract  or other  documents  are not
necessarily complete, and  in each instance,  reference is made  to the copy  of
such  contract or documents  filed as an exhibit  to the Registration Statement,
each such statement being qualified in all respects by such reference.
 
                INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE
 
    The following documents filed by the Company under the Exchange Act with the
Commission are incorporated in this Prospectus by reference and are made a  part
hereof:
 
    1.  The Company's Annual Report on Form 10-K for the year ended December 31,
        1994.
 
    2.  The  Company's Quarterly  Reports on  Form 10-Q  for the  quarters ended
        March 31, 1995 and June 30, 1995.
 
    3.  The Company's Current Reports  on Form 8-K dated  May 15, 1995, June  6,
        1995, July 27, 1995 and September 5, 1995.
 
    Each  document filed by the Company  or the Operating Partnership subsequent
to the date of this Prospectus pursuant to Section 13(a), 13(c), 14 or 15(d)  of
the  Exchange Act and prior to termination  of the offering of all Securities to
which this Prospectus relates shall be deemed to be incorporated by reference in
this Prospectus  and shall  be  part hereof  from the  date  of filing  of  such
document. Any statement contained herein or in a document incorporated or deemed
to  be  incorporated by  reference  herein shall  be  deemed to  be  modified or
superseded for  purposes of  this  Prospectus to  the  extent that  a  statement
contained  in this Prospectus (in the case  of a statement in a previously-filed
document incorporated or deemed to be incorporated by reference herein), in  any
accompanying Prospectus Supplement relating to a specific offering of Securities
or  in any other subsequently filed document that is also incorporated or deemed
to be incorporated by reference  herein, modifies or supersedes such  statement.
Any  such statement so modified or superseded  shall not be deemed, except as so
modified or  superseded,  to  constitute  a  part  of  this  Prospectus  or  any
accompanying  Prospectus Supplement.  Subject to the  foregoing, all information
appearing in  this Prospectus  and each  accompanying Prospectus  Supplement  is
qualified  in  its  entirety  by  the  information  appearing  in  the documents
incorporated by reference.
 
                                       2
<PAGE>
                   THE COMPANY AND THE OPERATING PARTNERSHIP
 
    The  Company is a self-administered  and self-managed real estate investment
trust that began operations through a predecessor in 1972. At June 30, 1995, the
Company owned direct  or indirect  interests in  a portfolio  of 144  in-service
industrial,  office  and  retail properties  (the  "Properties"),  together with
approximately 900  acres  of  land  (the "Land")  for  future  development.  The
Properties  consist  of industrial,  office  and retail  properties,  located in
Indiana, Ohio, Illinois, Kentucky, Michigan, Missouri, Tennessee and  Wisconsin.
As  of June  30, 1995,  the Properties  consisted of  approximately 15.2 million
square feet,  which  were  approximately 95.3%  leased  to  approximately  1,200
tenants.
 
    All  of the Company's interests in the  Properties and Land are held by, and
substantially all of  its operations  relating to  the Properties  and Land  are
conducted  through, the Operating Partnership. The Operating Partnership holds a
100% interest in all but 21 of the Properties and substantially all of the Land.
The Company controls the Operating Partnership  as the sole general partner  and
owner,  as of June 30, 1995, of approximately 85.29% of the outstanding units of
partnership interest of  the Operating Partnership  ("Units"). Each Unit,  other
than  those held by the Company, may be  exchanged by the holder thereof for one
share (subject  to certain  adjustments) of  the Common  Stock. With  each  such
exchange, the number of Units owned by the Company and, therefore, the Company's
percentage interest in the Operating Partnership, will increase.
 
    In addition to owning the Properties and the Land, the Operating Partnership
also provides services associated with leasing, property management, real estate
development,  construction  and  miscellaneous  tenant  services  (the  "Related
Businesses") for the Properties. The  Company also provides services  associated
with  the Related  Businesses to  third parties  and owners  of indirectly owned
Properties through Duke Realty Services Limited Partnership on a fee basis.
 
    The Company's  experienced  staff  provides  a full  range  of  real  estate
services  from  executive offices  headquartered in  Indianapolis, and  from six
regional  offices  located  in  the  Cincinnati,  Columbus,  Decatur,   Detroit,
Nashville and St. Louis metropolitan areas.
 
    The  Company is an  Indiana corporation that  was originally incorporated in
the State of Delaware  in 1985, and  reincorporated in the  State of Indiana  in
1992.  The  Operating Partnership  is an  Indiana  limited partnership  that was
formed in 1993. The Company's and the Operating Partnership's executive  offices
are  located at 8888 Keystone Crossing, Suite 1200, Indianapolis, Indiana 46240,
and their telephone number is (317) 574-3531.
 
                                USE OF PROCEEDS
 
    The Company is required,  by the terms of  the partnership agreement of  the
Operating  Partnership, to invest the net proceeds  of any sale of Common Stock,
Preferred Stock or Depositary  Shares in the  Operating Partnership in  exchange
for  additional Units or preferred  Units, as the case  may be. Unless otherwise
specified in the applicable Prospectus Supplement, the Company and the Operating
Partnership intend  to use  the net  proceeds from  the sale  of Securities  for
general  corporate  purposes,  including  the  development  and  acquisition  of
additional properties and other acquisition transactions, the payment of certain
outstanding debt,  and  improvements  to certain  properties  in  the  Company's
portfolio.
 
                      RATIOS OF EARNINGS TO FIXED CHARGES
 
    The  Company's and the  Operating Partnership's ratios  of earnings to fixed
charges for the six months ended June 30, 1995 were 2.48 and for the year  ended
December  31, 1994  were 2.33. The  ratio of  earnings to fixed  charges for the
Company for the year  ended December 31,  1993 was 1.58,  and for the  Operating
Partnership from its formation on October 4, 1993 to December 31, 1993 was 2.51.
 
                                       3
<PAGE>
    For  purposes of  computing these ratios,  earnings have  been calculated by
adding fixed charges,  excluding capitalized interest,  to income (loss)  before
gains  or losses on property sales and  (if applicable) minority interest in the
Operating Partnership. Fixed charges consist (if applicable) of interest  costs,
whether  expensed or capitalized,  the interest component  of rental expense and
amortization of debt issuance costs.
 
    Prior to completion of  the Company's reorganization  in October, 1993,  the
Company  maintained a  different capital  structure. As  a result,  although the
original properties  have historically  generated positive  net cash  flow,  the
financial  statements of the Company show net  losses for the fiscal years ended
December 31, 1992, 1991 and 1990. Consequently, the computation of the ratio  of
earnings  to  fixed  charges  for  such  periods  indicates  that  earnings were
inadequate to cover fixed  charges by approximately  $0.7 million, $1.8  million
and  $1.7 million for the  fiscal years ended December  31, 1992, 1991 and 1990,
respectively.
 
    The  recapitalization  of  the  Company  effected  in  connection  with  the
reorganization  permitted the Company to  significantly deleverage, resulting in
an improved ratio  of earnings to  fixed charges for  periods subsequent to  the
reorganization.
 
                         DESCRIPTION OF DEBT SECURITIES
 
    The  Debt Securities  will be issued  under an  Indenture (the "Indenture"),
between the Operating  Partnership and The  First National Bank  of Chicago,  as
trustee.  The  Indenture  has  been  filed as  an  exhibit  to  the Registration
Statement of which this Prospectus is a part and is available for inspection  at
the  corporate trust office of the trustee  at 14 Wall Street, Eighth Floor, New
York, New York 10005  or as described above  under "Available Information."  The
Indenture  is subject to, and  governed by, the Trust  Indenture Act of 1939, as
amended (the "TIA"). The statements made hereunder relating to the Indenture and
the Debt Securities to be issued thereunder are summaries of certain  provisions
thereof  and do not purport to be complete and are subject to, and are qualified
in their entirety by reference to, all provisions of the Indenture and such Debt
Securities. All  section references  appearing  herein are  to sections  of  the
Indenture,  and capitalized  terms used  but not  defined herein  shall have the
respective meanings set forth in the Indenture.
 
GENERAL
 
    The Debt Securities will be  direct, unsecured obligations of the  Operating
Partnership  and will rank  equally with all  other unsecured and unsubordinated
indebtedness  of  the  Operating  Partnership.  At  June  30,  1995,  the  total
outstanding  debt of the Operating Partnership  was $300.2 million, all of which
was secured  debt.  The  Debt Securities  may  be  issued without  limit  as  to
aggregate  principal amount, in one or more  series, in each case as established
from time to time  in or pursuant  to authority granted by  a resolution of  the
Board  of Directors  of the  Company as  sole general  partner of  the Operating
Partnership or as  established in  one or  more indentures  supplemental to  the
Indenture. All Debt Securities of one series need not be issued at the same time
and, unless otherwise provided, a series may be reopened, without the consent of
the  holders of the Debt Securities of  such series, for issuances of additional
Debt Securities of such series (Section 301).
 
    The Indenture  provides  that  there  may be  more  than  one  trustee  (the
"Trustee")  thereunder,  each  with  respect  to  one  or  more  series  of Debt
Securities. Any  Trustee under  the  Indenture may  resign  or be  removed  with
respect to one or more series of Debt Securities, and a successor Trustee may be
appointed  to act with respect  to such series (Section  608). In the event that
two or more persons are  acting as Trustee with  respect to different series  of
Debt  Securities, each  such Trustee  shall be  a trustee  of a  trust under the
Indenture separate and apart  from the trust administered  by any other  Trustee
(Section  609), and, except as otherwise  indicated herein, any action described
herein to be taken by a Trustee may  be taken by each such Trustee with  respect
to,  and only  with respect to,  the one or  more series of  Debt Securities for
which it is Trustee under the Indenture.
 
                                       4
<PAGE>
    Reference is made  to the Prospectus  Supplement relating to  the series  of
Debt Securities being offered for the specific terms thereof, including:
 
    (1) the title of such Debt Securities;
 
    (2) the  aggregate principal amount of such Debt Securities and any limit on
        such aggregate principal amount;
 
    (3) the percentage of  the principal  amount at which  such Debt  Securities
        will  be issued  and, if  other than  the principal  amount thereof, the
        portion of  the principal  amount thereof  payable upon  declaration  of
        acceleration of the maturity thereof;
 
    (4) the  date or dates, or the method for determining such date or dates, on
        which the principal of such Debt Securities will be payable;
 
    (5) the rate or rates  (which may be  fixed or variable),  or the method  by
        which  such  rate  or rates  shall  be  determined, at  which  such Debt
        Securities will bear interest, if any;
 
    (6) the date or  dates, or the  method for determining  such date or  dates,
        from  which  any  interest will  accrue,  the  dates on  which  any such
        interest will be  payable, the  record dates for  such interest  payment
        dates,  or the method  by which any  such date shall  be determined, the
        person to whom such interest shall be payable, and the basis upon  which
        interest  shall be calculated  if other than  that of a  360-day year of
        twelve 30-day months;
 
    (7) the place or  places where the  principal of (and  premium, if any)  and
        interest,  if any,  on such Debt  Securities will be  payable, such Debt
        Securities may be surrendered for  registration of transfer or  exchange
        and  notices or demands to or  upon the Operating Partnership in respect
        of such Debt Securities and the Indenture may be served;
 
    (8) the period or periods within which, the price or prices at which and the
        terms and conditions upon which such Debt Securities may be redeemed, as
        a whole or in part, at the  option of the Operating Partnership, if  the
        Operating Partnership is to have such an option;
 
    (9) the obligation, if any, of the Operating Partnership to redeem, repay or
        purchase  such Debt Securities pursuant to any sinking fund or analogous
        provision or  at the  option of  a  holder thereof,  and the  period  or
        periods  within which, the  price or prices  at which and  the terms and
        conditions upon which such Debt  Securities will be redeemed, repaid  or
        purchased, as a whole or in part, pursuant to such obligation;
 
   (10) if  other than  U.S. dollars, the  currency or currencies  in which such
        Debt Securities  are denominated  and payable,  which may  be a  foreign
        currency  or  units of  two or  more foreign  currencies or  a composite
        currency or currencies, and the terms and conditions relating thereto;
 
   (11) whether the amount of payments of principal of (and premium, if any)  or
        interest,  if  any,  on  such Debt  Securities  may  be  determined with
        reference to an index, formula or other method (which index, formula  or
        method  may, but need not be,  based on a currency, currencies, currency
        unit or units  or composite currency  or currencies) and  the manner  in
        which such amounts shall be determined;
 
   (12) the  events  of default  or covenants  of such  Debt Securities,  to the
        extent different from or in addition to those described herein;
 
   (13) whether such  Debt  Securities will  be  issued in  certificated  and/or
        book-entry form;
 
   (14) whether  such Debt Securities will be  in registered or bearer form and,
        if in registered form,  the denominations thereof  if other than  $1,000
        and   any  integral  multiple  thereof  and,  if  in  bearer  form,  the
        denominations thereof  if other  than $5,000  and terms  and  conditions
        relating thereto;
 
                                       5
<PAGE>
   (15) the  applicability, if  any, of  the defeasance  and covenant defeasance
        provisions described herein, or any modification thereof;
 
   (16) if such  Debt Securities  are to  be issued  upon the  exercise of  debt
        warrants,  the time,  manner and  place for  such Debt  Securities to be
        authenticated and delivered;
 
   (17) whether and under what circumstances the Operating Partnership will  pay
        additional  amounts  on  such Debt  Securities  in respect  of  any tax,
        assessment or  governmental charge  and, if  so, whether  the  Operating
        Partnership  will have the option to redeem such Debt Securities in lieu
        of making such payment;
 
   (18) with respect to any Debt Securities that provide for optional redemption
        or prepayment upon the occurrence of certain events (such as a change of
        control of the Operating Partnership), (i) the possible effects of  such
        provisions  on the  market price of  the Operating  Partnership's or the
        Company's securities or in deterring  certain mergers, tender offers  or
        other  takeover attempts, and the intention of the Operating Partnership
        to comply with the requirements of Rule 14e-1 under the Exchange Act and
        any other applicable securities laws in connection with such provisions;
        (ii) whether the  occurrence of the  specified events may  give rise  to
        cross-defaults  on  other indebtedness  such that  payment on  such Debt
        Securities may be effectively subordinated;  and (iii) the existence  of
        any limitation on the Operating Partnership's financial or legal ability
        to  repurchase such Debt Securities upon the occurrence of such an event
        (including, if true, the lack of assurance that such a repurchase can be
        effected) and the impact, if any, under the Indenture of such a failure,
        including whether  and  under  what circumstances  such  a  failure  may
        constitute an Event of Default; and
 
   (19) any other terms of such Debt Securities.
 
    The  Debt Securities may  provide for less than  the entire principal amount
thereof to be payable upon declaration  of acceleration of the maturity  thereof
("Original  Issue Discount Securities"). If material or applicable, special U.S.
federal income tax, accounting and  other considerations applicable to  Original
Issue  Discount  Securities  will  be  described  in  the  applicable Prospectus
Supplement.
 
    Except as described under "Merger, Consolidation  or Sale" or as may be  set
forth  in any  Prospectus Supplement, the  Indenture does not  contain any other
provisions that would limit  the ability of the  Operating Partnership to  incur
indebtedness  or that would afford holders  of the Debt Securities protection in
the event  of  (i) a  highly  leveraged  or similar  transaction  involving  the
Operating  Partnership,  the  management  of the  Operating  Partnership  or the
Company, or any affiliate of any such party, (ii) a change of control, or  (iii)
a  reorganization, restructuring,  merger or  similar transaction  involving the
Operating Partnership  that  may  adversely  affect  the  holders  of  the  Debt
Securities.  In addition,  subject to the  limitations set  forth under "Merger,
Consolidation or Sale," the Operating Partnership may, in the future, enter into
certain transactions, such as the sale of all or substantially all of its assets
or the merger or consolidation of the Operating Partnership, that would increase
the amount of the Operating  Partnership's indebtedness or substantially  reduce
or  eliminate  the Operating  Partnership's assets,  which  may have  an adverse
effect on  the  Operating Partnership's  ability  to service  its  indebtedness,
including  the  Debt  Securities.  In addition,  restrictions  on  ownership and
transfers of the  Company's common  stock and  preferred stock  are designed  to
preserve  its status as  a REIT and, therefore,  may act to  prevent or hinder a
change of  control.  See "Description  of  Common Stock  --  Certain  Provisions
Affecting Change of Control" and "Description of Preferred Stock -- Restrictions
on  Ownership." Reference  is made to  the applicable  Prospectus Supplement for
information with respect to any deletions from, modifications of or additions to
the events  of default  or covenants  that are  described below,  including  any
addition  of  a covenant  or  other provision  providing  event risk  or similar
protection.
 
    Reference is made to "-- Certain Covenants" below and to the description  of
any  additional covenants  with respect  to a series  of Debt  Securities in the
applicable Prospectus Supplement. Except as otherwise
 
                                       6
<PAGE>
described  in  the  applicable  Prospectus  Supplement,  compliance  with   such
covenants  generally  may  not  be  waived with  respect  to  a  series  of Debt
Securities by the Board of Directors of  the Company as sole general partner  of
the  Operating Partnership or  by the Trustee  unless the Holders  of at least a
majority in principal amount of all  outstanding Debt Securities of such  series
consent  to such waiver, except  to the extent that  the defeasance and covenant
defeasance provisions of the Indenture described under "-- Discharge, Defeasance
and Covenant Defeasance" below apply to such series of Debt Securities. See  "--
Modification of the Indenture."
 
DENOMINATIONS, INTEREST, REGISTRATION AND TRANSFER
 
    Unless otherwise described in the applicable Prospectus Supplement, the Debt
Securities  of any series which are registered securities, other than registered
securities issued in global  form (which may be  of any denomination), shall  be
issuable  in denominations of  $1,000 and any integral  multiple thereof and the
Debt Securities which are bearer securities, other than bearer securities issued
in global  form  (which  may be  of  any  denomination), shall  be  issuable  in
denominations of $5,000 (Section 302).
 
    Unless  otherwise  specified in  the  applicable Prospectus  Supplement, the
principal of (and premium, if any) and interest on any series of Debt Securities
will be payable at the corporate trust office of the Trustee, initially  located
at  14 Wall Street, Eighth  Floor, New York, New  York, 10005, provided that, at
the option of  the Operating  Partnership, payment of  interest may  be made  by
check  mailed to the address of the Person entitled thereto as it appears in the
applicable Security Register or by wire transfer  of funds to such Person at  an
account maintained within the United States (Sections 301, 307 and 1002).
 
    Any  interest  not punctually  paid  or duly  provided  for on  any Interest
Payment Date  with  respect  to  a Debt  Security  ("Defaulted  Interest")  will
forthwith  cease to be  payable to the  Holder on the  applicable Regular Record
Date and may either be  paid to the Person in  whose name such Debt Security  is
registered  at the  close of  business on  a special  record date  (the "Special
Record Date") for  the payment of  such Defaulted  Interest to be  fixed by  the
Trustee,  notice whereof shall be given to  the Holder of such Debt Security not
less than 10 days prior to such Special Record Date, or may be paid at any  time
in any other lawful manner, all as more completely described in the Indenture.
 
    Subject  to  certain  limitations  imposed upon  Debt  Securities  issued in
book-entry form, the  Debt Securities  of any  series will  be exchangeable  for
other  Debt Securities  of the  same series  and of  a like  aggregate principal
amount and tenor of  different authorized denominations  upon surrender of  such
Debt  Securities at the corporate trust office of the Trustee referred to above.
In addition, subject to certain limitations imposed upon Debt Securities  issued
in  book-entry form, the  Debt Securities of  any series may  be surrendered for
registration of transfer thereof  at the corporate trust  office of the  Trustee
referred  to above. Every Debt Security surrendered for registration of transfer
or exchange shall  be duly endorsed  or accompanied by  a written instrument  of
transfer.  No service charge  will be made  for any registration  of transfer or
exchange of any Debt  Securities, but the Trustee  or the Operating  Partnership
may  require payment of a sum sufficient  to cover any tax or other governmental
charge  payable  in  connection  therewith  (Section  305).  If  the  applicable
Prospectus  Supplement refers to any transfer agent (in addition to the Trustee)
initially designated by the Operating Partnership with respect to any series  of
Debt  Securities,  the  Operating  Partnership  may  at  any  time  rescind  the
designation of  any such  transfer agent  or approve  a change  in the  location
through  which any such  transfer agent acts,  except that Operating Partnership
will be required to maintain a transfer agent in each place of payment for  such
series.  The Operating Partnership may at any time designate additional transfer
agents with respect to any series of Debt Securities (Section 1002).
 
    Neither the Operating Partnership nor the  Trustee shall be required (i)  to
issue,  register the  transfer of  or exchange  any Debt  Security if  such Debt
Security may be among those selected for redemption during a period beginning at
the opening of business 15  days before selection of  the Debt Securities to  be
redeemed  and ending at the close of business on (A) if such Debt Securities are
issuable only as Registered Securities, the  day of the mailing of the  relevant
notice  of redemption  and (B)  if such Debt  Securities are  issuable as Bearer
Securities, the  day  of  the  first  publication  of  the  relevant  notice  of
redemption or, if such Debt
 
                                       7
<PAGE>
Securities   are  also  issuable  as  Registered  Securities  and  there  is  no
publication, the  mailing of  the  relevant notice  of  redemption, or  (ii)  to
register  the transfer  of or exchange  any Registered Security  so selected for
redemption in whole or in part, except,  in the case of any Registered  Security
to  be redeemed  in part, the  portion thereof not  to be redeemed,  or (iii) to
exchange any  Bearer Security  so selected  for redemption  except that  such  a
Bearer  Security may be exchanged  for a Registered Security  of that series and
like tenor,  PROVIDED  that such  Registered  Security shall  be  simultaneously
surrendered  for  redemption, or  (iv)  to issue,  register  the transfer  of or
exchange any Security which has been surrendered for repayment at the option  of
the  Holder, except  the portion,  if any, of  such Debt  Security not  to be so
repaid (Section 305).
 
MERGER, CONSOLIDATION OR SALE
 
    The Operating Partnership may consolidate with, or sell, lease or convey all
or substantially all of its assets to, or merge with or into, any other  entity,
provided  that (a) the Operating Partnership  shall be the continuing entity, or
the successor entity  (if other  than the  Operating Partnership)  formed by  or
resulting from any such consolidation or merger or which shall have received the
transfer  of such assets shall expressly assume payment of the principal of (and
premium, if  any) and  interest  on all  the Debt  Securities  and the  due  and
punctual  performance  and observance  of all  of  the covenants  and conditions
contained in  the  Indenture;  (b)  immediately  after  giving  effect  to  such
transaction  and treating  any indebtedness which  becomes an  obligation of the
Operating Partnership  or any  Subsidiary as  a result  thereof as  having  been
incurred  by the Operating  Partnership or such  Subsidiary at the  time of such
transaction, no Event of Default under the Indenture, and no event which,  after
notice  or the lapse  of time, or both,  would become such  an Event of Default,
shall have occurred  and be  continuing; and  (c) an  officer's certificate  and
legal  opinion  covering  such  conditions shall  be  delivered  to  the Trustee
(Sections 801 and 803).
 
CERTAIN COVENANTS
 
    EXISTENCE.  Except as permitted  under "Merger, Consolidation or Sale,"  the
Operating Partnership is required to do or cause to be done all things necessary
to  preserve  and  keep in  full  force  and effect  its  existence,  rights and
franchises; PROVIDED,  HOWEVER,  that the  Operating  Partnership shall  not  be
required  to  preserve  any  right  or  franchise  if  it  determines  that  the
preservation thereof is no longer desirable  in the conduct of its business  and
that  the loss  thereof is  not disadvantageous in  any material  respect to the
Holders of the Debt Securities (Section 1007).
 
    MAINTENANCE OF PROPERTIES.  The  Operating Partnership is required to  cause
all  of its material properties used or useful in the conduct of its business or
the business of  any Subsidiary  to be maintained  and kept  in good  condition,
repair  and working order and supplied with all necessary equipment and to cause
to be  made  all  necessary repairs,  renewals,  replacements,  betterments  and
improvements thereof, all as in the judgment of the Operating Partnership may be
necessary  so  that  the business  carried  on  in connection  therewith  may be
properly and advantageously conducted at all times; PROVIDED, HOWEVER, that  the
Operating  Partnership and its Subsidiaries shall  not be prevented from selling
or otherwise disposing  for value  their respective properties  in the  ordinary
course of business (Section 1008).
 
    INSURANCE.   The  Operating Partnership is  required to, and  is required to
cause each of its Subsidiaries to, keep all of its insurable properties  insured
against  loss or damage at  least equal to their  then full insurable value with
financially sound and reputable insurance companies (Section 1009).
 
    PAYMENT OF TAXES AND OTHER CLAIMS.  The Operating Partnership is required to
pay or discharge or cause to be paid or discharged, before the same shall become
delinquent, (i)  all  taxes,  assessments and  governmental  charges  levied  or
imposed  upon it or  any Subsidiary or  upon its income,  profits or property or
that of any  Subsidiary, and  (ii) all lawful  claims for  labor, materials  and
supplies  which, if unpaid, might by law become  a lien upon the property of the
Operating Partnership or any Subsidiary;  PROVIDED, HOWEVER, that the  Operating
Partnership  shall not be  required to pay or  discharge or cause  to be paid or
discharged any such tax, assessment, charge or claim whose amount, applicability
or validity is being contested in good faith by appropriate proceedings (Section
1010).
 
                                       8
<PAGE>
    PROVISION OF FINANCIAL INFORMATION.  The Holders of Debt Securities will  be
provided  with  copies  of  the  annual reports  and  quarterly  reports  of the
Operating Partnership. Whether or  not the Operating  Partnership is subject  to
Section  13 or 15(d) of the Exchange Act  and for so long as any Debt Securities
are outstanding, the Operating Partnership  will, to the extent permitted  under
the  Exchange Act, be required  to file with the  Commission the annual reports,
quarterly reports and other documents which the Operating Partnership would have
been required to file with the Commission  pursuant to such Section 13 or  15(d)
(the  "Financial Statements") if the Operating Partnership were so subject, such
documents to be filed with  the Commission on or  prior to the respective  dates
(the "Required Filing Dates") by which the Operating Partnership would have been
required so to file such documents if the Operating Partnership were so subject.
The  Operating Partnership  will also in  any event  (x) within 15  days of each
Required Filing Date (i) transmit by mail to all Holders of Debt Securities,  as
their  names and addresses appear in the Security Register, without cost to such
Holders, copies of the annual reports and quarterly reports which the  Operating
Partnership  would have  been required to  file with the  Commission pursuant to
Section 13  or 15(d)  of the  Exchange  Act if  the Operating  Partnership  were
subject  to such Sections  and (ii) file  with the Trustee  copies of the annual
reports, quarterly reports and other  documents which the Operating  Partnership
would  have been required to file with  the Commission pursuant to Section 13 or
15(d) of the  Exchange Act  if the Operating  Partnership were  subject to  such
Sections  and (y) if filing such documents by the Operating Partnership with the
Commission is  not  permitted under  the  Exchange Act,  promptly  upon  written
request  and payment of the reasonable  cost of duplication and delivery, supply
copies of such documents to any prospective Holder (Section 1011).
 
    ADDITIONAL  COVENANTS.    Any  additional  or  different  covenants  of  the
Operating  Partnership with respect to any series of Debt Securities will be set
forth in the Prospectus Supplement relating thereto.
 
EVENTS OF DEFAULT, NOTICE AND WAIVER
 
    The Indenture provides  that the  following events are  "Events of  Default"
with respect to any series of Debt Securities issued thereunder: (a) default for
30  days in the payment  of any installment of interest  on any Debt Security of
such series; (b) default in the payment of the principal of (or premium, if any,
on) any Debt Security of such series at its maturity; (c) default in making  any
sinking  fund payment  as required  for any  Debt Security  of such  series; (d)
default in the performance  of any other covenant  of the Operating  Partnership
contained  in the Indenture (other than a covenant added to the Indenture solely
for the benefit of a series of Debt Securities issued thereunder other than such
series), such  default having  continued for  60 days  after written  notice  as
provided  in the Indenture; (e) default in the payment of an aggregate principal
amount exceeding  $5,000,000 of  any evidence  of recourse  indebtedness of  the
Operating Partnership or any mortgage, indenture or other instrument under which
such  indebtedness  is issued  or by  which such  indebtedness is  secured, such
default having occurred after the expiration of any applicable grace period  and
having  resulted in the  acceleration of the maturity  of such indebtedness, but
only if  such  indebtedness  is  not discharged  or  such  acceleration  is  not
rescinded   or  annulled;  (f)  certain  events  of  bankruptcy,  insolvency  or
reorganization, or court appointment of a receiver, liquidator or trustee of the
Operating Partnership or any Significant  Subsidiary or any of their  respective
property;  and  (g)  any other  Event  of  Default provided  with  respect  to a
particular series of  Debt Securities. The  term "Significant Subsidiary"  means
each  significant subsidiary (as defined in Regulation S-X promulgated under the
Securities Act) of the Operating Partnership.
 
    If an Event of Default under  the Indenture with respect to Debt  Securities
of  any series at the  time Outstanding occurs and  is continuing, then in every
such case the Trustee or the Holders of not less than 25% in principal amount of
the Outstanding Debt Securities of that series may declare the principal  amount
(or,  if  the  Debt  Securities  of  that  series  are  Original  Issue Discount
Securities or Indexed Securities, such portion of the principal amount as may be
specified in the terms thereof) of all of the Debt Securities of that series  to
be  due  and payable  immediately  by written  notice  thereof to  the Operating
Partnership (and to the Trustee if given  by the Holders). However, at any  time
after such a declaration of acceleration with respect to Debt Securities of such
series  (or of all Debt Securities then  Outstanding under the Indenture, as the
case may be)
 
                                       9
<PAGE>
has been made, but before a judgment or decree for payment of the money due  has
been  obtained  by the  Trustee,  the Holders  of not  less  than a  majority in
principal amount of Outstanding Debt Securities  of such series (or of all  Debt
Securities then Outstanding under the Indenture, as the case may be) may rescind
and annul such declaration and its consequences if (a) the Operating Partnership
shall  have deposited with  the applicable Trustee all  required payments of the
principal of (and premium, if any) and  interest on the Debt Securities of  such
series  (or of all Debt Securities then  Outstanding under the Indenture, as the
case may be),  plus certain fees,  expenses, disbursements and  advances of  the
Trustee and (b) all Events of Default, other than the non-payment of accelerated
principal  of (or specified portion thereof), or premium (if any) or interest on
the Debt Securities of such series  (or of all Debt Securities then  Outstanding
under  the Indenture, as the case may be)  have been cured or waived as provided
in the Indenture (Section 502). The Indenture also provides that the Holders  of
not  less than a majority in principal amount of the Outstanding Debt Securities
of any series (or of all  Debt Securities then Outstanding under the  Indenture,
as  the case may be) may waive any  past default with respect to such series and
its consequences, except a default  (x) in the payment  of the principal of  (or
premium,  if any)  or interest  on any Debt  Security or  such series  or (y) in
respect of a  covenant or provision  contained in the  Indenture that cannot  be
modified  or amended without the consent of  the Holder of each Outstanding Debt
Security affected thereby (Section 513).
 
    The Trustee  will  be  required  to  give notice  to  the  Holders  of  Debt
Securities  within 90 days of a default  under the Indenture unless such default
has been  cured or  waived; PROVIDED,  HOWEVER, that  the Trustee  may  withhold
notice  to the  Holders of  any series  of Debt  Securities of  any default with
respect to such series (except a default in the payment of the principal of  (or
premium,  if any)  or interest  on any Debt  Security of  such series  or in the
payment of any sinking fund installment in respect of any Debt Security of  such
series)   if  specified  Responsible  Officers  of  the  Trustee  consider  such
withholding to be in the interest of such Holders (Section 601).
 
    The Indenture provides that no Holders of Debt Securities of any series  may
institute  any proceedings, judicial or otherwise, with respect to the Indenture
or for any remedy thereunder, except in the case of failure of the Trustee,  for
60 days, to act after it has received a written request to institute proceedings
in  respect of  an Event of  Default from  the Holders of  not less  than 25% in
principal amount of the Outstanding Debt  Securities of such series, as well  as
an  offer  of  indemnity  reasonably  satisfactory  to  it  (Section  507). This
provision will  not  prevent,  however,  any  holder  of  Debt  Securities  from
instituting  suit  for  the enforcement  of  payment  of the  principal  of (and
premium, if any)  and interest  on such Debt  Securities at  the respective  due
dates thereof (Section 508).
 
    Subject  to provisions in  the Indenture relating  to its duties  in case of
default, the Trustee is  under no obligation  to exercise any  of its rights  or
powers  under the Indenture  at the request  or direction of  any Holders of any
series of  Debt Securities  then Outstanding  under the  Indenture, unless  such
Holders  shall have  offered to  the Trustee  thereunder reasonable  security or
indemnity (Section 602). The  Holders of not less  than a majority in  principal
amount  of  the  Outstanding Debt  Securities  of  any series  (or  of  all Debt
Securities then Outstanding under the Indenture, as the case may be) shall  have
the  right to direct the time, method and place of conducting any proceeding for
any remedy  available  to the  Trustee,  or of  exercising  any trust  or  power
conferred  upon  the Trustee.  However,  the Trustee  may  refuse to  follow any
direction which is in conflict with any law or the Indenture, which may  involve
the  Trustee in  personal liability  or which may  be unduly  prejudicial to the
holders of Debt Securities of such series not joining therein (Section 512).
 
    Within 120  days  after  the  close  of  each  fiscal  year,  the  Operating
Partnership  must deliver to the Trustee a certificate, signed by one of several
specified officers  of the  Company, stating  whether or  not such  officer  has
knowledge  of any default under  the Indenture and, if  so, specifying each such
default and the nature and status thereof.
 
MODIFICATION OF THE INDENTURE
 
    Modifications and amendments of the Indenture  will be permitted to be  made
only  with the consent of  the Holders of not less  than a majority in principal
amount of all Outstanding Debt Securities or series of
 
                                       10
<PAGE>
Outstanding  Debt  Securities  which  are  affected  by  such  modification   or
amendment;  PROVIDED,  HOWEVER,  that  no such  modification  or  amendment may,
without the consent of the Holder  of each such Debt Security affected  thereby,
(a)  change the Stated Maturity of the principal  of, or premium (if any) or any
installment of interest  on, any such  Debt Security; (b)  reduce the  principal
amount  of, or  the rate  or amount of  interest on,  or any  premium payable on
redemption of, any such Debt Security, or  reduce the amount of principal of  an
Original  Issue Discount Security that would be due and payable upon declaration
of acceleration of the maturity thereof  or would be provable in bankruptcy,  or
adversely affect any right of repayment of the holder of any such Debt Security;
(c)  change  the place  of  payment, or  the coin  or  currency, for  payment of
principal of, premium, if any, or interest on any such Debt Security; (d) impair
the right  to institute  suit for  the enforcement  of any  payment on  or  with
respect  to any  such Debt Security;  (e) reduce the  above-stated percentage of
outstanding Debt  Securities of  any series  necessary to  modify or  amend  the
Indenture,  to  waive  compliance  with certain  provisions  thereof  or certain
defaults  and  consequences  thereunder  or  to  reduce  the  quorum  or  voting
requirements  set forth  in the  Indenture; or (f)  modify any  of the foregoing
provisions or  any of  the provisions  relating to  the waiver  of certain  past
defaults  or certain  covenants, except to  increase the  required percentage to
effect such  action or  to provide  that  certain other  provisions may  not  be
modified  or waived  without the  consent of  the Holder  of such  Debt Security
(Section 902).
 
    The Indenture  provides that  the Holders  of not  less than  a majority  in
principal  amount of a series  of Outstanding Debt Securities  have the right to
waive compliance by the Operating Partnership with certain covenants relating to
such series of Debt Securities in the Indenture (Section 1014).
 
    Modifications and amendments of the Indenture  will be permitted to be  made
by  the Operating Partnership and the Trustee  without the consent of any Holder
of Debt  Securities for  any of  the  following purposes:  (i) to  evidence  the
succession  of another Person to the  Operating Partnership as obligor under the
Indenture; (ii) to  add to the  covenants of the  Operating Partnership for  the
benefit  of the Holders of all or any  series of Debt Securities or to surrender
any right or power  conferred upon the Operating  Partnership in the  Indenture;
(iii)  to add Events  of Default for  the benefit of  the Holders of  all or any
series of Debt Securities; (iv) to add or change any provisions of the Indenture
to facilitate  the  issuance  of,  or  to  liberalize  certain  terms  of,  Debt
Securities  in bearer  form, or  to permit  or facilitate  the issuance  of Debt
Securities in uncertificated form, PROVIDED that such action shall not adversely
affect the interests of the Holders of the Debt Securities of any series in  any
material  respect; (v) to  change or eliminate any  provisions of the Indenture,
PROVIDED that any such  change or elimination shall  become effective only  when
there  are no  Debt Securities Outstanding  of any series  created prior thereto
which are entitled to  the benefit of  such provision; (vi)  to secure the  Debt
Securities;  (vii) to  establish the  form or  terms of  Debt Securities  of any
series; (viii)  to provide  for the  acceptance of  appointment by  a  successor
Trustee  or facilitate the  administration of the trusts  under the Indenture by
more than one Trustee;  (ix) to cure any  ambiguity, defect or inconsistency  in
the  Indenture,  PROVIDED  that  such  action  shall  not  adversely  affect the
interests of Holders of Debt Securities  of any series in any material  respect;
or  (x)  to supplement  any of  the provisions  of the  Indenture to  the extent
necessary to permit or facilitate defeasance and discharge of any series of such
Debt Securities,  PROVIDED  that such  action  shall not  adversely  affect  the
interests  of the Holders of  the Debt Securities of  any series in any material
respect (Section 901).
 
    The Indenture  provides  that in  determining  whether the  Holders  of  the
requisite principal amount of Outstanding Debt Securities of a series have given
any  request,  demand,  authorization,  direction,  notice,  consent  or  waiver
thereunder or  whether a  quorum is  present at  a meeting  of Holders  of  Debt
Securities, (i) the principal amount of an Original Issue Discount Security that
shall  be deemed to be Outstanding shall  be the amount of the principal thereof
that would  be  due and  payable  as of  the  date of  such  determination  upon
declaration  of acceleration of the maturity  thereof, (ii) the principal amount
of a  Debt Security  denominated in  a  foreign currency  that shall  be  deemed
Outstanding  shall be the  U.S. dollar equivalent, determined  on the issue date
for such Debt Security, of the principal amount (or, in the case of an  Original
Issue  Discount Security, the U.S.  dollar equivalent on the  issue date of such
Debt Security of  the amount  determined as provided  in (i)  above), (iii)  the
principal    amount   of   an   Indexed    Security   that   shall   be   deemed
 
                                       11
<PAGE>
Outstanding shall  be the  principal face  amount of  such Indexed  Security  at
original  issuance,  unless  otherwise  provided with  respect  to  such Indexed
Security pursuant  to the  Indenture,  and (iv)  Debt  Securities owned  by  the
Operating  Partnership  or any  other obligor  upon the  Debt Securities  or any
affiliate of  the  Operating Partnership  or  of  such other  obligor  shall  be
disregarded.
 
    The  Indenture contains provisions for convening  meetings of the Holders of
Debt Securities of a series  (Section 1501). A meeting  will be permitted to  be
called  at any  time by the  Trustee, and  also, upon request,  by the Operating
Partnership or  the  holders  of  at  least  10%  in  principal  amount  of  the
Outstanding  Debt Securities of such series, in  any such case upon notice given
as provided in the Indenture (Section 1502). Except for any consent that must be
given by the Holder of each Debt Security affected by certain modifications  and
amendments  of the Indenture, any resolution presented at a meeting or adjourned
meeting duly reconvened at  which a quorum  is present will  be permitted to  be
adopted by the affirmative vote of the Holders of a majority in principal amount
of  the Outstanding  Debt Securities  of that  series; PROVIDED,  HOWEVER, that,
except as referred to above, any resolution with respect to any request, demand,
authorization, direction, notice, consent,  waiver or other  action that may  be
made,  given or taken  by the Holders  of a specified  percentage, which is less
than a majority,  in principal amount  of the Outstanding  Debt Securities of  a
series may be adopted at a meeting or adjourned meeting duly reconvened at which
a  quorum is present  by the affirmative  vote of the  Holders of such specified
percentage in  principal  amount of  the  Outstanding Debt  Securities  of  that
series.  Any resolution passed  or decision taken  at any meeting  of Holders of
Debt Securities of any series duly held in accordance with the Indenture will be
binding on all  Holders of Debt  Securities of  that series. The  quorum at  any
meeting  called to adopt  a resolution, and  at any reconvened  meeting, will be
Persons  holding  or  representing  a  majority  in  principal  amount  of   the
Outstanding  Debt Securities of a series;  PROVIDED, HOWEVER, that if any action
is to be taken at such meeting with respect to a consent or waiver which may  be
given by the Holders of not less than a specified percentage in principal amount
of  the  Outstanding  Debt  Securities  of  a  series,  the  Persons  holding or
representing such specified  percentage in principal  amount of the  Outstanding
Debt Securities of such series will constitute a quorum (Section 1504).
 
    Notwithstanding  the foregoing provisions, if any action is to be taken at a
meeting of Holders of Debt Securities of any series with respect to any request,
demand, authorization, direction, notice, consent,  waiver or other action  that
the Indenture expressly provides may be made, given or taken by the Holders of a
specified  percentage  in principal  amount of  all Outstanding  Debt Securities
affected thereby, or of the  Holders of such series  and one or more  additional
series:  (i) there shall be  no minimum quorum requirement  for such meeting and
(ii) the principal amount of the Outstanding Debt Securities of such series that
vote in  favor  of  such  request,  demand,  authorization,  direction,  notice,
consent,  waiver  or other  action shall  be taken  into account  in determining
whether such request, demand, authorization, direction, notice, consent,  waiver
or  other action  has been  made, given  or taken  under the  Indenture (Section
1504).
 
DISCHARGE, DEFEASANCE AND COVENANT DEFEASANCE
 
    The Operating Partnership  may discharge certain  obligations to Holders  of
any  series  of Debt  Securities that  have  not already  been delivered  to the
Trustee for cancellation  and that either  have become due  and payable or  will
become  due and payable within one year  (or scheduled for redemption within one
year) by  irrevocably depositing  with  the Trustee,  in  trust, funds  in  such
currency  or  currencies,  currency  unit  or  units  or  composite  currency or
currencies in which such Debt Securities are payable in an amount sufficient  to
pay the entire indebtedness on such Debt Securities in respect of principal (and
premium,  if  any)  and interest  to  the date  of  such deposit  (if  such Debt
Securities have become due and payable) or to the Stated Maturity or  Redemption
Date, as the case may be (Sections 1401 and 1404).
 
    The  Indenture provides that, if the provisions of Article Fourteen are made
applicable to the Debt  Securities of or within  any series pursuant to  Section
301  of the Indenture, the Operating Partnership may elect either (a) to defease
and be  discharged  from any  and  all obligations  with  respect to  such  Debt
Securities  (except for the  obligation to pay additional  amounts, if any, upon
the occurrence of certain events of tax,
 
                                       12
<PAGE>
assessment or  governmental  charge  with  respect  to  payments  on  such  Debt
Securities and the obligations to register the transfer or exchange of such Debt
Securities,  to replace temporary  or mutilated, destroyed,  lost or stolen Debt
Securities, to maintain an office or  agency in respect of such Debt  Securities
and to hold moneys for payment in trust) ("defeasance") (Section 1402) or (b) to
be  released from  its obligations  with respect  to such  Debt Securities under
Sections 1004 to 1011, inclusive,  of the Indenture (including the  restrictions
described  under "Certain  Covenants") and its  obligations with  respect to any
other covenant,  and any  omission to  comply with  such obligations  shall  not
constitute a default or an Event of Default with respect to such Debt Securities
("covenant  defeasance")  (Section 1403),  in either  case upon  the irrevocable
deposit by the Operating Partnership with  the Trustee, in trust, of an  amount,
in  such currency or currencies, currency unit or units or composite currency or
currencies in which  such Debt  Securities are  payable at  Stated Maturity,  or
Government  Obligations (as  defined below),  or both,  applicable to  such Debt
Securities which  through the  scheduled payment  of principal  and interest  in
accordance  with their terms will  provide money in an  amount sufficient to pay
the principal of (and premium, if any) and interest on such Debt Securities, and
any mandatory sinking fund or analogous  payments thereon, on the scheduled  due
dates therefor.
 
    Such  a  trust will  only be  permitted  to be  established if,  among other
things, the Operating  Partnership has delivered  to the Trustee  an Opinion  of
Counsel  (as specified in the Indenture) to  the effect that the Holders of such
Debt Securities will not recognize income, gain or loss for U.S. federal  income
tax  purposes as a result of such  defeasance or covenant defeasance and will be
subject to U.S. federal income tax on  the same amounts, in the same manner  and
at  the same times  as would have been  the case if  such defeasance or covenant
defeasance had  not  occurred, and  such  Opinion of  Counsel,  in the  case  of
defeasance,  must refer to  and be based  upon a ruling  of the Internal Revenue
Service or a change in applicable United States federal income tax law occurring
after the date of the Indenture (Section 1404).
 
    "Government Obligations" means securities  which are (i) direct  obligations
of  the United  States of  America or  the government  which issued  the foreign
currency in which the  Debt Securities of a  particular series are payable,  for
the payment of which its full faith and credit is pledged or (ii) obligations of
a  person controlled or supervised by and acting as an agency or instrumentality
of the United  States of  America or such  government which  issued the  foreign
currency in which the Debt Securities of such series are payable, the payment of
which is unconditionally guaranteed as a full faith and credit obligation by the
United  States of America or  such other government, which,  in either case, are
not callable or redeemable at the option  of the issuer thereof, and shall  also
include a depository receipt issued by a bank or trust company as custodian with
respect  to any such Government Obligation or  a specific payment of interest on
or principal of any  such Government Obligation held  by such custodian for  the
account of the holder of a depository receipt, PROVIDED that (except as required
by  law) such custodian is not authorized  to make any deduction from the amount
payable to the holder of such depository receipt from any amount received by the
custodian in respect  of the Government  Obligation or the  specific payment  of
interest  on  or  principal  of  the  Government  Obligation  evidenced  by such
depository receipt.
 
    Unless otherwise provided in the applicable Prospectus Supplement, if  after
the  Operating Partnership has deposited  funds and/or Government Obligations to
effect defeasance or covenant defeasance with respect to Debt Securities of  any
series,  (a) the Holder  of a Debt Security  of such series  is entitled to, and
does, elect pursuant  to the Indenture  or the  terms of such  Debt Security  to
receive  payment in a  currency, currency unit or  composite currency other than
that in which such deposit  has been made in respect  of such Debt Security,  or
(b)  a Conversion Event  (as defined below)  occurs in respect  of the currency,
currency unit or  composite currency in  which such deposit  has been made,  the
indebtedness represented by such Debt Security shall be deemed to have been, and
will  be, fully discharged and satisfied through the payment of the principal of
(and premium, if any) and interest on such Debt Security as they become due  out
of the proceeds yielded by converting the amount so deposited in respect of such
Debt  Security into the  currency, currency unit or  composite currency in which
such Debt  Security  becomes  payable as  a  result  of such  election  or  such
Conversion  Event  based on  the  applicable market  exchange  rate. "Conversion
Event" means the cessation
 
                                       13
<PAGE>
of use  of (i)  a currency,  currency unit  or composite  currency both  by  the
government  of the country which issued such  currency and for the settlement of
transactions by a  central bank or  other public institutions  of or within  the
international  banking community, (ii) the ECU both within the European Monetary
System and  for the  settlement of  transactions by  public institutions  of  or
within  the European Community or (iii)  any currency unit or composite currency
other than  the  ECU for  the  purposes for  which  it was  established.  Unless
otherwise  provided  in the  applicable Prospectus  Supplement, all  payments of
principal of (and premium,  if any) and  interest on any  Debt Security that  is
payable  in  a foreign  currency that  ceases to  be used  by its  government of
issuance shall be made in U.S. dollars.
 
    In the  event the  Operating Partnership  effects covenant  defeasance  with
respect  to any Debt  Securities and such  Debt Securities are  declared due and
payable because of the occurrence of any  Event of Default other than the  Event
of  Default described in clause (d) under "Events of Default, Notice and Waiver"
with respect  to Sections  1004  to 1011,  inclusive,  of the  Indenture  (which
sections  would no longer be applicable to such Debt Securities) or described in
clause (g) under  "Events of  Default, Notice and  Waiver" with  respect to  any
other  covenant as to  which there has  been covenant defeasance,  the amount in
such currency, currency unit or composite currency in which such Debt Securities
are payable, and  Government Obligations on  deposit with the  Trustee, will  be
sufficient  to pay  amounts due  on such  Debt Securities  at the  time of their
Stated Maturity  but may  not be  sufficient to  pay amounts  due on  such  Debt
Securities at the time of the acceleration resulting from such Event of Default.
However,  the Operating Partnership would remain  liable to make payment of such
amounts due at the time of acceleration.
 
    The applicable Prospectus Supplement may further describe the provisions, if
any,  permitting  such   defeasance  or  covenant   defeasance,  including   any
modifications  to  the  provisions described  above,  with respect  to  the Debt
Securities of or within a particular series.
 
NO CONVERSION RIGHTS
 
    The Debt Securities  will not be  convertible into or  exchangeable for  any
capital stock of the Company or equity interest in the Operating Partnership.
 
GLOBAL SECURITIES
 
    The  Debt Securities of  a series may be  issued in whole or  in part in the
form of one  or more global  securities (the "Global  Securities") that will  be
deposited  with, or on behalf of,  a depositary (the "Depositary") identified in
the applicable Prospectus Supplement relating to such series. Global  Securities
may  be issued in  either registered or  bearer form and  in either temporary or
permanent form. The specific terms of the depositary arrangement with respect to
a series  of Debt  Securities will  be described  in the  applicable  Prospectus
Supplement relating to such series.
 
                         DESCRIPTION OF PREFERRED STOCK
 
GENERAL
 
    The Company is authorized to issue 5,000,000 shares of preferred stock, $.01
par  value per share,  of which no  Preferred Stock was  outstanding at June 30,
1995.
 
    The following description of the Preferred Stock sets forth certain  general
terms  and provisions of the Preferred  Stock to which any Prospectus Supplement
may relate.  The statements  below describing  the Preferred  Stock are  in  all
respects  subject  to  and  qualified  in their  entirety  by  reference  to the
applicable  provisions  of  the  Company's  Amended  and  Restated  Articles  of
Incorporation  (the "Articles of  Incorporation") and Bylaws  and any applicable
amendment to the  Articles of  Incorporation designating  terms of  a series  of
Preferred Stock (a "Designating Amendment").
 
TERMS
 
    Subject  to the limitations prescribed by the Articles of Incorporation, the
board of directors is authorized to  fix the number of shares constituting  each
series    of    Preferred    Stock   and    the    designations    and   powers,
 
                                       14
<PAGE>
preferences and relative,  participating, optional or  other special rights  and
qualifications,  limitations or restrictions  thereof, including such provisions
as may be desired concerning  voting, redemption, dividends, dissolution or  the
distribution  of  assets, conversion  or exchange,  and  such other  subjects or
matters as may be fixed by resolution  of the board of directors. The  Preferred
Stock  will, when issued, be fully paid and nonassessable by the Company (except
as described under "-- Shareholder Liability" below) and will have no preemptive
rights.
 
    Reference is made  to the  Prospectus Supplement relating  to the  Preferred
Stock offered thereby for specific terms, including:
 
    (1) The title and stated value of such Preferred Stock;
 
    (2) The  number of shares  of such Preferred  Stock offered, the liquidation
        preference per share and the offering price of such Preferred Stock;
 
    (3) The dividend rate(s), period(s) and/or  payment date(s) or method(s)  of
        calculation thereof applicable to such Preferred Stock;
 
    (4) The  date from which dividends on such Preferred Stock shall accumulate,
        if applicable;
 
    (5) The procedures  for  any  auction  and remarketing,  if  any,  for  such
        Preferred Stock;
 
    (6) The provision for a sinking fund, if any, for such Preferred Stock;
 
    (7) The provision for redemption, if applicable, of such Preferred Stock;
 
    (8) Any listing of such Preferred Stock on any securities exchange;
 
    (9) The terms and conditions, if applicable, upon which such Preferred Stock
        will  be convertible  into Common  Stock of  the Company,  including the
        conversion price (or manner of calculation thereof);
 
   (10) Whether interests  in  such  Preferred  Stock  will  be  represented  by
        Depositary Shares;
 
   (11) Any   other   specific  terms,   preferences,  rights,   limitations  or
        restrictions of such Preferred Stock;
 
   (12) A discussion of  federal income  tax considerations  applicable to  such
        Preferred Stock;
 
   (13) The  relative  ranking and  preferences of  such  Preferred Stock  as to
        dividend rights and rights upon  liquidation, dissolution or winding  up
        of the affairs of the Company;
 
   (14) Any  limitations on  issuance of any  series of  Preferred Stock ranking
        senior to or  on a  parity with  such series  of Preferred  Stock as  to
        dividend  rights and rights upon  liquidation, dissolution or winding up
        of the affairs of the Company; and
 
   (15) Any limitations on  direct or beneficial  ownership and restrictions  on
        transfer,  in each case as may be  appropriate to preserve the status of
        the Company as a REIT.
 
RANK
 
    Unless otherwise specified in the Prospectus Supplement, the Preferred Stock
will, with respect to dividend  rights and rights upon liquidation,  dissolution
or winding up of the Company, rank (i) senior to all classes or series of Common
Stock  of  the Company,  and to  all  equity securities  ranking junior  to such
Preferred Stock;  (ii) on  a parity  with all  equity securities  issued by  the
Company the terms of which specifically provide that such equity securities rank
on  a parity with the Preferred Stock; and (iii) junior to all equity securities
issued by the Company the terms  of which specifically provide that such  equity
securities rank senior to the Preferred Stock. The term "equity securities" does
not include convertible debt securities.
 
DIVIDENDS
 
    Holders  of the Preferred Stock of each  series will be entitled to receive,
when, as and if declared by the board of directors of the Company, out of assets
of the Company legally available for payment, cash
 
                                       15
<PAGE>
dividends at such rates and on such dates as will be set forth in the applicable
Prospectus Supplement. Each such dividend shall be payable to holders of  record
as  they appear on the share transfer books  of the Company on such record dates
as shall be fixed by the board of directors of the Company.
 
    Dividends on  any  series  of  the Preferred  Stock  may  be  cumulative  or
non-cumulative,  as provided in the applicable Prospectus Supplement. Dividends,
if cumulative, will  be cumulative  from and  after the  date set  forth in  the
applicable Prospectus Supplement. If the board of directors of the Company fails
to  declare a dividend payable  on a dividend payment date  on any series of the
Preferred Stock for which dividends are non-cumulative, then the holders of such
series of  the Preferred  Stock will  have no  right to  receive a  dividend  in
respect  of the dividend  period ending on  such dividend payment  date, and the
Company will have  no obligation to  pay the dividend  accrued for such  period,
whether  or not  dividends on  such series  are declared  payable on  any future
dividend payment date.
 
    If Preferred  Stock of  any  series is  outstanding,  no dividends  will  be
declared or paid or set apart for payment on any capital stock of the Company of
any  other series ranking,  as to dividends, on  a parity with  or junior to the
Preferred Stock of  such series  for any  period unless  (i) if  such series  of
Preferred  Stock has a cumulative dividend,  full cumulative dividends have been
or contemporaneously are declared and paid or declared and a sum sufficient  for
the  payment thereof set apart  for such payment on  the Preferred Stock of such
series for all  past dividend periods  and the then  current dividend period  or
(ii) if such series of Preferred Stock does not have a cumulative dividend, full
dividends  for the then  current dividend period  have been or contemporaneously
are declared and paid or declared and  a sum sufficient for the payment  thereof
set apart for such payment on the Preferred Stock of such series. When dividends
are  not paid in full (or  a sum sufficient for such  full payment is not so set
apart) upon Preferred Stock of any series and the shares of any other series  of
Preferred  Stock ranking on a parity as to dividends with the Preferred Stock of
such series, all dividends declared upon Preferred Stock of such series and  any
other  series of Preferred Stock  ranking on a parity  as to dividends with such
Preferred Stock  shall be  declared pro  rata so  that the  amount of  dividends
declared  per share of Preferred  Stock of such series  and such other series of
Preferred Stock  shall in  all cases  bear to  each other  the same  ratio  that
accrued  dividends per share on the Preferred  Stock of such series (which shall
not include any accumulation in respect  of unpaid dividends for prior  dividend
periods  if such Preferred Stock  does not have a  cumulative dividend) and such
other series of Preferred Stock bear to each other. No interest, or sum of money
in lieu of  interest, shall be  payable in  respect of any  dividend payment  or
payments on Preferred Stock of such series which may be in arrears.
 
    Except  as provided  in the immediately  preceding paragraph,  unless (i) if
such series  of  Preferred Stock  has  a cumulative  dividend,  full  cumulative
dividends  on the Preferred Stock of  such series have been or contemporaneously
are declared and paid or declared and  a sum sufficient for the payment  thereof
set  apart  for payment  for  all past  dividend  periods and  the  then current
dividend period, and  (ii) if such  series of  Preferred Stock does  not have  a
cumulative  dividend, full dividends on the  Preferred Stock of such series have
been or contemporaneously are declared and paid or declared and a sum sufficient
for the payment  thereof set  apart for payment  for the  then current  dividend
period,  no dividends  (other than  in shares of  Common Stock  or other capital
shares ranking junior to the Preferred Stock of such series as to dividends  and
upon  liquidation) shall be declared  or paid or set  aside for payment or other
distribution shall  be declared  or made  upon the  Common Stock,  or any  other
capital  shares  of  the Company  ranking  junior to  or  on a  parity  with the
Preferred Stock of such  series as to dividends  or upon liquidation, nor  shall
any  shares of Common Stock, or any  other capital shares of the Company ranking
junior to or on a parity with the Preferred Stock of such series as to dividends
or upon  liquidation  be  redeemed,  purchased or  otherwise  acquired  for  any
consideration (or any moneys be paid to or made available for a sinking fund for
the  redemption of any such shares) by the Company (except by conversion into or
exchange for other capital shares of the Company ranking junior to the Preferred
Stock of such series as to dividends and upon liquidation).
 
                                       16
<PAGE>
REDEMPTION
 
    If so provided in the applicable Prospectus Supplement, the Preferred  Stock
will  be subject  to mandatory  redemption or  redemption at  the option  of the
Company, as a whole or in part, in each case upon the terms, at the times and at
the redemption prices set forth in such Prospectus Supplement.
 
    The Prospectus Supplement relating  to a series of  Preferred Stock that  is
subject  to  mandatory redemption  will  specify the  number  of shares  of such
Preferred Stock that shall  be redeemed by the  Company in each year  commencing
after  a date to be specified, at a  redemption price per share to be specified,
together with an amount equal to all accrued and unpaid dividends thereon (which
shall not, if such Preferred Stock does not have a cumulative dividend,  include
any  accumulation in respect of unpaid  dividends for prior dividend periods) to
the date of redemption.  The redemption price  may be payable  in cash or  other
property,   as  specified  in  the  applicable  Prospectus  Supplement.  If  the
redemption price for Preferred Stock of any series is payable only from the  net
proceeds  of the issuance  of capital shares  of the Company,  the terms of such
Preferred Stock may  provide that,  if no such  capital shares  shall have  been
issued  or to the extent the net  proceeds from any issuance are insufficient to
pay in full the aggregate redemption price then due, such Preferred Stock  shall
automatically and mandatorily be converted into the applicable capital shares of
the  Company  pursuant  to  conversion provisions  specified  in  the applicable
Prospectus Supplement.
 
    Notwithstanding the foregoing, unless (i) if such series of Preferred  Stock
has a cumulative dividend, full cumulative dividends on all shares of any series
of Preferred Stock shall have been or contemporane-
ously  are declared and  paid or declared  and a sum  sufficient for the payment
thereof set apart for payment for all past dividend periods and the then current
dividend period, and  (ii) if such  series of  Preferred Stock does  not have  a
cumulative  dividend, full dividends  of the Preferred Stock  of any series have
been or contemporaneously are declared and paid or declared and a sum sufficient
for the payment  thereof set  apart for payment  for the  then current  dividend
period,  no shares of any series of Preferred Stock shall be redeemed unless all
outstanding Preferred Stock of such series is simultaneously redeemed; PROVIDED,
HOWEVER, that the  foregoing shall not  prevent the purchase  or acquisition  of
Preferred  Stock of such  series to preserve  the REIT status  of the Company or
pursuant to a purchase or  exchange offer made on the  same terms to holders  of
all  outstanding Preferred Stock of such series. In addition, unless (i) if such
series of Preferred Stock has  a cumulative dividend, full cumulative  dividends
on  all  outstanding  shares of  any  series  of Preferred  Stock  have  been or
contemporaneously are declared and paid or declared and a sum sufficient for the
payment thereof set  apart for payment  for all past  dividends periods and  the
then  current dividend period, and  (ii) if such series  of Preferred Stock does
not have a  cumulative dividend, full  dividends on the  Preferred Stock of  any
series  have been or contemporaneously  are declared and paid  or declared and a
sum sufficient  for the  payment thereof  set  apart for  payment for  the  then
current  dividend period,  the Company shall  not purchase  or otherwise acquire
directly or indirectly any shares of  Preferred Stock of such series (except  by
conversion  into or exchange for capital shares of the Company ranking junior to
the Preferred  Stock of  such  series as  to  dividends and  upon  liquidation);
PROVIDED,  HOWEVER,  that  the  foregoing  shall  not  prevent  the  purchase or
acquisition of Preferred Stock of such series to preserve the REIT status of the
Company or pursuant to a  purchase or exchange offer made  on the same terms  to
holders of all outstanding Preferred Stock of such series.
 
    If fewer than all of the outstanding shares of Preferred Stock of any series
are  to be redeemed, the  number of shares to be  redeemed will be determined by
the Company and such shares may be redeemed pro rata from the holders of  record
of  such shares  in proportion to  the number of  such shares held  or for which
redemption is requested by such holder (with adjustments to avoid redemption  of
fractional shares) or by lot in a manner determined by the Company.
 
    Notice  of redemption will be  mailed at least 30 days  but not more than 60
days before the redemption date to each  holder of record of Preferred Stock  of
any  series to be redeemed  at the address shown on  the share transfer books of
the Company. Each notice shall state:  (i) the redemption date; (ii) the  number
of
 
                                       17
<PAGE>
shares  and series of the  Preferred Stock to be  redeemed; (iii) the redemption
price; (iv) the place or places where certificates for such Preferred Stock  are
to be surrendered for payment of the redemption price; (v) that dividends on the
shares to be redeemed will cease to accrue on such redemption date; and (vi) the
date  upon which the holder's conversion rights, if any, as to such shares shall
terminate. If fewer than all the shares of Preferred Stock of any series are  to
be  redeemed, the notice mailed  to each such holder  thereof shall also specify
the number of shares of Preferred Stock to be redeemed from each such holder. If
notice of redemption  of any Preferred  Stock has  been given and  if the  funds
necessary  for such redemption have  been set aside by  the Company in trust for
the benefit of the holders of any Preferred Stock so called for redemption, then
from and  after the  redemption date  dividends  will cease  to accrue  on  such
Preferred  Stock, and all rights  of the holders of  such shares will terminate,
except the right to receive the redemption price.
 
LIQUIDATION PREFERENCE
 
    Upon any voluntary or involuntary liquidation, dissolution or winding up  of
the  affairs of the Company,  then, before any distribution  or payment shall be
made to the holders of any Common Stock or any other class or series of  capital
shares  of the Company ranking junior to the Preferred Stock in the distribution
of assets upon any  liquidation, dissolution or winding  up of the Company,  the
holders  of each series of  Preferred Stock shall be  entitled to receive out of
assets of  the  Company  legally  available  for  distribution  to  shareholders
liquidating  distributions in the amount of the liquidation preference per share
(set forth in the applicable Prospectus Supplement), plus an amount equal to all
dividends accrued and unpaid thereon  (which shall not include any  accumulation
in  respect of  unpaid dividends  for prior  dividend periods  if such Preferred
Stock does not have a cumulative dividend). After payment of the full amount  of
the  liquidating  distributions  to  which they  are  entitled,  the  holders of
Preferred Stock will have no  right or claim to any  of the remaining assets  of
the  Company.  In  the  event  that,  upon  any  such  voluntary  or involuntary
liquidation, dissolution or winding up, the available assets of the Company  are
insufficient  to  pay  the  amount  of  the  liquidating  distributions  on  all
outstanding Preferred Stock and the corresponding amounts payable on all  shares
of  other classes or series of capital shares of the Company ranking on a parity
with the Preferred Stock in the distribution of assets, then the holders of  the
Preferred  Stock and all  other such classes  or series of  capital shares shall
share ratably  in any  such distribution  of assets  in proportion  to the  full
liquidating   distributions  to  which  they  would  otherwise  be  respectively
entitled.
 
    If liquidating distributions shall have been made in full to all holders  of
Preferred  Stock, the remaining assets of the Company shall be distributed among
the holders of any other classes or  series of capital shares ranking junior  to
the  Preferred Stock upon  liquidation, dissolution or  winding up, according to
their respective rights  and preferences  and in  each case  according to  their
respective  number of shares. For such  purposes, the consolidation or merger of
the Company with or into  any other corporation, trust  or entity, or the  sale,
lease  or conveyance of all or substantially  all of the property or business of
the Company, shall  not be deemed  to constitute a  liquidation, dissolution  or
winding up of the Company.
 
VOTING RIGHTS
 
    Holders  of the Preferred Stock  will not have any  voting rights, except as
set forth  below or  as  otherwise from  time  to time  required  by law  or  as
indicated in the applicable Prospectus Supplement.
 
    Whenever  dividends on any shares of Preferred Stock shall be in arrears for
six or  more  consecutive quarterly  periods,  the  holders of  such  shares  of
Preferred Stock (voting separately as a class with all other series of preferred
stock  upon which  like voting rights  have been conferred  and are exercisable)
will be entitled to  vote for the  election of two  additional directors of  the
Company  at a special  meeting called by the  holders of record  of at least ten
percent (10%)  of any  series of  Preferred  stock so  in arrears  (unless  such
request  is received less than 90 days before the date fixed for the next annual
or special  meeting  of the  stockholders)  or at  the  next annual  meeting  of
stockholders,  and at each subsequent annual meeting until (i) if such series of
Preferred Stock has  a cumulative  dividend, all dividends  accumulated on  such
shares  of Preferred Stock  for the past  dividend periods and  the then current
dividend period shall have been fully paid or declared and a sum sufficient  for
the   payment  thereof  set  aside  for  payment  or  (ii)  if  such  series  of
 
                                       18
<PAGE>
Preferred Stock does not have a cumulative dividend, four consecutive  quarterly
dividends  shall have been fully  paid or declared and  a sum sufficient for the
payment thereof  set  aside for  payment.  In such  case,  the entire  board  of
directors of the Company will be increased by two directors.
 
    Unless  provided otherwise for any series of Preferred Stock, so long as any
shares of Preferred Stock remain outstanding, the Company will not, without  the
affirmative  vote or consent of the holders of at least two-thirds of the shares
of each series of Preferred Stock outstanding at the time, given in person or by
proxy, either in writing  or at a  meeting (such series  voting separately as  a
class), (i) authorize or create, or increase the authorized or issued amount of,
any  class or series of capital stock  ranking prior to such series of Preferred
Stock with respect to  payment of dividends or  the distribution of assets  upon
liquidation,  dissolution  or winding  up or  reclassify any  authorized capital
stock of  the  Company into  such  shares, or  create,  authorize or  issue  any
obligation  or security convertible into or evidencing the right to purchase any
such shares; or  (ii) amend,  alter or repeal  the provisions  of the  Company's
Articles  of  Incorporation  or the  Designating  Amendment for  such  series of
Preferred Stock, whether by merger, consolidation or otherwise (an "Event"),  so
as to materially and adversely affect any right, preference, privilege or voting
power  of  such series  of  Preferred Stock  or  the holders  thereof; PROVIDED,
HOWEVER, with respect to the occurrence of  any of the Events set forth in  (ii)
above, so long as the Preferred Stock remains outstanding with the terms thereof
materially  unchanged, taking into account that upon the occurrence of an Event,
the Company may not be  the surviving entity, the  occurrence of any such  Event
shall not be deemed to materially and adversely affect such rights, preferences,
privileges  or voting power  of holders of Preferred  Stock and provided further
that (x) any increase  in the amount  of the authorized  Preferred Stock or  the
creation or issuance of any other series of Preferred Stock, or (y) any increase
in  the  amount of  authorized  shares of  such series  or  any other  series of
Preferred Stock,  in  each case  ranking  on a  parity  with or  junior  to  the
Preferred  Stock of  such series  with respect  to payment  of dividends  or the
distribution of assets upon liquidation, dissolution or winding up, shall not be
deemed to materially and adversely  affect such rights, preferences,  privileges
or voting powers.
 
    The  foregoing voting provisions will not apply  if, at or prior to the time
when the act with respect to which  such vote would otherwise be required  shall
be effected, all outstanding shares of such series of Preferred Stock shall have
been  redeemed or  called for  redemption and  sufficient funds  shall have been
deposited in trust to effect such redemption.
 
    Under Indiana law, notwithstanding anything to the contrary set forth above,
holders of each series of  Preferred Stock will be entitled  to vote as a  class
upon  any proposed  amendment to the  Articles of Incorporation,  whether or not
entitled to vote  thereon by  the Articles  of Incorporation,  if the  amendment
would (i) increase or decrease the aggregate number of authorized shares of such
series; (ii) effect an exchange or reclassification of all or part of the shares
of  the  series into  shares  of another  series;  (iii) effect  an  exchange or
reclassification, or create the right of exchange, of all or part of the  shares
of  another  class  or  series  into  shares  of  the  series;  (iv)  change the
designation, rights, preferences or limitations of  all or a part of the  shares
of  the  series; (v)  change the  shares of  all or  part of  the series  into a
different number of shares of the same  series; (vi) create a new series  having
rights  or preferences  with respect  to distributions  or dissolution  that are
prior, superior  or substantially  equal  to the  shares  of the  series;  (vii)
increase  the rights, preferences or number of authorized shares of any class or
series that, after giving  effect to the amendment,  have rights or  preferences
with  respect to  distributions or  to dissolution  that are  prior, superior or
substantially equal  to  the shares  of  the series;  (viii)  limit or  deny  an
existing  preemptive right of all  or part of the shares  of the series; or (ix)
cancel or  otherwise  affect rights  to  distributions or  dividends  that  have
accumulated  but have not yet been declared on  all or part of the shares of the
series.
 
CONVERSION RIGHTS
 
    The terms and conditions, if any,  upon which any series of Preferred  Stock
is  convertible into shares of Common Stock  will be set forth in the applicable
Prospectus Supplement relating thereto.  Such terms will  include the number  of
shares of Common Stock into which the shares of Preferred Stock are convertible,
the  conversion price (or manner of calculation thereof), the conversion period,
provisions as to whether
 
                                       19
<PAGE>
conversion will be at the  option of the holders of  the Preferred Stock or  the
Company,  the  events  requiring  an  adjustment  of  the  conversion  price and
provisions affecting conversion in the event of the redemption of such series of
Preferred Stock.
 
SHAREHOLDER LIABILITY
 
    As  discussed  below  under  "Description  of  Common  Stock  --   General,"
applicable  Indiana  law  provides  that no  shareholder,  including  holders of
Preferred Stock, shall be personally liable for the acts and obligations of  the
Company  and  that the  funds  and property  of the  Company  shall be  the only
recourse for such acts or obligations.
 
RESTRICTIONS ON OWNERSHIP
 
    As discussed below under "Description of Common Stock -- Certain  Provisions
Affecting  Change of Control,"  for the Company  to qualify as  a REIT under the
Internal Revenue Code of  1986, as amended  (the "Code"), not  more than 50%  in
value of its outstanding capital shares may be owned, directly or indirectly, by
five  or fewer individuals (as defined in  the Code to include certain entities)
during the last half of  a taxable year. To assist  the Company in meeting  this
requirement,  the  Company  may take  certain  actions to  limit  the beneficial
ownership,  directly  or  indirectly,  by  a  single  person  of  the  Company's
outstanding  equity securities,  including any  Preferred Stock  of the Company.
Therefore, the  Designating Amendment  for each  series of  Preferred Stock  may
contain  provisions  restricting the  ownership  and transfer  of  the Preferred
Stock.  The  applicable  Prospectus  Supplement  will  specify  any   additional
ownership limitation relating to a series of Preferred Stock.
 
REGISTRAR AND TRANSFER AGENT
 
    The  Registrar and Transfer Agent for the  Preferred Stock will be set forth
in the applicable Prospectus Supplement.
 
                        DESCRIPTION OF DEPOSITARY SHARES
 
GENERAL
 
    The Company  may  issue  receipts  ("Depositary  Receipts")  for  Depositary
Shares,  each of  which will  represent a  fractional interest  of a  share of a
particular series of Preferred Stock, as specified in the applicable  Prospectus
Supplement.  Shares of Preferred Stock of  each series represented by Depositary
Shares will be deposited  under a separate deposit  agreement (each, a  "Deposit
Agreement")  among the Company, the depositary named therein (a "Preferred Stock
Depositary") and  the holders  from time  to time  of the  Depositary  Receipts.
Subject  to  the terms  of the  applicable  Deposit Agreement,  each owner  of a
Depositary Receipt will be entitled, in proportion to the fractional interest of
a share of a particular series of Preferred Stock represented by the  Depositary
Shares  evidenced by such Depositary Receipt,  to all the rights and preferences
of  the  Preferred  Stock  represented  by  such  Depositary  Shares  (including
dividend, voting, conversion, redemption and liquidation rights).
 
    The  Depositary  Shares  will  be evidenced  by  Depositary  Receipts issued
pursuant to the applicable Deposit Agreement. Immediately following the issuance
and delivery  of  the  Preferred Stock  by  the  Company to  a  Preferred  Stock
Depositary,  the Company will cause such Preferred Stock Depositary to issue, on
behalf of the Company, the Depositary Receipts. Copies of the applicable form of
Deposit Agreement and Depositary Receipt may  be obtained from the Company  upon
request,  and the statements  made hereunder relating  to Deposit Agreements and
the Depositary  Receipts  to  be  issued thereunder  are  summaries  of  certain
anticipated provisions thereof and do not purport to be complete and are subject
to,  and qualified in their  entirety by reference to,  all of the provisions of
the applicable Deposit Agreement and related Depositary Receipts.
 
DIVIDENDS AND OTHER DISTRIBUTIONS
 
    A Preferred  Stock  Depositary  will  be required  to  distribute  all  cash
dividends  or other  cash distributions  received in  respect of  the applicable
Preferred  Stock  to  the  record  holders  of  Depositary  Receipts  evidencing
 
                                       20
<PAGE>
the  related Depositary  Shares in proportion  to the number  of such Depositary
Receipts owned by  such holders, subject  to certain obligations  of holders  to
file  proofs, certificates and other information  and to pay certain charges and
expenses to such Preferred Stock Depositary.
 
    In the  event  of a  distribution  other than  in  cash, a  Preferred  Stock
Depositary  will be required to distribute property received by it to the record
holders of Depositary Receipts entitled thereto, subject to certain  obligations
of holders to file proofs, certificates and other information and to pay certain
charges  and expenses to such Preferred  Stock Depositary, unless such Preferred
Stock Depositary determines that it is  not feasible to make such  distribution,
in  which case  such Preferred  Stock Depositary may,  with the  approval of the
Company, sell such property  and distribute the net  proceeds from such sale  to
such holders.
 
    No  distribution will  be made  in respect  of any  Depositary Share  to the
extent that  it represents  any  Preferred Stock  which  has been  converted  or
exchanged.
 
WITHDRAWAL OF STOCK
 
    Upon  surrender of the Depositary Receipts  at the corporate trust office of
the applicable Preferred Stock Depositary (unless the related Depositary  Shares
have  previously been called  for redemption or  converted), the holders thereof
will be entitled  to delivery  at such  office, to  or upon  each such  holder's
order,  of the number of whole or  fractional shares of the applicable Preferred
Stock and  any money  or other  property represented  by the  Depositary  Shares
evidenced  by such Depositary  Receipts. Holders of  Depositary Receipts will be
entitled to receive whole or fractional shares of the related Preferred Stock on
the basis of the  proportion of Preferred Stock  represented by each  Depositary
Share  as specified in the applicable Prospectus Supplement, but holders of such
shares of Preferred Stock will not thereafter be entitled to receive  Depositary
Shares  therefor. If the Depositary Receipts  delivered by the holder evidence a
number of  Depositary  Shares in  excess  of  the number  of  Depositary  Shares
representing  the  number of  shares  of Preferred  Stock  to be  withdrawn, the
applicable Preferred Stock Depositary will be required to deliver to such holder
at the  same time  a new  Depositary Receipt  evidencing such  excess number  of
Depositary Shares.
 
REDEMPTION OF DEPOSITARY SHARES
 
    Whenever  the Company redeems shares of  Preferred Stock held by a Preferred
Stock Depositary, such Preferred Stock Depositary will be required to redeem  as
of  the same redemption date the number of Depositary Shares representing shares
of the Preferred Stock so redeemed, provided the Company shall have paid in full
to such Preferred Stock Depositary the  redemption price of the Preferred  Stock
to  be redeemed plus an amount equal to any accrued and unpaid dividends thereon
to the date fixed for redemption. The redemption price per Depositary Share will
be equal to the redemption  price and any other  amounts per share payable  with
respect  to the Preferred Stock. If fewer  than all the Depositary Shares are to
be redeemed, the Depositary Shares to be redeemed will be selected pro rata  (as
nearly  as may be practicable without  creating fractional Depositary Shares) or
by any other equitable method determined by the Company that preserves the  REIT
status of the Company.
 
    From  and after the date  fixed for redemption, all  dividends in respect of
the shares of Preferred Stock so called for redemption will cease to accrue, the
Depositary Shares  so called  for redemption  will  no longer  be deemed  to  be
outstanding  and all rights of the holders of the Depositary Receipts evidencing
the Depositary Shares so called for  redemption will cease, except the right  to
receive  any moneys payable upon such redemption and any money or other property
to which  the  holders of  such  Depositary  Receipts were  entitled  upon  such
redemption upon surrender thereof to the applicable Preferred Stock Depositary.
 
VOTING OF THE PREFERRED STOCK
 
    Upon receipt of notice of any meeting at which the holders of the applicable
Preferred  Stock  are entitled  to vote,  a Preferred  Stock Depositary  will be
required to mail  the information  contained in such  notice of  meeting to  the
record holders of the Depositary Receipts evidencing the Depositary Shares which
represent  such  Preferred  Stock.  Each record  holder  of  Depositary Receipts
evidencing Depositary Shares on the record date (which will be the same date  as
the   record   date   for   the   Preferred   Stock)   will   be   entitled   to
 
                                       21
<PAGE>
instruct such Preferred Stock Depositary as to the exercise of the voting rights
pertaining to  the  amount  of  Preferred Stock  represented  by  such  holder's
Depositary  Shares. Such Preferred Stock Depositary will be required to vote the
amount of Preferred Stock  represented by such  Depositary Shares in  accordance
with such instructions, and the Company will agree to take all reasonable action
which  may be deemed  necessary by such  Preferred Stock Depositary  in order to
enable such Preferred Stock Depositary to do so. Such Preferred Stock Depositary
will  be  required  to  abstain  from  voting  the  amount  of  Preferred  Stock
represented by such Depositary Shares to the extent it does not receive specific
instructions  from the holders of Depositary Receipts evidencing such Depositary
Shares. A Preferred Stock Depositary will not be responsible for any failure  to
carry  out any instruction to vote, or for the manner or effect of any such vote
made, as long as  any such action or  non-action is in good  faith and does  not
result from negligence or willful misconduct of such Preferred Stock Depositary.
 
LIQUIDATION PREFERENCE
 
    In  the event of the liquidation, dissolution  or winding up of the Company,
whether voluntary or involuntary, the holders of each Depositary Receipt will be
entitled to the fraction  of the liquidation preference  accorded each share  of
Preferred Stock represented by the Depositary Share evidenced by such Depositary
Receipt, as set forth in the applicable Prospectus Supplement.
 
CONVERSION OF PREFERRED STOCK
 
    The Depositary Shares, as such, will not be convertible into Common Stock or
any  other securities or property of  the Company. Nevertheless, if so specified
in the applicable Prospectus  Supplement relating to  an offering of  Depositary
Shares,  the Depositary  Receipts may be  surrendered by holders  thereof to the
applicable  Preferred  Stock  Depositary  with  written  instructions  to   such
Preferred  Stock Depositary to  instruct the Company to  cause conversion of the
Preferred  Stock  represented  by  the  Depositary  Shares  evidenced  by   such
Depositary Receipts into whole shares of Common Stock, other shares of Preferred
Stock  of the Company or other shares of  stock, and the Company will agree that
upon receipt of such instructions and any amounts payable in respect thereof, it
will cause  the  conversion  thereof  utilizing the  same  procedures  as  those
provided  for  delivery of  Preferred Stock  to effect  such conversion.  If the
Depositary Shares evidenced by a Depositary Receipt are to be converted in  part
only,  a new Depositary  Receipt or Receipts  will be issued  for any Depositary
Shares not to be converted. No fractional shares of Common Stock will be  issued
upon  conversion, and if such conversion will result in a fractional share being
issued, an amount will be paid in cash by the Company equal to the value of  the
fractional interest based upon the closing price of the Common Stock on the last
business day prior to the conversion.
 
AMENDMENT AND TERMINATION OF A DEPOSIT AGREEMENT
 
    Any  form  of Depositary  Receipt  evidencing Depositary  Shares  which will
represent Preferred  Stock and  any provision  of a  Deposit Agreement  will  be
permitted  at any time  to be amended  by agreement between  the Company and the
applicable Preferred Stock  Depositary. However, any  amendment that  materially
and  adversely alters the rights  of the holders of  Depositary Receipts or that
would be materially and  adversely inconsistent with the  rights granted to  the
holders  of  the  related Preferred  Stock  will  not be  effective  unless such
amendment has been approved  by the existing holders  of at least two-thirds  of
the applicable Depositary Shares evidenced by the applicable Depositary Receipts
then  outstanding.  No  amendment shall  impair  the right,  subject  to certain
anticipated exceptions in the  Deposit Agreements, of  any holder of  Depositary
Receipts to surrender any Depositary Receipt with instructions to deliver to the
holder  the related Preferred  Stock and all  money and other  property, if any,
represented thereby, except  in order  to comply with  law. Every  holder of  an
outstanding  Depositary Receipt at the time any such amendment becomes effective
shall be deemed, by continuing to  hold such Depositary Receipt, to consent  and
agree  to such amendment and to be  bound by the applicable Deposit Agreement as
amended thereby.
 
    A Deposit Agreement will be permitted  to be terminated by the Company  upon
not  less than 30 days'  prior written notice to  the applicable Preferred Stock
Depositary if (i) such termination is necessary to preserve the Company's status
as a REIT or (ii) a majority of each series of Preferred Stock affected by  such
 
                                       22
<PAGE>
termination  consents  to  such  termination,  whereupon  such  Preferred  Stock
Depositary will  be required  to deliver  or make  available to  each holder  of
Depositary  Receipts, upon  surrender of  the Depositary  Receipts held  by such
holder, such number  of whole  or fractional shares  of Preferred  Stock as  are
represented  by  the Depositary  Shares  evidenced by  such  Depositary Receipts
together with any other  property held by such  Preferred Stock Depositary  with
respect  to such Depositary Receipts.  The Company will agree  that if a Deposit
Agreement is terminated  to preserve the  Company's status as  a REIT, then  the
Company  will  use its  best efforts  to  list the  Preferred Stock  issued upon
surrender of the related Depositary Shares on a national securities exchange. In
addition,  a  Deposit  Agreement  will   automatically  terminate  if  (i)   all
outstanding  Depositary Shares thereunder  shall have been  redeemed, (ii) there
shall have been a final distribution  in respect of the related Preferred  Stock
in connection with any liquidation, dissolution or winding up of the Company and
such  distribution  shall have  been distributed  to  the holders  of Depositary
Receipts evidencing the Depositary Shares  representing such Preferred Stock  or
(iii)  each share of the related Preferred  Stock shall have been converted into
stock of the Company not so represented by Depositary Shares.
 
CHARGES OF A PREFERRED STOCK DEPOSITARY
 
    The Company will pay all transfer  and other taxes and governmental  charges
arising  solely  from the  existence of  a Deposit  Agreement. In  addition, the
Company will  pay the  fees and  expenses  of a  Preferred Stock  Depositary  in
connection  with  the  performance  of its  duties  under  a  Deposit Agreement.
However, holders of  Depositary Receipts  will pay the  fees and  expenses of  a
Preferred  Stock  Depositary for  any  duties requested  by  such holders  to be
performed which are outside  of those expressly provided  for in the  applicable
Deposit Agreement.
 
RESIGNATION AND REMOVAL OF DEPOSITARY
 
    A  Preferred Stock  Depositary will  be permitted to  resign at  any time by
delivering to the Company notice of its election to do so, and the Company  will
be  permitted  at any  time to  remove  a Preferred  Stock Depositary,  any such
resignation or  removal to  take  effect upon  the  appointment of  a  successor
Preferred  Stock  Depositary. A  successor  Preferred Stock  Depositary  will be
required to  be  appointed  within 60  days  after  delivery of  the  notice  of
resignation or removal and will be required to be a bank or trust company having
its  principal office  in the  United States and  having a  combined capital and
surplus of at least $50,000,000.
 
MISCELLANEOUS
 
    A Preferred  Stock Depositary  will be  required to  forward to  holders  of
Depositary  Receipts any reports  and communications from  the Company which are
received by  such  Preferred  Stock  Depositary  with  respect  to  the  related
Preferred Stock.
 
    Neither a Preferred Stock Depositary nor the Company will be liable if it is
prevented  from or delayed in,  by law or any  circumstances beyond its control,
performing its obligations  under a  Deposit Agreement. The  obligations of  the
Company  and  a Preferred  Stock Depositary  under a  Deposit Agreement  will be
limited to  performing  their  duties  thereunder  in  good  faith  and  without
negligence  (in the case  of any action  or inaction in  the voting of Preferred
Stock represented  by the  applicable Depositary  Shares), gross  negligence  or
willful  misconduct, and neither the Company  nor any applicable Preferred Stock
Depositary will be  obligated to  prosecute or  defend any  legal proceeding  in
respect  of any  Depositary Receipts. Depositary  Shares or  shares of Preferred
Stock represented  thereby  unless  satisfactory  indemnity  is  furnished.  The
Company  and any Preferred Stock Depositary will be permitted to rely on written
advice of counsel or accountants, or information provided by persons  presenting
shares of Preferred Stock represented thereby for deposit, holders of Depositary
Receipts  or other persons believed  in good faith to  be competent to give such
information, and on documents believed in good faith to be genuine and signed by
a proper party.
 
    In the event a Preferred Stock Depositary shall receive conflicting  claims,
requests  or instructions  from any holders  of Depositary Receipts,  on the one
hand, and the Company, on the other hand, such Preferred Stock Depositary  shall
be  entitled to act on  such claims, requests or  instructions received from the
Company.
 
                                       23
<PAGE>
                          DESCRIPTION OF COMMON STOCK
 
GENERAL
 
    The authorized capital stock  of the Company  includes 45,000,000 shares  of
Common  Stock, $.01 par value per share.  Each outstanding share of Common Stock
entitles the holder to one vote on  all matters presented to shareholders for  a
vote. Holders of Common Stock have no preemptive rights. At June 30, 1995, there
were 24,134,745 shares of Common Stock outstanding and 4,163,459 shares reserved
for issuance upon exchange of outstanding Units.
 
    Shares  of Common Stock currently outstanding  are listed for trading on the
New York Stock Exchange (the "NYSE"). The Company will apply to the NYSE to list
the additional shares  of Common  Stock to be  sold pursuant  to any  Prospectus
Supplement, and the Company anticipates that such shares will be so listed.
 
    The  Articles  of Incorporation  of  the Company  provide  for the  board of
directors to be divided into three  classes of directors, each class to  consist
as  nearly as possible of one-third of  the directors. At each annual meeting of
shareholders, the  class of  directors to  be elected  at such  meeting will  be
elected  for a three-year term  and the directors in  the other two classes will
continue in office.  The overall  effect of the  provisions in  the Articles  of
Incorporation  with  respect  to the  classified  board  may be  to  render more
difficult a change of control of the Company or removal of incumbent management.
Holders of Common Stock have no right  to cumulative voting for the election  of
directors.  Consequently, at each annual meeting of shareholders, the holders of
a plurality  of  the shares  of  Common  Stock are  able  to elect  all  of  the
successors  of  the  class of  directors  whose  term expires  at  that meeting.
Directors may be removed only  for cause and only  with the affirmative vote  of
the  holders of a majority of the shares of Common Stock entitled to vote in the
election of directors.
 
    All shares of Common Stock issued  will be duly authorized, fully paid,  and
non-assessable.  Distributions may be paid to the holders of Common Stock if and
when declared by  the board of  directors of  the Company out  of funds  legally
available therefor. The Company intends to continue to pay quarterly dividends.
 
    Under  Indiana law, shareholders are generally  not liable for the Company's
debts or obligations. If the Company is liquidated, subject to the right of  any
holders  of preferred stock, if any, to receive preferential distributions, each
outstanding share of Common  Stock will be entitled  to participate pro rata  in
the  assets remaining  after payment  of, or  adequate provision  for, all known
debts and liabilities of the Company.
 
CERTAIN PROVISIONS AFFECTING CHANGE OF CONTROL
 
    GENERAL.  Pursuant to Indiana law, the Company cannot merge with or sell all
or substantially  all  of  the assets  of  the  Company, except  pursuant  to  a
resolution  approved by shareholders holding a  majority of the shares voting on
the resolution. The Company's Articles of Incorporation also contain  provisions
which  may  discourage  certain types  of  transactions involving  an  actual or
threatened change of control of the Company, including: (i) a requirement  that,
in  the case of certain mergers,  sales of assets, liquidations or dissolutions,
or reclassifications or recapitalizations involving  persons owning 10% or  more
of  the capital stock of the Company, such transactions be approved by a vote of
the holders of 80% of the issued and outstanding shares of capital stock of  the
Company  or three-fourths of the continuing directors, or provide for payment of
a price to affected shareholders for their shares not less than as specified  in
the  Articles  of  Incorporation;  (ii)  a  requirement  that  any  amendment or
alteration of  certain provisions  of the  Articles of  Incorporation  affecting
change  of  control  be  approved  by  the holders  of  80%  of  the  issued and
outstanding capital  stock  of the  Company;  and  (iii) a  staggered  board  of
directors  and a  limitation on  removal of  directors to  removal for  cause as
described above.
 
    The partnership  agreement  for  the  Operating  Partnership  also  contains
provisions which could discourage transactions involving an actual or threatened
change of control of the Company, including (i) a requirement that holders of at
least  90% of the outstanding  Units held by the  Company and other Unit holders
approve any voluntary sale, exchange  or other disposition, including merger  or
consolidation   (other  than  a  disposition   occurring  upon  a  financing  or
refinancing of the Operating Partnership), of all or
 
                                       24
<PAGE>
substantially all  of  the assets  of  the  Operating Partnership  in  a  single
transaction  or a series of related transactions; (ii) a restriction against any
assignment or  transfer  by  the  Company  of  its  interest  in  the  Operating
Partnership;  and (iii) a requirement that holders of more than 90% of the Units
approve any merger, consolidation  or other combination of  the Company with  or
into  another  entity, or  sale of  all  or substantially  all of  the Company's
assets, or any  reclassification or  recapitalization or  change of  outstanding
shares  of Common Stock (other than certain  changes in par value, stock splits,
stock dividends or combinations) unless after the transaction substantially  all
of  the  assets  of  the  surviving  entity  are  contributed  to  the Operating
Partnership in exchange for Units. On these matters, the Company's Units will be
voted at the discretion of the directors of the Company who are not officers  or
employees of the Company and do not hold Units.
 
    OWNERSHIP  LIMITS.  For the Company to qualify  as a REIT under the Code, no
more than 50% in value of its outstanding capital shares may be owned,  directly
or  indirectly, by five or fewer individuals  (as defined in the Code to include
certain  entities)  during  the  last  half  of  a  taxable  year  or  during  a
proportionate  part of  a shorter  taxable year. The  Common Stock  must also be
beneficially owned by 100 or more persons during at least 335 days of a  taxable
year  or during  a proportionate  part of  a shorter  taxable year.  Because the
Company expects to continue to qualify as a REIT, the Articles of  Incorporation
of  the Company contain restrictions on the acquisition of Common Stock intended
to ensure compliance with these requirements.
 
    The Articles of  Incorporation contain a  restriction which authorizes,  but
does  not require, the board of directors to refuse to give effect to a transfer
of Common  Stock which,  in its  opinion,  might jeopardize  the status  of  the
Company  as a  REIT. This  provision also  renders null  and void  any purported
acquisition of shares which would result in the disqualification of the  Company
as a REIT. The provision also gives the board of directors the authority to take
such  actions as it deems advisable to enforce the provision. Such actions might
include, but are  not limited  to, refusing  to give  effect to,  or seeking  to
enjoin,  a transfer which might  jeopardize the Company's status  as a REIT. The
provision also requires any shareholder to provide the Company such  information
regarding  his direct and indirect ownership of  Common Stock as the Company may
reasonably require.
 
REGISTRAR AND TRANSFER AGENT
 
    The Registrar and  Transfer Agent  for the  Common Stock  is American  Stock
Transfer & Trust Company, New York, New York.
 
                              PLAN OF DISTRIBUTION
 
    The  Company and the Operating Partnership may sell Securities to or through
underwriters, and  also may  sell  Securities directly  to other  purchasers  or
through agents.
 
    The  distribution of the Securities may be effected from time to time in one
or more transactions at  a fixed price  or prices, which may  be changed, or  at
market  prices  prevailing  at the  time  of  sale, at  prices  related  to such
prevailing market prices or at negotiated prices.
 
    In  connection  with  the  sale  of  Securities,  underwriters  may  receive
compensation from the Company, from the Operating Partnership or from purchasers
of  Securities,  for whom  they may  act as  agents, in  the form  of discounts,
concessions, or  commissions. Underwriters  may sell  Securities to  or  through
dealers,  and such  dealers may receive  compensation in the  form of discounts,
concessions, or commissions  from the underwriters  and/or commissions from  the
purchasers  for whom they  may act as agents.  Underwriters, dealers, and agents
that participate  in  the  distribution  of  Securities  may  be  deemed  to  be
underwriters,  and any discounts or commissions they receive from the Company or
the Operating  Partnership, and  any profit  on the  resale of  Securities  they
realize  may be deemed  to be underwriting discounts  and commissions, under the
Securities Act. Any such underwriter or  agent will be identified, and any  such
compensation  received from  the Company  or the  Operating Partnership  will be
described, in the Prospectus Supplement.
 
                                       25
<PAGE>
    Unless otherwise specified in the related Prospectus Supplement, each series
of Securities will be a new issue with no established trading market, other than
the Common Stock which is  listed on the NYSE. Any  shares of Common Stock  sold
pursuant  to a Prospectus Supplement will be listed on such exchange, subject to
official notice of issuance. The Company or the Operating Partnership may  elect
to  list any series of Debt Securities,  Preferred Stock or Depositary Shares on
an exchange, but neither is obligated to do so. It is possible that one or  more
underwriters  may  make a  market in  a series  of Securities,  but will  not be
obligated to do so  and may discontinue  any market making  at any time  without
notice.  Therefore, no assurance can be given as to the liquidity of the trading
market for the Securities.
 
    Under agreements the Company and  the Operating Partnership may enter  into,
underwriters,  dealers,  and  agents  who  participate  in  the  distribution of
Securities may be entitled  to indemnification by the  Company or the  Operating
Partnership   against  certain  liabilities,  including  liabilities  under  the
Securities Act.
 
    Underwriters, dealers and agents may engage in transactions with, or perform
services for, or be  customers of, the Company  or the Operating Partnership  in
the ordinary course of business.
 
    If  so indicated in the applicable Prospectus Supplement, the Company or the
Operating Partnership, as the case may be, will authorize underwriters or  other
persons acting as the Company's or the Operating Partnership's agents to solicit
offers  by certain institutions  to purchase Securities from  the Company or the
Operating Partnership pursuant to contracts  providing for payment and  delivery
on  a future date.  Institutions with which  such contracts may  be made include
commercial and  savings banks,  insurance companies,  pension funds,  investment
companies,  educational and charitable institutions and others, but in all cases
such institutions must be approved by the Company or the Operating  Partnership,
as  the case may  be. The obligations  of any purchaser  under any such contract
will be subject to the condition that  the purchase of the Securities shall  not
at  the time  of delivery be  prohibited under  the laws of  the jurisdiction to
which such purchaser is subject. The underwriters and such other agents will not
have any  responsibility in  respect  of the  validity  or performance  of  such
contracts.
 
                                 LEGAL OPINIONS
 
    The  legality of the Securities offered hereby  is being passed upon for the
Company by  Bose McKinney  & Evans,  Indianapolis, Indiana.  John W.  Wynne  and
Darell  E. Zink, Jr.,  officers and directors  of the Company,  were partners in
Bose McKinney & Evans through 1987  and 1982, respectively, and were of  counsel
to  that firm until December,  1990. The spouse of Dayle  M. Eby, an officer and
shareholder of the  Company, is a  partner in  Bose McKinney &  Evans. Rogers  &
Wells,  New York, New York  will act as counsel  to any underwriters, dealers or
agents.
 
                                    EXPERTS
 
    The Consolidated Financial  Statements and  Schedules of the  Company as  of
December  31, 1994 and 1993, and for each  of the years in the three-year period
ended December  31,  1994, and  the  Consolidated Financial  Statements  of  the
Operating  Partnership as  of December 31,  1994 and  1993, and for  each of the
years in the three-year period ended December 31, 1994, each incorporated herein
by reference have been  incorporated herein in reliance  on the reports of  KPMG
Peat  Marwick LLP, independent auditors,  also incorporated by reference herein,
and upon the authority of said firm as experts in accounting and auditing.
 
                                       26
<PAGE>
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    NO  DEALER, SALESMAN  OR OTHER  INDIVIDUAL HAS  BEEN AUTHORIZED  TO GIVE ANY
INFORMATION OR  TO  MAKE  ANY  REPRESENTATIONS OTHER  THAN  THOSE  CONTAINED  OR
INCORPORATED  BY REFERENCE  IN THIS PROSPECTUS  SUPPLEMENT OR  THE PROSPECTUS IN
CONNECTION WITH  THE  OFFERING  MADE  BY  THIS  PROSPECTUS  SUPPLEMENT  AND  THE
PROSPECTUS  AND, IF GIVEN OR MADE,  SUCH INFORMATION OR REPRESENTATIONS MUST NOT
BE RELIED UPON  AS HAVING BEEN  AUTHORIZED BY THE  COMPANY OR THE  UNDERWRITERS.
NEITHER  THE DELIVERY  OF THIS PROSPECTUS  SUPPLEMENT OR THE  PROSPECTUS NOR ANY
SALE MADE  HEREUNDER AND  THEREUNDER SHALL,  UNDER ANY  CIRCUMSTANCE, CREATE  AN
IMPLICATION  THAT  THERE HAS  BEEN  NO CHANGE  IN THE  FACTS  SET FORTH  IN THIS
PROSPECTUS SUPPLEMENT OR  IN THE  PROSPECTUS OR IN  THE AFFAIRS  OF THE  COMPANY
SINCE  THE DATE  HEREOF. THIS  PROSPECTUS SUPPLEMENT  AND THE  PROSPECTUS DO NOT
CONSTITUTE AN OFFER OR SOLICITATION BY ANYONE  IN ANY STATE IN WHICH SUCH  OFFER
OR  SOLICITATION IS NOT AUTHORIZED  OR IN WHICH THE  PERSON MAKING SUCH OFFER OR
SOLICITATION IS NOT QUALIFIED TO  DO SO OR TO ANYONE  TO WHOM IT IS UNLAWFUL  TO
MAKE SUCH OFFER OR SOLICITATION.
 
                              -------------------
 
                               TABLE OF CONTENTS
                             PROSPECTUS SUPPLEMENT
 
<TABLE>
<CAPTION>
                                                      PAGE
                                                    ---------
<S>                                                 <C>
Prospectus Supplement Summary.....................        S-3
The Company.......................................        S-6
Recent Developments...............................       S-10
Use of Proceeds...................................       S-11
Capitalization....................................       S-12
Selected Consolidated Financial Data..............       S-13
Management's Discussion and Analysis of Financial
 Condition and Results of Operations..............       S-16
Properties........................................       S-22
Management........................................       S-29
Description of Series A Preferred Shares and
 Depositary Shares................................       S-30
Certain Federal Income Tax Considerations.........       S-33
Underwriting......................................       S-40
Legal Matters.....................................       S-40
                         PROSPECTUS
Available Information.............................          2
Incorporation of Certain Documents by Reference...          2
The Company and the Operating Partnership.........          3
Use of Proceeds...................................          3
Ratios of Earnings to Fixed Charges...............          3
Description of Debt Securities....................          4
Description of Preferred Stock....................         14
Description of Depositary Shares..................         20
Description of Common Stock.......................         24
Plan of Distribution..............................         25
Legal Opinions....................................         26
Experts...........................................         26
</TABLE>
 
                                3,000,000 SHARES
 
                                     [LOGO]
 
                               DEPOSITARY SHARES
                                      EACH
                             REPRESENTING 1/10 OF A
                              % SERIES A CUMULATIVE
                           REDEEMABLE PREFERRED SHARE
                          (PAR VALUE $0.01 PER SHARE)
                            (LIQUIDATION PREFERENCE
                                 EQUIVALENT TO
                          $25.00 PER DEPOSITARY SHARE)
 
                              -------------------
 
                             PROSPECTUS SUPPLEMENT
 
                              -------------------
 
                              MERRILL LYNCH & CO.
                           DEAN WITTER REYNOLDS INC.
                           A.G. EDWARDS & SONS, INC.
                               SMITH BARNEY INC.
                                AUGUST   , 1996
 
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