PRIME GROUP REALTY TRUST
10-Q, 1999-08-16
REAL ESTATE INVESTMENT TRUSTS
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                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D. C. 20549

                                    FORM 10-Q

          (X) QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15 (d) OF THE
                         SECURITIES EXCHANGE ACT OF 1934

                  For the quarterly period ended June 30, 1999

          ( ) TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 (d) OF THE
                         SECURITIES EXCHANGE ACT OF 1934

                         Commission File Number: 1-13589

                            PRIME GROUP REALTY TRUST
             (Exact name of registrant as specified in its charter)

          MARYLAND                                              36-4173047
(State or other jurisdiction of                               (I.R.S. Employer
 incorporation or organization)                              Identification No.)

77 West Wacker Drive, Suite 3900, Chicago, Illinois                 60601
     (Address of principal executive offices)                     (Zip Code)

                                 (312) 917-1300
              (Registrant's telephone number, including area code)

Indicate by check mark whether the registrant (1) has filed all reports required
to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during
the  preceding 12 months (or for such  shorter  period that the  registrant  was
required  to file  such  reports),  and  (2) has  been  subject  to such  filing
requirements for the past 90 days. Yes x  No
                                      ---   ---
Indicate the number of shares  outstanding  of each of the  issuer's  classes of
common stock, as of the latest practicable date:

At August 13, 1999,  15,135,827 of the Registrant's  Common Shares of Beneficial
Interest were outstanding.









































                                       -1-
<PAGE>
                            PRIME GROUP REALTY TRUST
                                    FORM 10-Q

                                      Index


                                                                           Page
PART I:  FINANCIAL INFORMATION                                             ----

Item 1.  Financial Statements (Unaudited)

         Consolidated Balance Sheets as of June 30, 1999 and
           December 31, 1998..............................................    3

         Consolidated Statements of Income for the Three Months
           Ended June 30, 1999 and 1998...................................    4

         Consolidated Statements of Income for the Six Months
           Ended June 30, 1999 and 1998...................................    5

         Consolidated Statements of Cash Flows for the Six Months
           Ended June 30, 1999 and 1998...................................    6

         Notes to Consolidated Financial Statements....................... 7-14

Item 2.  Management's Discussion and Analysis of Financial
           Condition and Results of Operations............................   14

Item 3.  Quantitative and Qualitative Disclosures About
           Market Risk....................................................   23


PART II: OTHER INFORMATION

Item 1.  Legal Proceedings................................................   23

Item 2.  Changes in Securities and Use of Proceeds........................   23

Item 3.  Defaults Upon Senior Securities..................................   24

Item 4.  Submission of Matters to a Vote of Security Holders..............   24

Item 5.  Other Information................................................   24

Item 6.  Exhibits and Reports on Form 8-K.................................   25


Signatures................................................................   26








































                                      -2-
<PAGE>
<TABLE>
                          PART I. FINANCIAL INFORMATION

ITEM 1.  FINANCIAL STATEMENTS

                            PRIME GROUP REALTY TRUST
                           Consolidated Balance Sheets
                       (000's omitted, except share data)
                                   (Unaudited)
<CAPTION>
                                                   June 30,        December 31,
                                                     1999               1998
                                                 ------------      ------------
<S>                                              <C>               <C>
                       ASSETS
Real estate, at cost:
  Land........................................   $    162,665      $    139,505
  Building and improvements...................        839,295           655,154
  Tenant improvements.........................         58,070            48,372
                                                 ------------      ------------
                                                    1,060,030           843,031
  Accumulated depreciation....................        (38,918)          (24,756)
                                                 ------------      ------------
                                                    1,021,112           818,275
  Property under development..................         75,408            51,376
                                                 ------------      ------------
                                                    1,096,520           869,651
Mortgage note receivable......................         72,753            63,270
Cash and cash equivalents.....................         17,858            46,500
Tenant receivables, net.......................         11,317             7,288
Restricted cash escrows.......................         32,354            53,820
Deferred rent receivable......................         40,270            39,062
Deferred costs, net...........................         35,056            32,891
Loans receivable from services company........          5,728             7,055
Other.........................................         44,326            44,977
                                                 ------------      ------------

Total assets..................................   $  1,356,182      $  1,164,514
                                                 ============      ============

     LIABILITIES AND SHAREHOLDERS' EQUITY
Mortgage notes payable........................   $    675,471      $    518,718
Credit facilities.............................         20,637                --
Bonds payable.................................         74,450            74,450
Accrued interest payable......................          3,378             2,440
Accrued real estate taxes.....................         41,214            29,657
Accounts payable and accrued expenses.........         25,906            26,068
Liabilities for leases assumed................          3,841             4,792
Dividends payable.............................          8,104             8,080
Other.........................................          3,750             4,523
                                                 ------------      ------------
Total liabilities                                     856,751           668,728
Minority interests:
  Operating Partnership.......................        148,618           144,781
  Other.......................................          1,000             1,000
Series A - Cumulative Convertible Redeemable
  Preferred Shares, 2,000,000 shares
   designated, issued and outstanding at
   June 30, 1999..............................         39,630                --
Shareholders' equity:
  Preferred Shares, $0.01 par value;
  30,000,000 shares authorized:
    Series B - Cumulative Redeemable
     Preferred Shares, 4,000,000 shares
     designated, issued and outstanding at
     June 30, 1999 and December 31, 1998......             40                40
    Series A - Cumulative Convertible
     Preferred Shares, 2,000,000 shares
     designated, issued and outstanding at
     December 31, 1998........................             --                20
   Common Shares, $0.01 par value; 100,000,000
    shares authorized; 15,135,727 and
    15,110,794 shares issued and outstanding
    at June 30, 1999 and December 31, 1998,
    respectively..............................            151               151
   Additional paid-in capital.................        320,386           360,017
   Distributions in excess of earnings........        (10,394)          (10,223)
                                                 ------------      ------------
Total shareholders' equity....................        310,183           350,005
                                                 ------------      ------------

Total liabilities and shareholders' equity....   $  1,356,182      $  1,164,514
                                                 ============      ============

<FN>
                See notes to consolidated financial statements.
</FN>
                                      -3-
</TABLE>
<PAGE>
<TABLE>
                            PRIME GROUP REALTY TRUST
                        Consolidated Statements of Income
                       (000's omitted, except share data)
                                   (Unaudited)


<CAPTION>
                                                      Three Months Ended
                                                           June 30
                                                 ------------------------------
                                                     1999              1998
                                                 ------------      ------------
<S>                                              <C>               <C>
                   REVENUE

Rental........................................   $     33,716      $     23,391
Tenant reimbursements.........................         13,484            10,026
Mortgage note interest........................          1,604             1,507
Other.........................................          4,108             1,999
                                                 ------------      ------------

Total revenue.................................         52,912            36,923

                  EXPENSES

Property operations...........................         10,597             6,885
Real estate taxes.............................          9,774             6,874
Depreciation and amortization.................          8,680             6,240
Interest......................................         11,545             8,061
General and administrative....................          1,757             1,648
                                                 ------------      ------------

Total expenses................................         42,353            29,708
                                                 ------------      ------------
Income before minority interests, gain on
 sale of real estate and extraordinary item...         10,559             7,215

Minority interests............................         (3,083)           (2,352)
                                                 ------------      ------------
Income before gain on sale of real estate
 and extraordinary item.......................          7,476             4,863

Gain on sale of real estate, net of
 minority interests of $1,778.................          2,579                --
                                                 ------------      ------------

Income before extraordinary item..............         10,055             4,338

Extraordinary loss on extinguishment of
 debt, net of minority interests of $375......             --              (525)
                                                 ------------      ------------

Net income....................................         10,055             4,338

Net income allocated to preferred
 shareholders.................................         (3,030)           (1,341)
                                                 ------------      ------------

Net income available to common shareholders...   $      7,025      $      2,997
                                                 ============      ============

Net income available per weighted-average
 common share of beneficial interest -
 Basic and diluted............................   $       0.46      $       0.19
                                                 ============      ============


















<FN>
                See notes to consolidated financial statements.
</FN>
                                      -4-
</TABLE>
<PAGE>
<TABLE>
                            PRIME GROUP REALTY TRUST
                        Consolidated Statements of Income
                       (000's omitted, except share data)
                                   (Unaudited)


<CAPTION>
                                                        Six Months Ended
                                                            June 30
                                                 ------------------------------
                                                     1999              1998
                                                 ------------      ------------
<S>                                              <C>               <C>
                 REVENUE

Rental........................................   $     66,332      $     41,476
Tenant reimbursements.........................         26,385            18,401
Mortgage note interest........................          3,110             3,014
Other.........................................          6,164             2,783
                                                 ------------      ------------

Total revenue.................................        101,991            65,674
                                                 ------------      ------------

                     EXPENSES

Property operations...........................         21,247            11,941
Real estate taxes.............................         19,149            12,232
Depreciation and amortization.................         16,638            11,575
Interest......................................         21,923            14,476
Loss on land development option...............            600                --
General and administrative....................          3,807             3,044
                                                 ------------      ------------

Total expenses................................         83,364            53,268
                                                 ------------      ------------
Income before minority interests, gain on
 sale of real estate and extraordinary item...         18,627            12,406

Minority interests............................         (5,139)           (4,317)
                                                 ------------      ------------

Income before gain on sale of real estate
 and extraordinary item.......................         13,488             8,089

Gain on sale of real estate, net of minority
 interests of $1,778..........................          2,579                --
                                                 ------------      ------------

Income before extraordinary item..............         16,067             8,089

Extraordinary loss on extinguishment of
 debt, net of minority interests of $375......             --              (525)
                                                 ------------      ------------

Net income....................................         16,067             7,564

Net income allocated to preferred
 shareholders.................................         (6,030)           (2,041)
                                                 ------------      ------------

Net income available to common shareholders...   $     10,037      $      5,523
                                                 ============      ============

Net income available per weighted-average
 common share of beneficial interest -
 Basic and diluted............................   $       0.66      $       0.39
                                                 ============      ============















<FN>
                See notes to consolidated financial statements.
</FN>
                                      -5-
</TABLE>
<PAGE>
<TABLE>
                            PRIME GROUP REALTY TRUST
                      Consolidated Statements of Cash Flows
                       (000's omitted, except share data)
                                   (Unaudited)
<CAPTION>
                                                        Six Months Ended
                                                             June 30
                                                 ------------------------------
                                                     1999              1998
                                                 ------------      ------------
<S>                                              <C>               <C>
OPERATING ACTIVITIES
Net income....................................   $     16,067      $      7,564
Adjustments to reconcile net income to net
 cash provided by operating activities:
   Amortization of costs for leases assumed
    (included in rental revenue)..............            491               591
   Interest income and development fees added
    to mortgage note receivable principal.....         (1,788)               --
   Depreciation and amortization..............         16,638            11,575
   Gain on sale of real estate................         (4,357)               --
   Net gain on treasury lock terminations.....           (615)               --
   Loss on land development option............            600                --
   Equity in loss (earnings) of
    unconsolidated affiliate..................            390                (2)
   Minority interests.........................          6,917             4,317
   Extraordinary item, net....................             --               525
   Changes in operating assets and liabilities:
    Increase in tenant receivables..........           (4,029)           (2,288)
    Increase in deferred rent receivable....           (1,208)             (741)
    Decrease (increase) in other assets.....            3,596           (18,044)
    Increase in accrued interest payable....              938               458
    Increase in accrued real estate taxes...           11,557             7,505
    (Decrease) increase in accounts payable
      and accrued expenses..................           (6,213)            1,246
    Decrease in liabilities for leases
      assumed...............................             (598)             (380)
    (Decrease) increase in other
      liabilities...........................             (773)            4,890
                                                 ------------      ------------
Net cash provided by operating activities.....         37,613            17,216

INVESTING ACTIVITIES
Expenditures for real estate and equipment....       (176,801)         (257,119)
Proceeds from sale of real estate.............         13,191                --
Leasing costs.................................         (2,364)           (1,789)
Additional advances on mortgage note
 receivable...................................         (7,695)              (25)
Decrease (increase) in restricted cash escrows         13,466            (7,309)
Option deposits...............................        (10,000)               --
Repayments (loans) from services company......          1,327            (1,094)
                                                 ------------      ------------
Net cash used in investing activities.........       (168,876)         (267,336)

FINANCING ACTIVITIES
Financing costs...............................         (2,878)           (4,161)
Deposits returned on treasury lock agreements.         15,256                --
Proceeds from mortgage notes payable..........         96,000           341,856
Net proceeds from credit facilities...........         20,637                --
Repayment of mortgage notes payable...........         (2,839)         (212,268)
Repayment of mortgage note payable - affiliate             --            (3,984)
Contributions from minority interest - other..             --             1,000
Distributions to minority interests
 - Operating Partnership......................         (6,971)           (5,176)
Proceeds from the sale of Series B
 - preferred shares...........................             --            95,318
Series A - preferred shares transaction fee...           (400)               --
Proceeds from the sale of common shares.......             --            47,194
Dividends paid to Series B - preferred
 shareholders.................................         (4,500)               --
Dividends paid to Series A - preferred
 shareholders.................................         (1,480)           (1,045)
Dividends paid to common shareholders.........        (10,204)           (7,416)
                                                 ------------      ------------
Net cash provided by financing activities.....        102,621           251,318
                                                 ------------      ------------
Net (decrease) increase in cash and cash
 equivalents..................................        (28,642)            1,198
Cash and cash equivalents at beginning of
 period.......................................         46,500            11,969
                                                 ------------      ------------
Cash and cash equivalents at end of period....   $     17,858      $     13,167
                                                 ============      ============
<FN>
                See notes to consolidated financial statements.
</FN>
                                      -6-
</TABLE>
<PAGE>
                            PRIME GROUP REALTY TRUST
                   Notes to Consolidated Financial Statements
                                   (Unaudited)

1.  BASIS OF PRESENTATION

The accompanying  unaudited  consolidated and combined financial statements have
been prepared in accordance with generally  accepted  accounting  principles for
interim financial information and with the instructions to Form 10-Q and Article
10 of Regulation  S-X.  Accordingly,  they do not include all of the information
and footnotes required by generally accepted accounting  principles for complete
financial statements. In the opinion of management,  all adjustments (consisting
of normal recurring accruals)  considered necessary for a fair presentation have
been  included.  Operating  results for the six month period ended June 30, 1999
are not necessarily  indicative of the results that may be expected for the year
ended  December 31, 1999.  For further  information,  refer to the  consolidated
financial  statements and footnotes  thereto  included in the Prime Group Realty
Trust's annual report on Form 10-K for the year ended December 31, 1998 as filed
with the Securities and Exchange Commission on March 31, 1999 ("Form 10-K").

Certain prior period amounts have been  reclassified to conform with the current
financial statement presentation.

2.  FORMATION OF THE COMPANY

Prime Group Realty Trust (the  "Company")  was organized in Maryland on July 21,
1997 to  continue  the  business  of The Prime  Group,  Inc.  and certain of its
affiliates.  The Company  intends to qualify as a real estate  investment  trust
("REIT") under the Internal Revenue Code of 1986, as amended, for Federal income
tax purposes.

The Company is the managing  general  partner of the Operating  Partnership  and
owns all of the  preferred  units and 58.9% and 59.4% of the common units of the
Operating   Partnership   issued  at  June  30,  1999  and  December  31,  1998,
respectively.  Each common unit  entitles  the Company to receive  distributions
from the  Operating  Partnership.  Distributions  declared or paid to holders of
common shares and preferred shares are based upon such distributions the Company
receives with respect to its common units and preferred units.

3.  INCOME TAXES

Commencing  with the period ended December 31, 1997,  the Company  elected to be
taxed as a REIT under the Internal Revenue Code of 1986, as amended.  As a REIT,
the Company  generally  will not be subject to federal  income tax to the extent
that it distributes at least 95% of its REIT taxable income to its shareholders.
REITs are subject to a number of organizational and operational requirements. If
the Company fails to qualify as a REIT in any taxable year,  the Company will be
subject to federal income tax (including any applicable alternative minimum tax)
on its taxable income at regular corporate tax rates.

4.  USE OF ESTIMATES

The  preparation  of the  financial  statements  in  conformity  with  generally
accepted  accounting  principles  requires  management  to  make  estimates  and
assumptions  that  affect the  reported  amounts of assets and  liabilities  and
disclosure of  contingent  assets and  liabilities  at the date of the financial
statements and the reported amounts of revenue and expenses during the reporting
period.  Actual results could differ from these estimates.

5.  RECENT DEVELOPMENTS

During the period  from  January 1, 1999  through  June 30,  1999,  the  Company
acquired the following  office and  industrial  properties,  and parcels of land
(See "Liquidity and Capital Resources" for a description of the debt terms):
<TABLE>
<CAPTION>
                                     NET       ACQUISITION   MORTGAGE
                                   RENTABLE        COST        DEBT
                                   SQ. FT./   (IN MILLIONS)    (IN        MONTH
  PROPERTY         LOCATION         ACRES          (1)       MILLIONS)  ACQUIRED
- --------------------------------------------------------------------------------
<S>                <C>             <C>         <C>           <C>        <C>
Office:
 33 West Monroe    Chicago,
  Street            IL              846,759     $  101.3      $  65.0   January
 National City
  Center (2),      Cleveland,
  (3),(4)           OH              766,965        105.0         63.6   February
Industrial:
 901 Technology    Libertyville,
  Way (4),(5)       IL               68,824          4.1           --   January
                                  ===================================
                                  1,682,548     $  210.4      $ 128.6
                                  ===================================
Land:
 Carol Stream      Carol Stream,
  Land (5),(6)      IL            24.1 Acres         3.2          --    April
- ---------------
                                      -7-
<PAGE>
<FN>
(1)  Acquisition  cost includes cash paid at closing plus prorations and accrued
     real estate taxes.

(2)  The Company funded a portion of the acquisition costs with $30.0 million in
     advances from its credit facilities.

(3)  Acquisition  costs and  mortgage  debt  include  $2.0  million to adjust an
     assumed above market rate mortgage note payable to a current market rate.

(4)  This  property  was acquired  from  minority  interest  unit holders of the
     Operating Partnership or their affiliates.

(5)  Approximately 7.5 acres of the Carol Stream Land (180 Kehoe Blvd.) was sold
     on July 8, 1999 and 901  Technology Way was sold on July 14, 1999. See Note
     9 regarding disposition of these parcels.

(6)  This  property  was  acquired  from a board  member  who is also a minority
     interest unit holder,  for a total of $3.1 million in common units and $0.1
     million  in cash.  These  acquisitions  were  consummated  pursuant  to the
     Operating  Partnership's  1998 commitment  (subsequently  extended to 1999)
     under land purchase obligations established at the Company's initial public
     offering.
</FN>
</TABLE>
On July 22,  1998,  the  Company  entered  into a  purchase  agreement,  with an
affiliate  of an investor in the  Operating  Partnership,  to acquire two office
buildings,  IBM Plaza (a 1,354,354  square foot office  building  located in the
Chicago  central  business  district)  and National City Center for an aggregate
purchase price of approximately $357.0 million. On February 5, 1999, the Company
entered into an amended  option  agreement  with the sellers of IBM Plaza and an
amended purchase agreement with the sellers of National City Center (see above).
The  option  allows  the  Company  to  purchase  IBM  Plaza for  $238.0  million
(including an $8.0 million  non-refundable  option  payment) and expires October
31, 1999.  If the option is  exercised,  the  purchase of the  property  must be
completed no later than December 20, 1999.

On February  8, 1999,  the Company  signed a contract  with a buyer  pursuant to
which the Company  will  construct  and sell to the buyer a 1,032 space  parking
garage,   including   approximately  4,000  square  feet  of  retail  space,  on
approximately 22,000 square feet of a 61,302 square foot parcel of land that the
Company had under option to purchase in the Chicago  central  business  district
(see Note 9  regarding  acquisition  of this  parcel).  The  sales  price of the
completed  garage is approximately  $35.0 million,  plus the value of any of the
retail  space leased by the Company at the time of sale up to a maximum of $1.75
million.  In  addition,  the Company is entitled to receive an  additional  $1.0
million from the buyer if, within 15 years after the sale of the parking  garage
to the buyer,  the Company  substantially  completes  construction  of an office
building on the land  containing at least  800,000  square feet of office space,
which is occupied by at least one tenant who is not affiliated with the Company.
The Company intends to construct an office  building on the land,  which it will
lease to third  parties.  The land parcel for the office  building  could not be
obtained  without  obtaining  the land for the  parking  garage  and in order to
construct  an office  building,  parking  must be  provided  pursuant to current
zoning requirements.

In March 1999, the option period for a parcel adjacent to one of our development
property  sites  lapsed.  The Company has  recorded  the related  non-refundable
option  price  of  $0.6  million  as a loss on land  development  option  in the
statement of income for the six months ended June 30, 1999.

On March  1,  1999,  the  Company  terminated  a $160.0  million  treasury  lock
agreement  due to  changes  in terms  and  timing of the  purchase  of an office
building  as a  result  of an  amended  purchase  agreement.  This  resulted  in
approximately  $0.6 million on deposit  related to the treasury  lock  agreement
being  forfeited  at the  time of  termination.  On May 11,  1999,  the  Company
terminated a $170.0 million  treasury lock agreement due to changes in timing of
a planned future  securitization of a currently  outstanding $170.0 million loan
related to the 77 West Wacker Drive building.  The termination resulted in a net
settlement and gain upon  termination of $1.2 million which has been included in
other  income for the three  months  ended June 30,  1999.  The net gain of $0.6
million  from  the two  terminations  has been  included  as a net gain in other
income in the statement of income for the six months ended June 30, 1999. During
the six months ended June 30, 1999, the Company received net cash settlements of
approximately $15.2 million related to both treasury lock agreements.

On April 13,  1999,  the Company  modified the terms of the  Company's  Series A
preferred  shares.  Under  the  original  terms,  the  holders  of the  Series A
preferred shares had certain  conversion rights if for two consecutive  quarters
(1) the ratio of the Company's debt plus nonconvertible preferred shares divided
by its  total  market  capitalization  exceeded  65% or (2)  its  fixed  charges
coverage ratio fell below 1.4. The new agreement  eliminates the  debt-to-market
capitalization  covenant.  In  exchange,  the  holders of the Series A preferred
shares were granted the future right to cause the  redemption of their shares at
a price of $20.00 per share upon 120 days prior written notice, which redemption
may occur during the period  beginning  January 15, 2002 and ending  January 15,
2004. The Series A preferred  shares will continue to pay an annual  dividend of

                                      -8-
<PAGE>
$1.50 per share and will continue to be convertible  into common shares on a one
for one basis.  The Company made a $0.4 million one-time payment as part of this
transaction,  which will be amortized,  using the straight-line method,  through
January 15, 2002 as a preferred  dividend.  All 2,000,000  outstanding shares of
the Company's  Series A preferred  shares have been  reclassified  to redeemable
equity  at  their  aggregate  redemption  price  of  $40.0  million,  net of the
unamortized transaction fee, in the consolidated balance sheet.

On April 19, 1999, the Company sold  approximately  161,710 net rentable  square
feet  of its  122  South  Michigan  Avenue  office  building  to  National-Louis
University  (NLU) for a gross sales price of $14.95  million and  consideration,
net  of  commission,  closing  costs  and a  $1.1  million  capital  improvement
allowance,  of $12.1  million.  As part of this sale,  NLU has also  acquired an
undivided  31.56% interest in certain common areas of the property.  The Company
will  continue  to own the  remaining  350,659 net  rentable  square feet of the
building and will be responsible for the management of the entire property.  The
sale resulted in a gain of $4.4 million.

6.  EARNINGS PER SHARE

The following  table sets forth the  computation of basic and diluted net income
available per weighted-average common share of beneficial interest for the three
months and six months  ended June 30,  1999 and  1998(in  thousands,  except per
share amounts):
<TABLE>
<CAPTION>
                           Three Months Ended              Six Months Ended
                                 June 30                      June 30
                         -------------------------   -------------------------
                             1999         1998           1999         1998
                         ------------ ------------   ------------ ------------
<S>                      <C>          <C>            <C>          <C>
Numerator:
 Net income available
  to common shares
  before extraordinary
  item................   $      7,025 $      3,522   $     10,037 $     6,048
 Extraordinary item...             --         (525)            --        (525)
                         ============ ============   ============ ===========
 Numerator for basic
  earnings per share-
  income available to
  common shares.......
                         $      7,025 $      2,997   $     10,037 $     5,523
                         ============ ============   ============ ===========
</TABLE>
<TABLE>
<CAPTION>
                           Three Months Ended            Six Months Ended
                                 June 30                     June 30
                         --------------------------  --------------------------
                             1999          1998          1999          1998
                         ------------  ------------  ------------  ------------
<S>                      <C>           <C>            <C>          <C>
Denominator:
  Denominator for
   basic earnings
   per share -
   weighted average
   common shares.......    15,135,727    15,572,494    15,133,788    14,383,258
     Effect of dilutive
      securities:
        Employee stock
         options......         73,237            --        37,749        16,545
                         ============  ============  ============  ============
  Denominator for
   diluted earnings
   per share -
   adjusted weighted-
   average common
   shares and assumed
   conversions........     15,208,964    15,572,494    15,171,537    14,399,803
                         ============  ============  ============  ============
  Basic and diluted
   earnings available
   to common shares per
   weighted average
   common share:
     Net income before
     extraordinary item  $       0.46  $       0.22  $       0.66  $       0.42
       Extraordinary
        item..........             --         (0.03)           --         (0.03)
                         ------------  ------------  ------------  ------------
   Net income per
    common share......   $       0.46  $       0.19  $       0.66  $       0.39
                         ============  ============  ============  ============
</TABLE>

                                      -9-
<PAGE>
Options to purchase  1,120,333 and 1,122,833 of the Company's common shares were
excluded in the computation of diluted  earnings  available to common shares for
the three months and six months ended June 30, 1999,  respectively,  because the
effect would be antidilutive.

The  Company  had  10,529,839  and  10,280,882   weighted-average  common  units
outstanding during the three months ended June 30, 1999 and 1998,  respectively,
of which 10,349,892 and 9,353,782,  respectively, may be converted (on a one for
one basis) into common shares at the option of the unit holders. The Company had
10,428,678 and 10,280,882  weighted-average  common units outstanding during the
six months ended June 30, 1999 and 1998,  respectively,  of which 10,339,202 and
9,353,782,  respectively,  may be converted  into common shares at the option of
the  unit  holders.  The  convertible  common  units  were not  included  in the
computation  of diluted  earnings  per share  because  the  conversion  would be
antidilutive.

The Company had 2,000,000  Series  A-convertible  preferred  shares  outstanding
during the three  months and six months  ended June 30, 1999 and 1998 which were
not  included in the  computations  of diluted  earnings  per share  because the
conversion would be antidilutive.

7.  SEGMENT REPORTING

The following  summarizes the Company's historical segment operating results for
the three  months  and six  months  ended  June 30,  1999 and 1998  (Amounts  in
thousands):
<TABLE>
<CAPTION>
                                     Three months ended June 30, 1999
                         ------------------------------------------------------
                                                      Corporate/
                                                      Operating
                            Office      Industrial   Partnership      Total
                         ------------  ------------  ------------  ------------
<S>                      <C>           <C>           <C>           <C>
Total revenue.........   $     47,289  $      7,946  $      2,034  $     57,269
Total expenses........         24,640         4,783        12,930        42,353
                         ------------  ------------  ------------  ------------
Income (loss) before
 minority interests...         22,649         3,163       (10,896)       14,916
FFO adjustments:
 Real estate
  depreciation and
  amortization........          6,225         1,863            --         8,088
 Amortization of costs
  for leases assumed..            246            --            --           246
 Straight-line rental
  revenue adjustments.           (559)          (55)           --          (614)
 Gain on sale of real
  estate..............         (4,357)           --            --        (4,357)
 Gain on treasury
  lock termination....             --            --        (1,172)       (1,172)
 Net income allocated
  to preferred
  shareholders........             --            --        (3,030)       (3,030)
                         ============  ============  ============  ============
Funds from operations.   $     24,204  $      4,971  $    (15,098) $     14,077
                         ============  ============  ============  ============
</TABLE>
<TABLE>
<CAPTION>
                                    Three months ended June 30, 1998
                         ------------------------------------------------------
                                                      Corporate/
                                                      Operating
                            Office      Industrial   Partnership      Total
                         ------------  ------------  ------------  ------------
<S>                      <C>           <C>           <C>           <C>
Total revenue.........   $     29,587  $      6,744   $       592   $    36,923
Total expenses........         15,897         3,963         9,848        29,708
                         ------------  ------------  ------------  ------------
Income (loss) before
 minority interests...         13,690         2,781        (9,256)        7,215
FFO adjustments:
 Real estate
  depreciation and
  amortization........          4,340         1,494            --         5,834
 Amortization of costs
  for leases assumed..            275            --            --           275
 Straight line rental
  revenue adjustments.           (277)         (217)           --          (494)
 Net income allocated
  to preferred
  shareholders........             --            --        (1,341)       (1,341)
                         ============  ============  ============  ============
Funds from operations.   $     18,028  $      4,058  $    (10,597) $     11,489
                         ============  ============  ============  ============
</TABLE>
                                      -10-
<PAGE>
<TABLE>
<CAPTION>
                                     Six months ended June 30, 1999
                         ------------------------------------------------------
                                                      Corporate/
                                                      Operating
                            Office      Industrial   Partnership      Total
                         ------------  ------------  ------------  ------------
<S>                      <C>           <C>           <C>           <C>
Total revenue.........   $     89,595  $     14,622  $      2,131  $    106,348
Total expenses........         48,372         8,662        26,330        83,364
                         ------------  ------------  ------------  ------------
Income (loss) before
 minority interests...         41,223         5,960       (24,199)       22,984
FFO adjustments:
 Real estate
  depreciation and
  amortization........         11,998         3,423            --        15,421
 Amortization of
  costs for leases
  assumed.............            491            --            --           491
 Straight-line
  rental revenue
  adjustments.........         (1,074)         (134)           --        (1,208)
 Gain on sale of
  real estate.........         (4,357)           --            --        (4,357)
 Net gain on
  treasury lock
  terminations........             --            --          (615)         (615)
 Loss on land
  development
  option..............             --            --           600           600
 Net income
  allocated to
  preferred
  shareholders........             --            --        (6,030)       (6,030)
                         ============  ============  ============  ============
Funds from operations.   $     48,281  $      9,249  $    (30,244) $     27,286
                         ============  ============  ============  ============
</TABLE>


<TABLE>
<CAPTION>
                                     Six months ended June 30, 1998
                         ------------------------------------------------------
                                                       Corporate/
                                                       Operating
                            Office      Industrial    Partnership      Total
                         ------------  ------------  ------------  ------------
<S>                      <C>           <C>           <C>           <C>
Total revenue.........   $     52,041  $     12,688  $        945  $     65,674
Total expenses........         28,324         7,014        17,930        53,268
                         ------------  ------------  ------------  ------------
Income (loss) before
 minority interests...         23,717         5,674       (16,985)       12,406
FFO adjustments:
 Real estate
  depreciation and
  amortization........          7,964         2,885            --        10,849
 Amortization of
  costs for leases
  assumed.............            566            --            --           566
 Straight line
  rental revenue
  adjustments.........            (67)         (455)           --          (522)
 Net income
  allocated to
  preferred
  shareholders........             --            --        (2,041)       (2,041)
                         ============  ============  ============  ============
Funds from operations    $     32,180  $      8,104  $    (19,026) $     21,258
                         ============  ============  ============  ============
</TABLE>














                                      -11-
<PAGE>
The following  summarizes  the Company's  segment assets and activity as of June
30, 1999 and  December  31, 1998 and for the six months  ended June 30, 1999 and
1998:

<TABLE>
<CAPTION>
                                                    June 30,       December 31,
                                                     1999               1998
                                                 ------------      ------------
<S>                                              <C>               <C>
Segment assets:
 Office......................................    $  1,074,253      $    841,818
 Industrial..................................         196,219           186,817
 Corporate/Operating Partnership.............          85,710           135,879
                                                 ============      ============

Total consolidated assets....................    $  1,356,182      $  1,164,514
                                                 ============      ============
</TABLE>

<TABLE>
<CAPTION>
                                                           Six months
                                                         ended June 30,
                                                 ------------------------------
                                                     1999               1998
                                                 ------------      ------------
<S>                                              <C>               <C>
Expenditures for real estate:
 Office......................................    $    161,965      $    255,178
 Industrial..................................          10,133             1,793
 Corporate/Operating Partnership.............           4,703               148
                                                 ============      ============

Total expenditures for real estate...........    $    176,801      $    257,119
                                                 ============      ============
</TABLE>

8.  PRO FORMA CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

The  accompanying  unaudited  Pro Forma  Condensed  Consolidated  Statements  of
Operations  of the  Company  are  presented  as if, at January 1, 1998,  (i) the
Company had completed the 1998 sales of its common shares and Series B preferred
shares and used the net proceeds to acquire  preferred units and common units of
the Operating  Partnership,  and (ii)the Operating  Partnership acquired various
office and industrial  properties (eight  properties  acquired in 1998 and three
properties  acquired in 1999) with cash and debt  proceeds.  The  unaudited  Pro
Forma  Condensed  Consolidated  Statements  of  Operations  should  be  read  in
conjunction with the historical  financial statements contained in the Company's
Form 10-K. In management's  opinion,  all  adjustments  necessary to reflect the
effects of the transactions described above have been made.

The unaudited Pro Forma Condensed  Consolidated  Statements of Operations of the
Company are not necessarily  indicative of what the actual results of operations
would have been assuming the  transactions  described  above had occurred at the
dates  indicated  above,  nor do they  purport to present the future  results of
operations of the Company.
<TABLE>
<CAPTION>
                                                        Six months ended
                                                          June 30, 1999
                                                 ------------------------------
                                                     1999              1998
                                                 ------------      ------------
<S>                                              <C>               <C>
Total revenue (in thousands).................    $    109,403      $     93,830
                                                 ============      ============

Net income available to common
  shareholders (in thousands)................    $     10,193      $      5,688
                                                 ============      ============

Earnings per diluted common share............    $       0.67      $       0.37
                                                 ============      ============
</TABLE>













                                      -12-
<PAGE>
9.  SUBSEQUENT EVENTS

Subsequent to June 30, 1999, the Company  acquired and sold the following office
and  industrial  properties,  and  parcels of land (See  "Liquidity  and Capital
Resources" for a description of the debt terms.):
<TABLE>
<CAPTION>


                                               ACQUISITION
                                     NET       COST/SALES
                                   RENTABLE     PRICE (IN    MORTGAGE    MONTH
                                   SQ. FT./     MILLIONS)    DEBT (IN   ACQUIRED
  PROPERTY          LOCATION        ACRES         (1)        MILLIONS)   SOLD
- -------------------------------------------------------------------------------
<S>                 <C>            <C>          <C>          <C>        <C>
ACQUIRED
Office:
 300 Craig         Hillside,
  Place(3)          IL              163,070    $     8.6     $    6.5    July
 800-810 Jorie     Oakbrook,
  Blvd.             IL              190,829         29.5         21.0    August
                                  -----------------------------------
Total Office
  Acquired                          353,899    $    38.1     $   27.5
                                  ===================================
Land:
 Aurora III (4)    Aurora, IL     13.5 Acres   $     0.9     $     --    July
 300 West
  Monroe Street
  & 25 and 77
  South Wacker
  Drive (5)        Chicago, IL     1.4 Acres        55.9         28.0    July
                                  ===================================
Total Land
  Acquired                        14.9 Acres   $    56.8     $   28.0
                                  ===================================
SOLD
Office:
 941-961 Weigel
  Drive            Elmhurst, IL     123,077
Industrial:
 300 Craig Place   Hillside, IL     163,070
 306-310 Era Drive Northbrook, IL    36,495
 515 Huehl Road/
   500 Lindberg
   Road            Northbrook, IL   201,244
 555 Huehl Road    Northbrook, IL    74,000
 1301 Ridgeview
   Drive           McHenry, IL      217,600
 3818 Grandville/
   1200
   Northwestern    Gurnee, IL       345,232
 801 Technology    Libertyville,
   Way               IL              68,824
 901 Technology    Libertyville,
   Way               IL              68,824
 1001 Technology   Libertyville,
   Way               IL             212,831
                                  ---------
Total Office &
  Industrial Sold
  (2),(6)                         1,511,197    $    89.5     $   63.2    July
                                  ====================================
Land:
 180 Kehoe Blvd.   Carol Stream,
   (7)               IL           7.5 Acres    $    1.0            --    July
                                  ===================================

- ---------------
<FN>
(1)  Acquisition  cost includes cash paid at closing plus prorations and accrued
     real  estate  taxes.  Sales  price  is  stated  net of  closing  costs  and
     prorations.

(2)  Mortgage debt  represents  the amount of debt repaid with sales proceeds or
     assumed by the purchaser.

(3)  This  property  was  purchased  from a board  member who is also a minority
     interest unit holder of the Operating Partnership. The $6.5 million of debt
     was assumed by the Company upon acquisition of the property.

(4)  The Company has  contracts  that require it to purchase  132.7 acres over a
     three  to five  year  period.  Certain  minimum  installment  payments  are
     required;  however, the timing of purchases is at the Company's discretion.
     This purchase is a part of these contracts.


                                      -13-
<PAGE>
(5)  This  property  was acquired  with two  acquisition  mortgage  loans in the
     amounts of $4.0 million and $24.0 million. The $4.0 million loan is secured
     by the parcel located at 25 and 77 South Wacker Drive,  matures on November
     1, 2001, and bears interest at (a) until funding of a construction loan for
     the 300 West  Monroe  Street  parcel,  the Prime  Rate plus  0.5%,  and (b)
     thereafter  at LIBOR plus 2.75%.  The $24.0  million loan is secured by the
     adjacent  parcel located at 300 West Monroe Street,  matures on May 1, 2000
     and bears  interest at the Prime Rate plus 0.5% and has been  guaranteed by
     the Company. The loans are cross-collateralized.

(6)  These properties were sold in a single transaction with a total sales price
     of $89.5 million,  resulting in a gain of  approximately  $4.2 million.  As
     part of the sale, the Company agreed to assume  responsibility  for leasing
     two of the properties  for five years,  once the existing  tenants'  leases
     expire in 2000 and 2001. The Company's total lease obligation is reduced as
     existing tenants renew their leases or as new leases from third parties are
     executed for space in the properties. As a result of these commitments, the
     gain will be deferred  until the tenants  either  renew their leases or are
     replaced.  The gain may be reduced by any obligations the Company may incur
     as a result of these commitments.

(7)  Prime Group Realty Services, Inc., an unconsolidated affiliate, constructed
     an  office/warehouse  facility on this parcel and sold it to the purchaser.
     This  affiliate  leased the land from the Company during the portion of the
     construction period in which the Company owned the land.
</FN>
</TABLE>
Under the provisions of one of the Credit  Facilities,  the Company is obligated
to  maintain  interest  rate  contracts  on  a  portion  of  its  variable  rate
indebtedness.  The Company  entered into an interest rate cap agreement in July,
1999 with a  financial  institution  for an original  notional  amount of $150.0
million at 7.0% during the period from July 1 to October 1, 1999.

ITEM 2:  MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS
         OF OPERATIONS
- -------  -----------------------------------------------------------------------

OVERVIEW

We are a  fully-integrated  real estate company providing  property  management,
leasing,  marketing,  acquisition,  development,  redevelopment,   construction,
finance and other related  services.  We intend to qualify as a REIT for federal
income  tax  purposes.  Through  the  Operating  Partnership,  we own 26  office
properties  containing  an aggregate of  approximately  7.3 million net rentable
square feet, 40 industrial  properties  containing an aggregate of approximately
4.9  million  net  rentable  square  feet,  one retail  center  and one  parking
facility. The properties are located primarily in the Chicago metropolitan area.
In  addition,  we own a mortgage on an office  property  containing  728,406 net
rentable square feet. We also own approximately  243.4 acres of developable land
and rights to acquire more than 286.8 additional acres of developable land which
management  believes could be developed with approximately 12.1 million rentable
square feet of additional office and industrial space.

In terms of net rentable square feet, at June 30, 1999,  approximately  81.7% of
our office properties and 85.1% of our industrial  properties are located in the
Chicago  metropolitan  area  in  prime  business  locations  within  established
business  communities.  The properties located in the Chicago  metropolitan area
account for  approximately  88.6% of our total  rental and tenant  reimbursement
revenue for the six months ended June 30, 1999. Our remaining office  properties
are located in Cleveland, Ohio; Nashville,  Tennessee; Knoxville, Tennessee; and
the  Milwaukee,  Wisconsin  metropolitan  areas,  and our  remaining  industrial
properties  are located in the Columbus,  Ohio  metropolitan  area. We intend to
continue to invest in the acquisition,  development and  redevelopment of office
and industrial properties primarily located in the Chicago metropolitan area.
We intend to access multiple  sources of capital to fund future  acquisition and
development  activities.  These capital sources may include  undistributed  cash
flow,  borrowings  under  credit  facilities,  proceeds  from  the  issuance  of
long-term, tax-exempt bonds, joint venture arrangements and other debt or equity
securities  and other  bank  and/or  institutional  borrowings.  There can be no
assurance that any such financing will be obtained.

CAUTIONARY STATEMENTS

The following  discussion and analysis of the consolidated  financial  condition
and results of operations  should be read in conjunction  with our  Consolidated
Financial Statements and Notes thereto contained herein. Statements contained in
"Management's  Discussion  and  Analysis of Financial  Condition  and Results of
Operations,"  including without  limitation the "Year 2000" discussion,  include
certain forward-looking  statements within the meaning of the Private Securities
Litigation  Reform  Act of 1995 which  reflect  management's  current  view with
respect  to  future  events  and  financial  performance.  Such  forward-looking
statements are subject to certain risks and  uncertainties;  including,  but not
limited to, the effects of future events on our financial performance;  the risk
that we may be  unable  to  finance  our  planned  acquisition  and  development
activities;  risks related to the  industrial  and office  industry in which our
properties  compete,  including the potential adverse impact of external factors
such as inflation,  consumer confidence,  unemployment rates and consumer tastes

                                      -14-
<PAGE>
and preferences;  risks associated with our development activities,  such as the
potential for cost overruns,  delays and lack of predictability  with respect to
the financial returns associated with these development activities;  the risk of
a  potential  increase  in market  interest  rates  from  current  rates;  risks
associated with real estate  ownership,  such as the potential adverse impact of
changes  in the local  economic  climate  on the  revenues  and the value of our
properties;  and risks  associated with the impact of the Year 2000 issue on the
processing of date-sensitive information by our computerized information systems
as well as our tenants and  vendors.  Readers are  cautioned  not to place undue
reliance  on these  forward-looking  statements  which speak only as of June 30,
1999.

Among the facts about which we have made assumptions are the following:

- -    future  economic  conditions  which may  impact  upon the demand for office
     space and  tenant  ability  to pay rent,  either at  current  or  increased
     levels;

- -    prevailing interest rates;

- -    the extent of any inflation on operating expenses;

- -    our ability to reduce various expenses as a percentage of revenues;

- -    our  continuing  ability to pay amounts due to our  preferred  shareholders
     prior to any distribution to our common shareholders; and

- -    the continuing availability of our credit facilities.

In addition,  historical  results and percentage  relationships set forth herein
are not necessarily indicative of future operations.

RESULTS OF OPERATIONS

Comparison  of the Three  Months  Ended June 30, 1999 to the Three  Months Ended
June 30, 1998

In analyzing  the  operating  results for the quarter  ended June 30, 1999,  the
changes in rental and reimbursable  income,  property operating  expenses,  real
estate taxes and depreciation and amortization  from 1998 are due principally to
the addition of a full three months of operating  results for the six properties
acquired in the second quarter of 1998 and the addition of operating results for
the three properties acquired during the first quarter of 1999.

For the three  months  ended  June 30,  1999,  rental  revenue  increased  $10.3
million,  or 44.1%, to $33.7 million (includes lease termination revenue of $1.2
million), tenant reimbursement income increased $3.5 million, or 34.5%, to $13.5
million,  other  revenue  increased  $2.1  million to $4.1  million,  or 105.5%,
property operating expenses increased $3.7 million,  or 53.9%, to $10.6 million,
real estate tax expense  increased $2.9 million,  or 42.2%,  to $9.8 million and
depreciation and amortization  increased $2.4 million, or 39.1%, to $8.7 million
as compared to the three months ended June 30, 1998. The  additional  office and
industrial  properties acquired in 1999 resulted in total rental revenue of $6.4
million,  tenant  reimbursements  income  of $2.9  million,  property  operating
expenses  of  $2.5  million,  real  estate  tax  expense  of  $2.5  million  and
depreciation  and  amortization  of $1.3 million for the three months ended June
30, 1999.  Included in other revenue is a gain on the  termination of a treasury
lock  agreement  totaling  $1.2 million for the three months ended June 30, 1999
due to events described in "Recent Developments."

Rental  revenue,  tenant  reimbursement  income and other revenue for properties
held in both periods  increased $3.3 million for the three months ended June 30,
1999 primarily due to six properties acquired during the three months ended June
30, 1998 being owned during the entire  three months ended June 30, 1999,  lease
termination  revenue of $0.6 million and increased occupancy and rental rates at
the other properties.  Corresponding  property operating expenses increased $1.3
million and depreciation  and amortization  increased $1.0 million for the three
months ended June 30, 1999 primarily due to the six properties  acquired  during
three  months  ended June 30, 1998 being owned  during the entire  three  months
ended June 30, 1999.

Mortgage note interest  income  increased $0.1 million,  or 6.4% to $1.6 million
for the three months ended June 30, 1999 due to additional  advances and accrued
interest on the first mortgage note held  encumbering  the office property known
as 180 North LaSalle.

Interest expense  increased $3.5 million,  or 43.2%, to $11.5 million during the
three months ended June 30, 1999. The increase was due to new mortgages obtained
on certain of the  properties  which were  acquired  in 1999 and 1998  offset by
refinancing of debt on certain existing properties at lower interest rates.

General and  administrative  expense  increased  $0.1  million,  or 6.6% to $1.8
million for the three months ended June 30, 1999,  reflecting  costs  related to
the growth of the Company.

Income allocated to minority interests increased $0.7 million, or 29.2% to $3.1
million  for the three  months  ended June 30, 1999 due to an increase in income

                                      -15-
<PAGE>
before  minority  interests  of $3.4  million,  or 47.2% to $10.6  million.  The
increase  in  income  before  minority  interests  is due to a net  gain of $0.6
million on the  termination  of two treasury  lock  agreements,  and  additional
properties acquired in 1999 and 1998 and the effects they had on the revenue and
expenses described above.

Gain on sale of real estate  increased  $2.6  million for the three months ended
June 30, 1999 due to the sale of a portion of a property as more fully described
in "Recent Developments."

Net income  increased  $5.7  million,  or 131.8% to $10.1  million for the three
months ended June 30, 1999 due to the changes in revenue,  expenses and minority
interest described above.

Comparison  of the Six Months  Ended June 30, 1999 to the Six Months  Ended June
30, 1998.

In analyzing the operating  results for the six months ended June 30, 1999,  the
changes in rental and reimbursable  income,  property operating  expenses,  real
estate taxes and depreciation and amortization  from 1998 are due principally to
a full six months of  operating  results  for eight  properties  acquired in the
first half of 1998 and the additional operating results for the three properties
acquired during the first quarter of 1999.

For the six months ended June 30, 1999,  rental revenue increased $24.9 million,
or 59.9%, to $66.3 million (includes lease termination revenue of $4.1 million),
tenant  reimbursement income increased $8.0 million, or 43.4%, to $26.4 million,
other  revenue  increased  $3.4  million  or  121.5% to $6.2  million,  property
operating  expenses  increased $9.3 million,  or 77.9%,  to $21.2 million,  real
estate tax  expense  increased  $6.9  million,  or 56.6%,  to $19.1  million and
depreciation and amortization increased $5.1 million, or 43.7%, to $16.6 million
as compared to the six months ended June 30,  1998.  The  additional  office and
industrial properties acquired in 1999 resulted in total rental revenue of $10.6
million,  tenant  reimbursements  income  of $4.7  million,  property  operating
expenses  of  $4.1  million,  real  estate  tax  expense  of  $4.2  million  and
depreciation  and amortization of $2.1 million for the six months ended June 30,
1999.  Included in other revenue is the net gain on the  termination of treasury
lock  agreements  of $0.6  million for the six months  ended June 30,1999 due to
events described in "Recent Developments."

Rental  revenue,  tenant  reimbursement  income and other revenue for properties
held in both  periods  increased  $6.6 million for the six months ended June 30,
1999 primarily due to eight properties acquired during the six months ended June
30, 1998,  being owned  during the entire six months ended June 30, 1999,  lease
termination  revenue of $4.1 million and increased occupancy and rental rates at
the other properties.  Corresponding  property operating expenses increased $1.8
million and  depreciation  and  amortization  increased $1.3 million for the six
months ended June 30, 1999 primarily due to the eight properties acquired during
the six months  ended June 30,  1998  being  owned  during the entire six months
ended June 30, 1999.

Mortgage note interest  income  increased $0.1 million,  or 3.2% to $3.1 million
for the six months  ended June 30,  1999 due to the  additional  advances on the
first  mortgage note held  encumbering  the office  property  known as 180 North
LaSalle.

Interest expense  increased $7.4 million,  or 51.4%, to $21.9 million during the
six months ended June 30, 1999.  The increase was due to new mortgages  obtained
on certain of the  properties  which were  acquired  in 1999 and 1998  offset by
refinancing of debt on certain existing properties at lower interest rates.

General and  administrative  expense  increased  $0.8 million,  or 25.1% to $3.8
million for the six months ended June 30, 1999,  reflecting costs related to the
growth of the Company.

Income allocated to minority interests  increased $0.8 million, or 15.7% to $5.1
million  for the six months  ended June 30,  1999 due to an  increase  in income
before  minority  interests  of $6.2  million,  or 50.0% to $18.6  million.  The
increase in income before minority interests is principally due to a net gain of
$0.6 million on the termination of two treasury lock agreements,  and additional
properties acquired in 1999 and 1998 and the effects they had on the revenue and
expenses described above.

Gain on sale of real estate increased $2.6 million for the six months ended June
30, 1999 due to the sale of a portion of a property as more fully  described  in
"Recent Developments."

Net income increased $8.5 million, or 112.4% to $16.1 million for the six months
ended  June 30,  1999 due to the  changes  in  revenue,  expenses  and  minority
interests described above.

LIQUIDITY AND CAPITAL RESOURCES

HISTORICAL CASH FLOWS. We had net cash provided by operating activities of $37.6
million  and $17.2  million  for the six months  ended  June 30,  1999 and 1998,
respectively.  The $20.4  million  increase is  primarily  due to a $8.5 million
increase in net income, a $5.1 million increase in depreciation and amortization

                                      -16-
<PAGE>
expense,  a $0.6 million  increase in loss on land  development  option,  a $0.4
million  increase  in the  equity in loss of  unconsolidated  affiliate,  a $2.6
million  increase in income  allocated to minority  interests,  a $21.6  million
decrease in other assets,  a $0.5 million  increase in accrued  interest,  and a
$4.1  million  increase in accrued real estate  taxes,  offset by a $4.4 million
increase  in gain on sale of real  estate,  a $0.6  million  increase in gain on
treasury lock  terminations,  a $0.5 million decrease in extraordinary  items, a
$1.8  million  increase in interest  income and  development  costs added to the
mortgage  note  receivable   principal,   a  $1.7  million  increase  in  tenant
receivables, a $0.5 million increase in deferred rent receivable, a $7.5 million
decrease in accounts  payable and accrued  expenses,  a $0.2 million decrease in
liabilities for leases assumed and a $5.7 million decrease in other liabilities.

The primary uses of cash for investing  activities during the three months ended
June  30,  1999  included:   (i)  costs  associated  with  the  development  and
construction of four office  buildings and one industrial  facility  aggregating
231,896 square feet and 242,088 square feet, respectively, which are expected to
be available for occupancy during the second half of 1999; (ii) costs associated
with the  build-out  of  tenant  space;  and  (iii)  costs  for  pre-development
activities  associated  with  future  developments.  We had  net  cash  used  in
investing  activities  of $168.9  million and $267.3  million for the six months
ended June, 1999 and 1998, respectively.  The $98.4 million decrease in net cash
used in investing activities from the six months ended June 30, 1998 through the
six months ended June 30, 1999 was primarily due to a $20.8 million  decrease in
restricted  cash  escrows  and a $2.4  million net  repayment  of loans from the
services company,  an $80.3 million decrease in expenditures for real estate and
equipment,  principally related to property acquisitions and development, offset
by a $13.2 million  increase in proceeds from the sales of real estate,  a $10.0
million increase in option deposits,  a $7.7 million increase in advances on the
mortgage note receivable and a $0.6 increase in leasing costs.

The primary uses of cash for financing  activities during the three months ended
June 30, 1999 were (i)  principal  repayments  on notes payable of $2.8 million,
(ii)  preferred  and  common  stock   distributions  of  $16.2  million,   (iii)
distributions to minority interests (including distributions to limited partners
of the Operating  Partnership) of $7.0 million, and (iv) financing costs of $2.9
million.  Such uses were  partially  offset by proceeds  from new  borrowings of
$116.7  million  and  $15.3  million  of  deposits  returned  on  treasury  lock
agreements.  We had net cash provided by financing  activities of $102.6 million
and  $251.3   million  for  the  six  months  ended  June  30,  1999  and  1998,
respectively.  The $148.7  million  decrease in net cash  provided by  financing
activities  from the six months ended June 30, 1998 through the six months ended
June 30, 1999 was due to, (i) a $1.3 million decrease in financing costs, (ii) a
$15.3 million increase in deposits recovered on treasury lock agreements,  (iii)
$20.6 million in net proceeds from the credit facilities,  (iv) a $213.4 million
decrease in the repayment of mortgage notes payable,  offset by a $245.9 million
decrease in proceeds from mortgage notes payable, (v) a $1.0 million decrease in
contributions  from minority  interests,  (vi) a $95.3  million  decrease in net
proceeds from the sale of Series B - preferred  shares, a $47.2 million decrease
in net proceeds from a private  placement  and (vii) a $9.5 million  increase in
distributions  to  preferred  shareholders,  common  shareholders  and  minority
interests.

     LIQUIDITY.  Net cash provided from operations represents the primary source
of liquidity to fund distributions, debt service and recurring capital costs. In
order to qualify as a REIT for federal income tax purposes,  we must  distribute
95%  of  our  REIT's  taxable  income   (excluding   capital  gains)   annually.
Accordingly,  we currently intend to continue to make, but are not contractually
bound  to  make,  regular  quarterly  distributions  to  holders  of our  common
shares/units and our preferred shares. We have established  annual  distribution
rates as follows:  $1.35 per annum per common share/unit,  7.5% per annum ($1.50
per share) for each Series A Preferred  Share and 9% per annum ($2.25 per share)
for each Series B Preferred Share.

     CREDIT FACILITIES. Our credit facilities,  with a maximum loan availability
totaling $90.0 million,  have been provided by various  financial  institutions,
and are  collateralized  by first mortgages on certain  properties  owned by the
Operating  Partnership.  Subject  to our  compliance  with the  applicable  loan
covenants,  the credit  facilities may be used to provide funds for acquisitions
and development  activities and to provide the replacement letters of credit for
the $26.9 million of tax-exempt bonds. At June 30, 1999, $20.6 million was drawn
on credit facilities and $26.9 million was used to provide letters of credit for
the tax-exempt bonds, leaving $42.5 in the aggregate unused.

     PROPERTY  SALES.  Subsequent to June 30, 1999,  we sold certain  office and
industrial  properties  and used a portion of the net proceeds to acquire  other
office  properties and land parcels.  We may use the remaining  proceeds and the
sale of other properties to fund future acquisitions.

On April 19, 1999, we sold approximately 161,710 net rentable square feet of our
122 South Michigan Avenue office building to National-Louis University (NLU) for
a gross sales  price of $14.95  million and  consideration,  net of  commission,
closing costs and a capital improvement allowance,  of $12.1 million. As part of
this sale, NLU has also acquired an undivided  31.56% interest in certain common
areas  of the  property.  We will  continue  to own the  remaining  350,659  net
rentable  square feet of the building and will be responsible for the management
of the entire property.  The sale resulted in a gain of $4.4 million for the six
months ended June 30, 1999.
                                      -17-
<PAGE>
On July 8, 1999, we sold approximately 7.5 acres of land to Antunes  Properties,
L.L.C. for a purchase price of $1.0 million. Prime Group Realty Services,  Inc.,
an unconsolidated  affiliate,  constructed an office/warehouse  facility on this
parcel and sold it to Antunes Properties,  L.L.C. This affiliate leased the land
from the  Company  during the  portion of the  construction  period in which the
Company owned the land.

On July 14, 1999, we sold nine industrial  properties and one office property in
a single transaction with a total purchase price of $89.5 million.

     INDEBTEDNESS.  We have financed a portion of our acquisitions with proceeds
from mortgage notes payable from various financial institutions,  with fixed and
variable  interest rates and maturities  from 1999 through 2013. We believe that
our properties  have excess value that may be utilized for  additional  mortgage
borrowing or debt securitizations.

Under the  provisions  of one of the  Credit  Facilities,  we are  obligated  to
maintain interest rate contracts on a portion of our variable rate indebtedness.
We entered into an interest  rate cap  agreement in July,  1999 with a financial
institution for an original notional amount of $150.0 million at 7.0% during the
period from July 1 to October 1, 1999.

In connection  with our recent  acquisitions  and  development,  we obtained the
following new indebtedness during 1999:
<TABLE>
<CAPTION>
                                       ORIGINAL
                                       PRINCIPAL
                                      BALANCE (IN                     MATURITY
COLLATERAL (1),(2)     LOCATION        MILLIONS)     INTEREST RATE      DATE
- --------------------------------------------------------------------------------
<S>                    <C>             <C>           <C>             <C>
33 West Monroe        Chicago, IL      $   65.0        LIBOR + 2.0%     1/02
                                                        increasing
                                                         to 2.15%
                                                          in 1/00
National City
  Center (3),(4)      Cleveland, OH        63.6            6.75%          4/01
122 S. Michigan       Chicago, IL          14.0        LIBOR + 3.0%       5/04
National City
  Center (8)          Cleveland, OH        10.0        LIBOR + 4.5%      10/99
25 and 77 South
  Wacker (9)          Chicago, IL           4.0             (5)          11/01
300 West Monroe (9)   Chicago, IL          24.0      Prime Rate + 0.5%    5/00
Pine Meadows
  Corporate Center    Libertyville,
  (6),(9)               IL                  2.2            (6)            2/01
2000 USG Drive (9)   Libertyville,
                        IL                  4.2            (7)            2/01
800-810 Jorie Blvd.
  (3),(9)            Oakbrook, IL          21.0        LIBOR + 2.0%       8/02

<FN>
(1)  All of the loans are  subject  to  various  financial  and other  operating
     covenants and are  collateralized  by mortgages on the  properties,  unless
     otherwise indicated.

(2)  Interest  is  payable  monthly,  with  principal  due at  maturity,  unless
     otherwise indicated.

(3) Principal and interest payable monthly through maturity.

(4)  Consists  of two assumed  notes of $52.9  million  and $8.7  million,  with
     actual  interest  rates of 8.50% and 7.55%,  respectively.  These  interest
     rates are in excess of the market rate at the  acquisition  date,  which we
     estimated to be 6.75%.  As a result,  we have recorded an  additional  $2.0
     million of principal to reflect the imputed interest rate of 6.75% over the
     term of the notes.

(5)  Until the  funding of a  construction  loan  related to the 300 West Monroe
     parcel, Prime Rate plus 0.5%, and thereafter LIBOR plus 2.75%.

(6)  One $8.7 million  construction  loan commitment,  of which $1.1 million has
     been disbursed at LIBOR plus 2.25%, and one $9.4 million  construction loan
     commitment, of which $1.1 million has been disbursed at LIBOR plus 2.5%.

(7)  A $6.3 million construction loan commitment, of which $4.2 million has been
     disbursed at LIBOR plus 2.25%.

(8)  This  loan is  collateralized  by a pledge of a  portion  of the  ownership
     interests in the entity that owns the property.

(9)  This loan has been guaranteed by the Company.
</FN>
</TABLE>
     DEBT REPAYMENTS.  Our aggregate  indebtedness was $770.5 million and $593.2
million at June 30, 1999 and December 31, 1998, respectively.  At June 30, 1999,

                                      -18-
<PAGE>
such indebtedness had a weighted average maturity of 6.5 years and bore interest
at a weighted average interest rate of 6.77% per annum. At June 30, 1999, $343.4
million,  or 44.6%, of such indebtedness bore interest at fixed rates and $427.1
million,  or 55.4% of such  indebtedness,  including $74.4 million of tax-exempt
bonds, bore interest at variable rates.

In  connection  with  the  sale of nine  industrial  properties  and one  office
property on July 14, 1999,  mortgage debt of $63.2 million was repaid with sales
proceeds or assumed by the purchaser.

     FUTURE DEBT AND EQUITY OFFERINGS.  We filed a shelf registration  statement
on Form S-3 with the  Securities  and  Exchange  Commission,  which was declared
effective  on June 8, 1999,  to register up to $500.0  million of our equity and
debt  securities  for future sale at prices and on terms to be determined at the
time of offering.

     CAPITAL  IMPROVEMENTS.  Our  properties  require  periodic  investments  of
capital  for  tenant-related  capital  improvements.  During  1998,  our  tenant
improvements  and leasing  commissions  averaged $18.04 per square foot of newly
leased office space,  $3.85 per square foot of renewal leased office space,  and
$4.53 per square foot of newly leased  industrial  space.  Our estimated  annual
cost of recurring tenant  improvements and leasing  commissions is approximately
$8.6 million based upon average  annual square feet for leases  expiring  during
the years  ending  December  31,  1999 and  2000.  Our cost of  general  capital
improvements to our properties average approximately $3.0 million annually based
upon an estimate of $0.26 per square foot.

     LIQUIDITY  REQUIREMENTS.   We  expect  to  meet  our  short-term  liquidity
requirements  through  net cash  provided  by  operations  and  refinancings  of
maturing debt. We expect to meet our long-term  liquidity  requirements  for the
funding of property development,  property acquisitions, tenant improvements and
other non-recurring  capital improvements through a combination of net cash from
operations,  long-term secured and unsecured indebtedness  (including the credit
facilities),  joint  ventures,  property  sales and the  issuance of  additional
equity and debt securities. There can be no assurance that we will be successful
in obtaining  the required  amount of funds for these items or that the terms of
capital raising activities,  if any, will be as favorable as we have experienced
in prior periods.  The terms of the credit  facilities and our preferred  shares
impose  restrictions on our ability to incur  indebtedness  and issue additional
preferred shares.

FUNDS FROM OPERATIONS

Industry analysts  generally  consider Funds from Operations,  as defined by the
National Association of Real Estate Investment Trusts ("NAREIT"), an alternative
measure of  performance of an equity REIT.  Funds from  Operations is defined by
NAREIT to mean net income (loss)  determined in accordance with GAAP,  excluding
gains  (or  losses)  from  debt  restructuring  and  sales  of  property,   plus
depreciation and  amortization  (other than  amortization of deferred  financing
costs and  depreciation  of non-real  estate  assets) and after  adjustment  for
unconsolidated  partnerships  and joint  ventures.  We believe  that in order to
facilitate a clear understanding of the combined historical operating results of
the Company,  Funds from Operations  should be examined in conjunction  with net
income as presented in the unaudited financial  statements included elsewhere in
this Form 10-Q. The following table represents the unaudited  calculation of our
Funds from Operations for the three months and six months ended June 30,1999 and
1998:
<TABLE>
<CAPTION>
                                 Three Months                Six Months
                                Ended June 30               Ended June 30
                         --------------------------  --------------------------
(IN THOUSANDS)               1999           1998         1999          1998
                         ------------  ------------  ------------  ------------
<S>                      <C>           <C>           <C>           <C>
Net income allocated to
 common shareholders.... $      7,025  $      2,997  $     10,037  $      5,523
Adjustments to reconcile
 to Funds from Operations:
  Real estate
   depreciation and
   amortization........         8,088         5,834        15,421        10,849
  Amortization of costs
   for leases assumed..           246           275           491           566
  Straight-line
   rental revenue......          (614)         (494)       (1,208)         (522)
  Gain on sale of
   real estate.........        (4,357)           --        (4,357)           --
  Net gain on treasury
   lock terminations...        (1,172)           --          (615)           --
  Loss on land
   development option..            --            --           600            --
  Minority interests...         4,861         2,352         6,917         4,317
  Extraordinary loss...            --           525            --           525
                         ------------  ------------  ------------  ------------
Funds from Operations(1) $     14,077  $     11,489  $     27,286  $     21,258
                         ============  ============  ============  ============

                                      -19-
<PAGE>
- ---------------
<FN>
(1)  We compute Funds from Operations in accordance  with standards  established
     by the Board of Governors of NAREIT in its March 1995 White Paper (with the
     exception  that we report rental  revenues on a cash basis (e.g.,  based on
     contractual lease terms),  rather than a straight-line GAAP basis, which we
     believe  results in a more accurate  presentation  of its actual  operating
     activities),  which may differ from the methodology  for calculating  Funds
     from Operations used by other certain office and/or  industrial  REITs and,
     accordingly,  may not be comparable to such other REITs. As a result of our
     reporting  rental  revenues  on  a  contractual  basis,   contractual  rent
     increases may cause  reported Funds from  Operations to increase.  Further,
     Funds from Operations does not represent amounts available for management's
     discretionary use because of needed capital replacement or expansion,  debt
     repayment obligations,  or other commitments and uncertainties.  Funds from
     Operations should not be considered as an alternative to net income (loss),
     as an  indication  of our  performance  or to cash  flows as a  measure  of
     liquidity or the ability to pay dividends or make distributions.
</FN>
</TABLE>

IMPACT OF YEAR 2000
- -------------------

OVERVIEW OF Y2K PROBLEM

The Year 2000 or "Y2K" problem refers to the inability of many existing computer
programs  to properly  recognize  a year that  begins  with "20"  instead of the
familiar "19." If left uncorrected, many computer programs having time-sensitive
software  may  recognize a date using "00" as the year 1900 rather than the year
2000.  The  failure to  accurately  recognize  the year 2000 and other key dates
could result in a variety of problems from day  miscalculation to the failure of
entire systems.

THE YEAR 2000 PROGRAM

In mid 1998,  we formed a Year 2000  committee  for the  purpose  of  creating a
program (the "Program") to identify, understand and address the myriad of issues
associated with the Y2K problem.  Our committee is comprised of  representatives
from senior  management and various  departments  including  accounting,  legal,
operations, and information systems. Due to the wide ranging implications of the
Y2K problem, management decided to carry out the Program in multiple phases over
the remainder of 1999. What follows is a description of the activities that have
been or are expected to be  conducted in each phase of the Program,  including a
summary  of the  results  obtained  to date  and a time  table  for  completion.
Although many of the phases of the Program are being carried out simultaneously,
the various phases will be discussed separately.

PHASE ONE - ASSESSING OUR Y2K READINESS

The initial step in assessing our Y2K readiness  consisted of conducting a study
to identify any systems that were date  sensitive and,  accordingly,  could have
potential  Y2K  problems.  The study  included  an  examination  of  information
technology and  non-information  technology systems at our home and area offices
and at our  properties.  The  initial  step  of  identifying  systems  has  been
completed by our information services department, property managers and building
engineers  through  a  combination  of  physical   inspections, and  information
interviews with our employees and contact with vendors.

After identifying systems that could have a potential Y2K problem, we determined
which of the systems actually have Y2K issues. Much of the required  information
is within the exclusive control of our vendors and manufacturers,  who are being
contacted   through   standard  form  letters  and  telephone  calls  requesting
information.   Our  property   managers  are  each   responsible  for  gathering
information on the Y2K compliance of specific property  systems.  In addition to
examining our systems for compliance,  we continue to assess the progress of the
Building  Owners and Managers  Association  ("BOMA") and other industry  leaders
that  are  monitoring   the   compliance   efforts  of  the  major  utility  and
telecommunications  companies.  The  following  is a  summary  of the  Phase One
results obtained to date.

BUILDING MANAGEMENT SYSTEMS

We have identified three categories of building  management  systems in which we
have the most exposure to potential Y2K problems. These categories include:

     -    Building  automation  (e.g.  energy  management,  HVAC,  fire and life
          safety)
     -    Security card access
     -    Elevator

In late 1998, our property staff began gathering data on the equipment in all of
our  buildings.  By the end of the second  quarter of 1999,  a  preliminary  Y2K
compliance study of the building management systems outlined above was completed
for all our buildings.  Following review of such studies,  management expects to
be able to  determine  our  state of  readiness  as to the  building  management
systems. Management is in the process of reviewing this study and addressing any
issues identified by it.
                                      -20-
<PAGE>
INFORMATION SYSTEMS

We have identified  five categories of information  systems in which we have the
most exposure to potential Y2K Problems. These categories include:

     -    Accounting and property management
     -    Network operating systems
     -    Desktop hardware and software
     -    Secondary systems
     -    Telecommunication systems

ACCOUNTING AND PROPERTY MANAGEMENT

We currently have two accounting  and property  management  systems that are not
Y2K  compliant.  We have  selected  a new  accounting  and  property  management
software  system that will be implemented  company wide under the following time
table:

     -    Installation  of new software  and testing - Third and Fourth  Quarter
          1999
     -    Full Y2K compliance - Fourth Quarter 1999

NETWORK OPERATING SYSTEMS

We believe that network operating servers are currently compliant.

DESKTOP SOFTWARE

We have  reviewed  all of our desktop  systems and  software  applications,  and
believe that they are compliant.

SECONDARY INFORMATION SYSTEMS

Our  "secondary"  information  systems  include,  but are not limited to:  human
resources,   fixed-asset  systems,  and  forecasting  modeling  software,  which
provides  projections  on property  returns and other  items.  We also  reviewed
internally  developed  software,  such as our budget program and tenant-services
system. We have reviewed all of our secondary information systems and feel these
systems are Y2K compliant.

TELECOMMUNICATION SYSTEMS

We believe that some of our telecommunication  systems may not be Y2K compliant.
We are currently  assessing these systems and, where material,  plan to replace,
modify or upgrade these systems as appropriate,  by the end of the third quarter
of 1999.

PHASE TWO - DETERMINING THE COST OF ACHIEVING Y2K READINESS AND IMPLEMENTING THE
Y2K ACTION PLAN

We  initiated  a  comprehensive  corporate  wide plan in mid-1998 to replace our
financial and operational systems by the beginning of the fourth quarter of 1999
in order to facilitate our future growth and to improve operational controls. We
anticipate  the total cost of this effort will be $3.5  million to $4.0  million
and will have the  additional  benefit of making our financial  and  operational
systems Y2K  compliant.  Of the total project costs,  we estimate  approximately
$3.2 million to $3.7 million is attributable to the purchase and  implementation
of new  software  and  equipment  which will be  capitalized  and the  remainder
related to the assessment,  modifications to existing hardware and software, and
training which will be expensed as incurred. We have incurred approximately $1.8
million of the total estimated costs as of June 30, 1999.

PHASE THREE - ASSESSING OUR RISKS OF NON-COMPLIANCE

We do not  believe  that the  impact of the Y2K  problem  will  have a  material
adverse effect on our financial condition and results of operations. Such belief
is based on our  analysis  of the risks  related to both our own  potential  Y2K
problems  discussed above and our assessment of the Y2K problems of our vendors,
suppliers and customers.

FAILURE OF BUILDING MANAGEMENT SYSTEMS

We  believe  that  the  Y2K  risks  to our  financial  condition  and  operation
associated  with a failure of building  management  systems is immaterial due to
the fact that each of our properties have, for the most part,  separate building
management  systems.  Accordingly,  a Y2K  problem  that is  experienced  at one
building should have no effect on our other buildings.  In addition,  based upon
our study results received to date, we believe that we will have sufficient time
to correct  those system  problems  within our control  before the year 2000. We
have been testing  building  systems at several of our buildings  sites and will
continue throughout the remainder of 1999.

In the event we do experience a failure of essential building management systems
at one or more of our buildings,  whether due to a failure of one of our systems
or an interruption of utilities,  management believes that the individual tenant
leases will protect us from claims of  constructive  eviction or other  remedies


                                      -21-
<PAGE>
that could result in a termination  of lease rights.  It is also our belief that
most of our  leases  eliminate,  limit or  quantify  the  rights  of a tenant to
receive an abatement under such  circumstances.  Although there is always a risk
of claims being brought on a  non-contractual  basis (e.g.  in tort),  it is our
belief that our efforts to identify and solve Y2K problems  will  minimize  such
risk.  We have also  attempted  to allocate  the risk of  non-compliance  to the
vendors and manufacturers of the building  management and information systems by
establishing  standard  riders and addenda to be attached to new  contracts  for
systems using time sensitive data.

FAILURE OF INFORMATION SYSTEMS

Since our major source of income is rental payments under long term leases,  the
failure of key  information  systems is not expected to have a material  adverse
effect on our financial condition and results of operations.  Even if we were to
experience problems with the information  systems, the payment of rent under the
leases would not be excused. In addition, we expect to correct those information
system problems within our control before the year 2000,  thereby  minimizing or
avoiding the increased cost of correcting problems after the fact.

THE Y2K PROBLEMS OF OUR VENDORS

The success of our  business is not closely  tied to the  operations  of any one
manufacturer,  vendor or  supplier.  Accordingly,  if any of our  manufacturers,
vendors or suppliers ceases to conduct business due to Y2K related problems,  we
expect to be able to contract with alternate providers without  experiencing any
material adverse effect on our financial condition and results of operations.

THE Y2K PROBLEMS OF OUR CUSTOMERS

Due to our broad  customer/tenant  base,  the  success  of our  business  is not
closely tied to the success of any particular  tenant.  Accordingly,  we believe
that there should not be a material  adverse  effect on our financial  condition
and results of operations if any one of our tenants  ceases to conduct  business
(and pay rent) due to Y2K related problems.

DOOMSDAY SCENARIO

We are aware that it is  generally  believed  that the world's Y2K  problem,  if
uncorrected,  may result in an  economic  crisis of global  proportions.  We are
unable to determine  whether such  predictions  are true or false.  As mentioned
above,  we expect that the nature of our income  (rent from good credit  tenants
under  long-term  leases  ) should  serve  as a hedge  against  any  short  term
disruptions  of business.  However,  if the doomsday  scenarios  prove true,  we
assume that all companies  (including  ours) will  experience the effects in one
way or another.

PHASE FOUR - DEVELOPING CONTINGENCY PLANS

We are currently  preparing a contingency  plan that is expected to be completed
by the end of the third quarter of 1999.

INFLATION
- ---------

Substantially all of our office and industrial leases require tenants to pay, as
additional  rent, a portion of any  increases in real estate taxes and operating
expenses  over a base  amount.  In addition,  many of the office and  industrial
leases provide for fixed increases in base rent or indexed escalations (based on
the  Consumer  Price  Index or other  measures).  We believe  that  inflationary
increases in expenses will be offset, in part, by the expense reimbursements and
contractual rent increases described above.

As  of  June  30,  1999,   approximately   $427.1  million  of  our  outstanding
indebtedness  (including  our Credit  Facilities)  was  subject to  interest  at
floating  rates and future  indebtedness  may also be subject to  floating  rate
interest.

ITEM 3:  QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
- -------  ----------------------------------------------------------

The  following  table  provides   information  about  our  derivative  financial
instruments  and other  financial  instruments  that are sensitive to changes in
interest rates. For our mortgage note receivable, mortgage notes payable, credit
facilities and bonds payable, the table presents principal cash flows, including
principal amortization,  and related weighted-average interest rates by expected
maturity dates as of June 30, 1999.











                                      -22-
<PAGE>
<TABLE>
<CAPTION>
                            Interest Rate Sensitivity
                      Principal amount by Expected Maturity
                              Average Interest Rate

                     1999    2000    2001    2002    2003   Thereafter   Total
                    ------  ------  ------  ------  ------  ----------  -------
                                     (Dollars in Millions)
<S>                 <C>     <C>     <C>     <C>     <C>     <C>         <C>
Assets:
 Mortgage notes
  receivable (1)..      --      --      --      --     --   $     72.8  $  72.8
 Fixed rate.......      --      --      --      --     --         9.64%

Liabilities:
 Mortgage notes
  payable (2):
   Fixed rate.....  $  3.0  $  6.4  $ 63.0  $  4.5  $ 4.8   $    261.7  $ 343.4
   Average
    interest rate.    7.19%   7.24%   7.14%   7.29%  7.29%        7.29%

 Variable rate....  $200.5  $ 53.2  $ 20.0  $ 65.0     --   $     14.0  $ 352.7
 Average interest
  rate (3),(4)....    6.66%   7.14%   7.18%   7.63%    --         7.90%

 Bonds payable (2):
  Variable rate...      --      --      --      --     --   $     74.4  $  74.4
  Average interest
   rate (3).......      --      --      --      --     --          5.0%

- ---------------
<FN>
(1)  See Note 2 to our  consolidated  financial  statements in our Form 10-K for
     the year ended December 31, 1998 for additional information.

(2)  See Note 4 to our  consolidated  financial  statements in our Form 10-K for
     the year ended December 31, 1998 for additional information.  The bonds are
     credit  enhanced with letters of credit  provided  under credit  facilities
     which expire in November, 2000 and March, 2002.

(3)  Based  upon the  rates in  effect at June 30,  1999.  The  weighted-average
     interest rate on our mortgage notes payable,  credit facilities,  and bonds
     payable  at June 30,  1999 were  6.7%,  7.0%,  and 5.0%,  respectively.  If
     interest rates on our variable rate debt increased by one percentage point,
     our annual interest expense would increase by  approximately  $4.3 million.

(4)  The Company  entered into an interest rate cap  agreement  with a financial
     institution  for an  original  notional  amount of $150.0  million  at 7.0%
     during the period from July 1 to October 1, 1999.
</FN>
</TABLE>

                           PART II: OTHER INFORMATION

ITEM 1.  LEGAL PROCEEDINGS
- -------  -----------------

No material  developments with respect to legal proceedings  occurred during the
period covered by this quarterly report.

ITEM 2.  CHANGES IN SECURITIES AND USE OF PROCEEDS
- -------  -----------------------------------------

On April 13, 1999, the Company contractually modified the terms of the Company's
Series A preferred shares. Under the original terms, the holders of the Series A
preferred  shares had the right to cause the Company to redeem their shares at a
price of $20 per  share if for two  consecutive  quarters  (1) the  ratio of the
Company's debt plus nonconvertible  preferred shares divided by its total market
capitalization  exceeded 65% or (2) its fixed charges  coverage ratio fell below
1.4. In addition,  under the original  terms,  the failure to satisfy  either of
these covenants for two consecutive  quarters would have placed  restrictions on
the Company's ability to incur debt or issue preferred equity. The new agreement
eliminates the debt to market capitalization  covenant. In exchange, the holders
of the Series A  preferred  shares were  granted  the future  right to cause the
redemption  of their  shares at a price of $20.00  per share upon 120 days prior
written notice,  which redemption may occur during the period beginning  January
15,  2002 and ending  January  15,  2004.  The Series A  preferred  shares  will
continue to pay an annual  dividend  of $1.50 per share and will  continue to be
convertible  into  common  shares on a one for one basis  subject  to  customary
anti-dilution  adjustments.  The Company made a $0.4 million one-time payment as
part of this  transaction,  which  will be  amortized,  using the  straight-line
method,  through  January  15,  2002.  As  of  April  13,  1999,  all  2,000,000
outstanding  shares of the Company's Series A preferred shares were reclassified
to redeemable equity at their aggregate  redemption price of $40.0 million,  net
of the unamortized transaction fee of $0.37 million, in the consolidated balance
sheet.

                                      -23-
<PAGE>
ITEM 3.  DEFAULTS UPON SENIOR SECURITIES
- -------  -------------------------------

     None.

ITEM 4.  SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS
- -------  ---------------------------------------------------

The Company's  annual Meeting of  Shareholders  was held on May 19, 1999. At the
meeting,  shareholders  voted  on (i)  the  re-election  of two  trustees;  (ii)
approval of the First Amendment to the Company's  Share  Incentive  Plan,  which
increases the number of shares available under the Plan from 1,850,000 shares to
2,540,000 shares; and (iii) ratification of the appointment of Ernst & Young LLP
as the Company's  independent  auditors for 1999. Voting on each such matter was
as follows:
<TABLE>
<CAPTION>
                                 Votes        Votes      Withheld/     Broker
                                  For        Against    Abstentions   Non-Votes
                              -----------  -----------  -----------  -----------
<S>                           <C>          <C>          <C>          <C>
1. Re-election of Trustees:

   Richard S. Curto            13,670,390          ---       42,485           0
   Christopher J. Nassetta     13,670,390          ---       42,485           0

2. Authorization of First
   Amendment to Share
   Incentive Plan              13,364,888      336,521       11,466           0

3. Ratification of Auditors:   13,700,329        6,736        5,810           0
</TABLE>

ITEM 5.  OTHER INFORMATION
- -------  -----------------

     None.

                                      -24-
<PAGE>
ITEM 6.  EXHIBITS AND REPORTS ON FORM 8-K
- -------  --------------------------------

(a)       Exhibits:

 Exhibit
 Number                          Description
- --------- ----------------------------------------------------------------------

   3.1    Amendment No. 21 to the Amended  and  Restated  Agreement  of  Limited
          Partnership  dated as of April  15,  1999 as  filed as an  exhibit  to
          Amendment  No. 1 to the Company's  Registration  Statement on Form S-3
          (No. 333-70369) and incorporated herein by reference.

   3.2    Amendment  No. 22 to the Amended  and  Restated  Agreement  of Limited
          Partnership  dated as of April  22,  1999 as  filed as an  exhibit  to
          Amendment  No. 1 to the Company's  Registration  Statement on Form S-3
          (No. 333-70369) and incorporated herein by reference.

   3.3    Amendment  No. 23 to the Amended  and  Restated  Agreement  of Limited
          Partnership  dated  as of May  15,  1999 as  filed  as an  exhibit  to
          Amendment  No. 1 to the Company's  Registration  Statement on Form S-3
          (No. 333-70369) and incorporated herein by reference.

   3.4    Amendment  No. 24 to the Amended  and  Restated  Agreement  of Limited
          Partnership dated as of June 15, 1999.

  10.1    First Amendment to Series A Preferred  Securities  Purchase Agreement,
          dated as of April 13, 1999,  among Security  Capital  Preferred Growth
          Incorporated, Prime Group Realty Trust and Prime Group Realty, L.P. as
          filed as an exhibit to the  Company's  Form 8-K dated  April 13,  1999
          (filed on April 15, 1999, File No. 001-13589) and incorporated  herein
          by reference.

  12.1    Computation  of ratios of  earnings  to  combined  fixed  charges  and
          preferred share distributions.

  27.1    Financial Data Schedule

(b)       Reports on Form 8-K:

We filed the following  report on Form 8-K: Form 8-K dated April 13, 1999 (filed
on April 15, 1999;  File No.  001-13589)  relating to a permanent  waiver by the
sole holder of the  Company's  Series A Preferred  Shares of the  Debt-to-Market
Capitalization Covenant contained in the Company's charter documents.



                                      -25-
<PAGE>
                                   SIGNATURES


Pursuant  to the  requirements  of the  Securities  Exchange  Act of  1934,  the
Registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned thereunto duly authorized.


                                           PRIME GROUP REALTY TRUST
                                           ------------------------
                                           Registrant



Date: August 13, 1999                      /s/ Richard S. Curto
      ---------------                      --------------------
                                           Richard S. Curto
                                           President and Chief Executive Officer



Date: August 13, 1999                      /s/  William M. Karnes
      ---------------                      ----------------------
                                           William M. Karnes
                                           Executive Vice President and
                                           Chief Financial Officer






























































                                      -26-

                                                                     Exhibit 3.4
                    AMENDMENT NO. 24 TO AMENDED AND RESTATED
                        AGREEMENT OF LIMITED PARTNERSHIP
                           OF PRIME GROUP REALTY, L.P.


     This  AMENDMENT  NO.  24 TO  AMENDED  AND  RESTATED  AGREEMENT  OF  LIMITED
PARTNERSHIP OF PRIME GROUP REALTY,  L.P. (this  "Amendment")  is made as of June
15, 1999 by Prime Group Realty Trust,  a Maryland real estate  investment  trust
("PGRT"),  as the  Managing  General  Partner of Prime  Group  Realty,  L.P.,  a
Delaware  limited  partnership (the  "Partnership"),  and on behalf of the other
Partners (as  hereinafter  defined).  Capitalized  terms used but not  otherwise
defined  herein shall have the  meanings  given to such terms in the Amended and
Restated  Agreement  of  Limited  Partnership  of the  Partnership,  dated as of
November 17, 1997, by and among PGRT and the other parties signatory thereto, as
amended thereafter (as so amended, the "Limited Partnership Agreement").

                              W I T N E S S E T H:

     WHEREAS,  pursuant to Section 4.3.C. of the Limited Partnership  Agreement,
the Managing  General  Partner may raise all or any portion of Additional  Funds
required by the  Partnership  for the  acquisition  of additional  properties by
accepting  additional  Capital  Contributions,  including the issuance of Common
Units for  Capital  Contributions  that  consist of  property  or  interests  in
property;

     WHEREAS,  pursuant to that certain Exchange  Agreement dated as of December
15,  1997 by and  between H Group  LLC,  a Delaware  limited  liability  company
("HG"), and the Partnership (the "Exchange  Agreement"),  HG agreed, among other
things,  to grant to the  Partnership an option (the "First Option") to exchange
the Underlying Option (as defined in the Exchange  Agreement) for 220,000 Common
Units of Limited Partner Interest  (subject to adjustment  pursuant to the terms
of the Exchange  Agreement),  which grant of the First Option  contemplated  the
transfer  by the  Partnership  to HG of 5,000  Common  Units of Limited  Partner
Interest  on the date  thereof  and,  subject to the terms of the First  Option,
5,000 Common Units of Limited Partner Interest  (subject to adjustment  pursuant
to the terms of the Exchange Agreement) on the 15th day of each month thereafter
(each such transfer a "First Option  Maintenance  Transfer")  for such number of
months set forth in the Exchange Agreement;

     WHEREAS,  the Partnership has agreed to the terms of the grant by HG of the
First Option set forth in the Exchange Agreement and desires to effect the First
Option Maintenance Transfer due on June 15, 1999;

     WHEREAS,  HG was  admitted  to the  Partnership  as an  Additional  Limited
Partner as of December  15,  1997  pursuant  to  Amendment  No. 2 to the Limited
Partnership Agreement;

     WHEREAS, the Partners desire to amend the Limited Partnership  Agreement to
reflect the increase in outstanding  Common Units resulting from the issuance of
Common Units to HG in connection with the First Option Maintenance  Transfer due
on June 15, 1999; and

     WHEREAS,  pursuant to Article 11 of the Limited Partnership Agreement,  the
Managing  General  Partner may consent (i) to the  transfer of the interest of a
Limited  Partner to a permitted  transferee  and (ii) to the  admission  of such
permitted transferee as a Substituted Limited Partner;

     WHEREAS,  Warren H. John was admitted to the  Partnership  as an Additional
Limited  Partner as of January 16, 1998 pursuant to that certain  Acknowledgment
by Substituted Limited Partner dated as of January 16, 1998 by Warren H. John to
PGRT, as Managing General Partner of the Partnership;

     WHEREAS, the Partners desire to amend the Limited Partnership  Agreement to
reflect the transfer of 37,259.0  Common Units (the "Units")  owned by Warren H.
John to Warren H. John,  Trustee of the Warren H. John Trust dated  December 18,
1998 (the "Trust");

     WHEREAS,  Sections  2.4  and  12.3  of the  Limited  Partnership  Agreement
authorize,  among other things, the Managing General Partner, as true and lawful
agent and attorney-in fact, to execute, swear to, acknowledge, deliver, file and
record this  Amendment  on behalf of each  Partner that has executed the Limited
Partnership Agreement and on behalf of the Partnership.

     NOW,  THEREFORE,  for good and  adequate  consideration,  the  receipt  and
sufficiency  of which are  hereby  acknowledged,  the  parties  hereto  agree as
follows:






                                       -1-
<PAGE>
     SECTION 1. ACCEPTANCE OF CAPITAL CONTRIBUTION IN EXCHANGE FOR COMMON UNITS.
(a) PGRT, as Managing General Partner and on behalf of the  Partnership,  hereby
accepts  the grant of the  rights  consisting  of the First  Option  during  the
nineteenth  month  of  the  term  of  the  First  Option  from  HG as a  Capital
Contribution  having a value on the date hereof of  $100,000,  in  exchange  for
6209.0 Common Units of Limited  Partner  Interest which are hereby issued by the
Partnership  to HG  pursuant  to  Section  4.3.C.  of  the  Limited  Partnership
Agreement,  and which are  evidenced  by Common Unit  Certificate  No. 46 of the
Partnership.

     (b) Each of the  Common  Units of  Limited  Partner  Interest  issued to HG
pursuant  to this  Section 1 shall  have the same  terms and  provisions  of the
Common Units of Limited  Partner  Interest issued by the Partnership on November
17, 1997 except that (i) the Exchange Rights  relating  thereto may be exercised
at any time after  December  15, 1999 (as opposed to November 17, 1998) and (ii)
such  Common  Units  of  Limited  Partner   Interest  will  be  subject  to  the
Registration  Rights  Agreement dated as of December 15, 1997 by and among PGRT,
the Partnership and HG as opposed to the Registration  Rights Agreement  entered
into by PGRT and the Partnership on November 17, 1997.

     SECTION 2. ACCEPTANCE OF THE TRUST AS A SUBSTITUTED  LIMITED  PARTNER.  The
Trust having  furnished to the Managing  General  Partner  certain  information,
including  an executed  Acknowledgment  and  Agreement  of  Substituted  Limited
Partner,  a true and correct copy of which is attached  hereto as Exhibit 1, the
Managing  General  Partner hereby  consents to Warren H. John's  transfer of the
Units to the Trust and to the  admission of the Trust as a  Substituted  Limited
Partner.

     SECTION 3.  AMENDMENT  OF EXHIBIT A TO THE LIMITED  PARTNERSHIP  AGREEMENT.
Exhibit A to the Limited Partnership Agreement is hereby amended and restated to
reflect the  aforementioned  change(s) by deleting Exhibit A attached thereto in
its entirety, and by attaching in lieu thereof a replacement exhibit in the form
of  Exhibit  A  attached  hereto.  From  and  after  the  effectiveness  of this
Amendment,  the amended and restated Exhibit A attached hereto shall be the only
Exhibit A to the Limited Partnership Agreement, unless and until it is hereafter
further amended.

     SECTION 4. REFERENCE TO AND EFFECT ON THE LIMITED PARTNERSHIP AGREEMENT.

     A. The Limited Partnership  Agreement is hereby deemed to be amended to the
extent necessary to effect the matters contemplated by this Amendment. Except as
specifically provided for hereinabove, the provisions of the Limited Partnership
Agreement shall remain in full force and effect.

     B. The execution,  delivery and  effectiveness  of this Amendment shall not
operate (i) as a waiver of any  provision,  right or  obligation of the Managing
General  Partner,  the other  General  Partner or any Limited  Partner under the
Limited Partnership Agreement except as specifically set forth herein or (ii) as
a waiver or consent to any subsequent action or transaction.

     SECTION 5.  APPLICABLE LAW. This Amendment shall be construed in accordance
with and  governed by the laws of the State of Delaware,  without  regard to the
principles of conflicts of law.

                            [signature page follows]
































                                       -2-
<PAGE>
                                       AMENDMENT NO. 24 TO AMENDED AND RESTATED
                                       AGREEMENT OF LIMITED PARTNERSHIP OF PRIME
                                       GROUP REALTY, L.P.

     IN WITNESS  WHEREOF,  the parties hereto have executed this Amendment as of
the date first written above.


                                           MANAGING GENERAL PARTNER:
                                           -------------------------

                                           PRIME GROUP REALTY TRUST, a
                                           Maryland real estate investment trust


                                           /s/ William M. Karnes
                                           ---------------------
                                           Name: William M. Karnes
                                           Title: Executive Vice President

                                           LIMITED PARTNERS:
                                           -----------------

                                           Each Limited Partner hereby executes
                                           this Amendment to the Limited
                                           Partnership Agreement.

                                           By:   PRIME GROUP REALTY TRUST, a
                                                 Maryland real estate investment
                                                 trust, as attorney-in fact


                                           /s/ William M. Karnes
                                           ---------------------
                                           Name: William M. Karnes
                                           Title: Executive Vice President




















































                                       -3-
<PAGE>
<TABLE>
                                   EXHIBIT A*/

               Partners, Number of Units and Capital Contributions
<CAPTION>
                                          Number of               Capital
Managing General Partner                 Common Units          Contribution
- ----------------------------------     -----------------     -----------------
<S>                                    <C>                   <C>
Prime Group Realty Trust                    15,136,488               **/
    77 West Wacker Drive
    Suite 3900
    Chicago, IL  60601
    Attn:  Richard S. Curto
           James F. Hoffman

General Partner
- ----------------------------------

The Nardi Group, L.L.C.                        927,100        $    18,542,000
    c/o Stephen J. Nardi
    4100 Madison Street
    Hillside, IL  60162

Limited Partners
- ----------------------------------

The Nardi Group, L.L.C.                        210,813        $     3,143,009
    c/o Stephen J. Nardi
    4100 Madison Street
    Hillside, IL  60162

Edward S. Hadesman                             388,677        $     7,773,540
Trust Dated May 22, 1992
    c/o Edward S. Hadesman
    2500 North Lakeview, Unit 1401
    Chicago, IL  60614

Grandville/Northwestern                          9,750        $       195,000
Management Corporation
    c/o Edward S. Hadesman
    2500 North Lakeview, Unit 1401
    Chicago, IL  60614

Carolyn B. Hadesman                             54,544        $     1,090,880
Trust Dated May 21, 1992
    c/o Edward S. Hadesman
    2500 North Lakeview, Unit 1401
    Chicago, IL  60614


- --------------------
<FN>
*/   As amended by  Amendment  No. 24 to the Amended and  Restated  Agreement of
     Limited Partnership of Prime Group Realty, L.P.

**/  This amount shall be inserted by the Managing General Partner.
</FN>
</TABLE>

                                       -4-
<PAGE>
<TABLE>
                               EXHIBIT A - CONT'D

               Partners, Number of Units and Capital Contributions

<CAPTION>
                                          Number of              Capital
Limited Partners (Cont'd)                Common Units          Contribution
- ----------------------------------     -----------------     -----------------
<S>                                    <C>                   <C>
Lisa Hadesman 1991 Trust                       169,053        $     3,381,060
    c/o Edward S. Hadesman
    2500 North Lakeview, Unit 1401
    Chicago, IL  60614

Cynthia Hadesman 1991 Trust                    169,053        $     3,381,060
    c/o Edward S. Hadesman
    2500 North Lakeview, Unit 1401
    Chicago, IL  60614

Tucker B. Magid                                 33,085        $       661,700
    545 Ridge Road
    Highland Park, IL  60035

Frances S. Shubert                              28,805        $       576,100
    511 Lynn Terrace
    Waukegan, IL  60085

Grandville Road Property, Inc.                   7,201        $       144,020
    c/o Ms. Frances S. Shubert
    511 Lynn Terrace
    Waukegan, IL  60085

Sky Harbor Associates                           62,149        $     1,242,980
    c/o Howard I. Bernstein
    6541 North Kilbourn
    Lincolnwood, IL  60646

Jeffrey A. Patterson                           110,000        $     2,200,000
    c/o Prime Group Realty Trust
    77 West Wacker Drive
    Suite 3900
    Chicago, IL  60601

Primestone Investment Partners, L.P.         7,944,893                 **/
    c/o The Prime Group, Inc.
    77 West Wacker Drive
    Suite 3900
    Chicago, IL  60601
    Attn:  Paul A. Roehri

Prime Group VI, L.P.                           304,097        $     6,050,500
    c/o The Prime Group, Inc.
    77 West Wacker Drive
    Suite 3900
    Chicago, IL  60601
    Attn:  Michael W. Reshcke
           Robert J. Rudnik

H Group LLC                                    108,348        $     1,800,000
    c/o Heitman Financial Ltd.
    180 N. LaSalle
    Suite 3600
    Chicago, IL  60601
    Attn:  Norman Perlmutter

Ray R. Grinvalds                                 5,216        $       104,320
    217 Deer Valley Drive
    Barrington, IL  60010

Warren H. John, as Trustee of the
 Warren H. John                                 37,259        $       745,180
Trust dated December 18, 1998
    1730 N. Clark Street
    Chicago, IL  60614

- --------------------
**/  This amount shall be inserted by the Managing General Partner.
</TABLE>

                                       -5-
<PAGE>
<TABLE>
                               EXHIBIT A - CONT'D

               Partners, Number of Units and Capital Contributions
<CAPTION>
                                          Number of              Capital
Limited Partners (Cont'd)                Common Units          Contribution
- ----------------------------------     -----------------     -----------------
<S>                                    <C>                   <C>
Prime Group Realty Trust                     2,000,000              **/
    77 West Wacker Drive                 Convertible
    Suite 3900                           Preferred
    Chicago, IL  60601                   Units
    Attn:  Richard S. Curto
           James F. Hoffman

Prime Group Realty Trust                     4,000,000              **/
    77 West Wacker Drive                 Series B
    Suite 3900                           Preferred
    Chicago, IL  60601                   Units
    Attn:  Richard S. Curto
           James F. Hoffman

- --------------------
**/  This amount shall be inserted by the Managing General Partner.
</TABLE>

                                       -6-

<TABLE>
                                                                    Exhibit 12.1
                  Prime Group Realty Trust and The Predecessor
             Statements Regarding Computation of Ratios of Earnings
           to Combined Fixed Charges and Preferred Share Distributions
                             (Dollars in Thousands)
<CAPTION>
                                                      Prime Group Realty Trust - Historical
                               ------------------------------------------------------------------------------------
                                                                                                       Period
                                                                                                        from
                                  Three months ended           Six months ended           Year       November 17,
                                        June 30,                   June 30,               ended        through
                               --------------------------   ------------------------   December 31,  December 31,
                                   1999          1998          1999          1998          1998         1997
                               ------------  ------------  ------------  ------------  ------------  ------------
<S>                            <C>           <C>           <C>           <C>           <C>           <C>
Earnings:
 Income before preferred
  share distributions and
  minority interests per
  the consolidated financial
  statements................   $     14,916  $      7,215  $     22,984  $     12,406  $     30,866  $      1,427
 Interest expense...........         11,545         8,061        21,923        14,476        30,901         1,680
 Amortization of debt
  issuance costs............            619           358         1,093           639         1,230           140
                               ============  ============  ============  ============  ============  ============
Earnings                       $     27,080  $     15,634  $     46,000  $     27,521  $     62,997  $      3,247
                               ============  ============  ============  ============  ============  ============
Fixed charges:
 Interest expense...........   $     11,545  $      8,061  $     21,923  $     14,476  $     30,901  $      1,680
  Capitalization of
   interest expense.........          1,607           384         2,994           464         2,498            --
  Amortization of debt
   issuance costs...........            619           358         1,093           639         1,230           140
  Preferred share
   distributions............          3,030         1,341         6,030         2,041         7,971           345
                               ============  ============  ============  ============  ============  ============
Total fixed charges.........   $     16,801  $     10,144  $     32,040  $     17,620  $     42,600  $      2,165
                               ============  ============  ============  ============  ============  ============
Ratio of earnings to
 combined fixed charges
 and preferred share
 distributions..............           1.61          1.54          1.44          1.56          1.48          1.50
                               ============  ============  ============  ============  ============  ============
Excess of earnings to
 combined fixed charges
 and preferred share
 distributions..............   $     10,279  $      5,490  $     13,960  $      9,901  $     20,397  $      1,082
                               ============  ============  ============  ============  ============  ============
Funds from operations:
 Funds from operations......   $     14,077  $     11,489  $     27,286  $     21,258  $     46,762  $      3,619
 Interest expense...........         11,545         8,061        21,923        14,476        30,901         1,680
 Amortization of debt
  issuance costs............            619           358         1,093           639         1,230           140
 Preferred share
  distributions.............          3,030         1,341         6,030         2,041         7,971           345
                               ============  ============  ============  ============  ============  ============
Adjusted funds from
 operations.................   $     29,271  $     21,249  $     56,332  $     38,414  $     86,864  $      5,784
                               ============  ============  ============  ============  ============  ============
Fixed charges:
 Interest expense...........   $     11,545  $      8,061  $     21,923  $     14,476  $     30,901  $      1,680
 Capitalization of
  interest expense..........          1,607           384         2,994           464         2,498            --
 Amortization of debt
  issuance costs............            619           358         1,093           639         1,230           140
 Preferred share
  distributions.............          3,030         1,341         6,030         2,041         7,971           345
                               ============  ============  ============  ============  ============  ============

Total fixed charges.........   $     16,801  $     10,144  $     32,040  $     17,620  $     42,600  $      2,165
                               ============  ============  ============  ============  ============  ============
Ratio of funds from
 operations to combined
 fixed charges and
 preferred share
 distributions..............           1.74          2.09          1.76          2.18          2.04          2.67
                               ============  ============  ============  ============  ============  ============
Excess of funds from
 operations to combined
 fixed charges and
 preferred share
 distributions..............   $     12,470  $     11,105  $     24,292  $     20,794  $     44,264  $      3,619
                               ============  ============  ============  ============  ============  ============

                                      -1-
</TABLE>
<PAGE>
<TABLE>
                  Prime Group Realty Trust and The Predecessor
             Statements Regarding Computation of Ratios of Earnings
           to Combined Fixed Charges and Preferred Share Distributions
                             (Dollars in Thousands)
<CAPTION>
                                            Predecessor - Historical
                               ------------------------------------------------
                                Period from
                                January 1,
                               1999 through          Year ended December 31,
                               November 16,  ----------------------------------------
                                   1997          1996          1995          1994
                               ------------  ------------  ------------  ------------
<S>                            <C>           <C>           <C>           <C>
Earnings:
 Loss before preferred
  share distributions
  and minority interests
  per the combined
  financial statements......   $    (29,050) $    (31,417) $    (29,576) $    (22,062)
 Interest expense...........         34,417        37,217        36,234        33,387
 Amortization of debt
  issuance costs............            630           594         1,148           714
                               ============  ============  ============  ============
Earnings                       $      5,997  $      6,394  $      7,806  $     12,039
                               ============  ============  ============  ============

Fixed charges:
 Interest expense...........   $     34,417  $     37,217  $     36,234  $     33,387
 Capitalization of
  interest expense..........             --            --            --            --
 Amortization of debt
  issuance costs............            630           594         1,148           714
 Preferred share
  distributions.............             --            --            --            --
                               ============  ============  ============  ============
Total fixed charges            $     35,047  $     37,811  $     37,382  $     34,101
                               ============  ============  ============  ============

Ratio of earnings to
 combined fixed charges
 and preferred share
 distributions..............             --           --             --            --
                               ============  =========== ==============  ============

Deficit of earnings to
 combined fixed charges
 and preferred share
 distributions..............   $    (29,050) $    (31,417) $    (29,576) $    (22,062)
                               ============  ============  ============  ============

Funds from operations:
 Funds from operations......   $    (14,461) $    (17,367) $    (12,733) $    (12,930)
 Interest expense...........         34,417        37,217        36,234        33,387
 Amortization of debt
  issuance costs............            630           594         1,148           714
 Preferred share
  distributions.............             --            --            --            --
                               ============  ============  ============  ============
Adjusted funds from
 operations.................   $     20,586  $     20,444  $     24,649  $     21,171
                               ============  ============  ============  ============

Fixed charges:
 Interest expense...........   $     34,417  $     37,217  $     36,234  $     33,387
 Capitalization of
  interest expense..........             --            --            --            --
 Amortization of debt
  issuance costs............            630           594         1,148           714
 Preferred share
  distributions.............             --            --            --            --
                               ============  ============  ============  ============
Total fixed charges.........   $     35,047  $     37,811  $     37,382  $     34,101
                               ============  ============  ============  ============

Ratio of funds from
 operations to combined
 fixed charges and preferred
 share distributions........             --            --            --            --
                               ============  ============  ============  ============
Deficit of funds from
 operations to combined
 fixed charges and preferred
 share distributions........   $    (14,461) $    (17,367) $    (12,733) $    (12,930)
                               ============  ============  ============  ============

                                      -2-
</TABLE>

<TABLE> <S> <C>

<ARTICLE>                          5
<MULTIPLIER>                       1,000

<S>                                         <C>
<PERIOD-TYPE>                               YEAR
<FISCAL-YEAR-END>                           DEC-31-1999
<PERIOD-START>                              JAN-01-1999
<PERIOD-END>                                JUN-30-1999
<CASH>                                                 17,858
<SECURITIES>                                                0
<RECEIVABLES>                                         130,068
<ALLOWANCES>                                                0
<INVENTORY>                                           111,736     <F1>
<CURRENT-ASSETS>                                            0
<PP&E>                                              1,135,438
<DEPRECIATION>                                       (38,918)
<TOTAL-ASSETS>                                      1,356,182
<CURRENT-LIABILITIES>                                 235,811     <F2>
<BONDS>                                               810,188
                                       0
                                                40
<COMMON>                                                  151
<OTHER-SE>                                            309,992
<TOTAL-LIABILITY-AND-EQUITY>                        1,356,182
<SALES>                                                     0
<TOTAL-REVENUES>                                      106,348
<CGS>                                                       0
<TOTAL-COSTS>                                               0
<OTHER-EXPENSES>                                       68,358     <F3>
<LOSS-PROVISION>                                            0
<INTEREST-EXPENSE>                                     21,923
<INCOME-PRETAX>                                        16,067
<INCOME-TAX>                                                0
<INCOME-CONTINUING>                                         0
<DISCONTINUED>                                              0
<EXTRAORDINARY>                                             0
<CHANGES>                                                   0
<NET-INCOME>                                           16,067
<EPS-BASIC>                                            0.66
<EPS-DILUTED>                                            0.66
<FN>
<F1>Amount  includes  restricted  cash escrows  ($32,354),  net  deferred  costs
     ($35,056), and other assets ($44,326).

<F2>Amount includes accrued interest payable ($3,378), accrued real estate taxes
     ($41,214), accounts payable and accrued expenses ($25,906), liabilities for
     leases assumed  ($3,841),  dividends  payable  ($8,104),  other liabilities
     ($3,750) and minority interests of ($149,618).

<F3>Amount includes property operations ($21,247),  real estate taxes ($19,149),
     depreciation and amortization  ($16,638),  loss on land development  option
     ($600), general and administrative expenses ($3,807) and minority interests
     allocation ($6,917).
</FN>


</TABLE>


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