PS BUSINESS PARKS INC/CA
10-Q, 2000-05-12
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 March 31, 2000

                                       or

[ ]  Transition Report Pursuant to Section 13 or 15(d) of the Securities
     Exchange Act of 1934

For the transition period from _______________ to _______________

Commission File Number 1-10709


                             PS BUSINESS PARKS, INC.
                             -----------------------
             (Exact name of registrant as specified in its charter)


          California                                        95-4300881
          ----------                                        ----------
  (State or Other Jurisdiction                           (I.R.S. Employer
       of Incorporation)                              Identification Number)


               701 Western Avenue, Glendale, California 91201-2397
               ---------------------------------------------------
               (Address of principal executive offices) (Zip Code)


       Registrant's telephone number, including area code: (818) 244-8080
                                                           --------------

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
                                        ---       ---

Number of shares outstanding of each of the issuer's classes of common stock, as
of May 11, 2000:

Common Stock, $0.01 par value, 23,418,478 shares outstanding

<PAGE>

                             PS BUSINESS PARKS, INC.

                                      INDEX

                                                                            Page
                                                                            ----
PART I.  FINANCIAL INFORMATION

Item 1.  Financial Statements

         Condensed Consolidated Balance Sheets as of March 31, 2000
         and December 31, 1999.........................................        2

         Condensed Consolidated Statements of Income for the Three
         Months Ended March 31, 2000 and 1999...........................       3

         Condensed Consolidated Statement of Shareholders' Equity for
         the Three Months Ended March 31, 2000..........................       4

         Condensed Consolidated Statements of Cash Flows for the Three
         Months Ended March 31, 2000 and 1999...........................   5 - 6

         Notes to Condensed Consolidated Financial Statements...........  7 - 15


Item 2.  Management's Discussion and Analysis of Financial Condition
         and Results of Operations...................................... 16 - 22

Item 3.  Quantitative and Qualitative Disclosures about Market Risk.....      22


PART II. OTHER INFORMATION

Item 6.  Exhibits & Reports on Form 8-K.................................      23
<PAGE>

                             PS BUSINESS PARKS, INC.
                      CONDENSED CONSOLIDATED BALANCE SHEETS

<TABLE>
<CAPTION>
                                                                             March 31,              December 31,
                                                                               2000                     1999
                                                                          ----------------        ----------------
                                                                            (unaudited)
                                                       ASSETS
                                                       ------
<S>                                                                       <C>                     <C>
Cash and cash equivalents...............................                  $    41,572,000         $    74,220,000

Real estate facilities, at cost:
     Land...............................................                      201,813,000             194,140,000
     Buildings and equipment............................                      657,643,000             636,261,000
                                                                          ----------------        ----------------
                                                                              859,456,000             830,401,000
     Accumulated depreciation...........................                      (59,277,000)            (50,976,000)
                                                                          ----------------        ----------------
                                                                              800,179,000             779,425,000
Properties held for disposition, net....................                       14,235,000              14,235,000
Construction in progress................................                       13,793,000               8,616,000
                                                                          ----------------        ----------------
                                                                              828,207,000             802,276,000

Receivables.............................................                          203,000                 771,000
Deferred rent receivables...............................                        6,063,000               5,493,000
Intangible assets, net..................................                        1,207,000               1,282,000
Other assets............................................                       20,176,000              19,699,000
                                                                          ----------------        ----------------
              Total assets..............................                  $   897,428,000         $   903,741,000
                                                                          ================        ================


                                        LIABILITIES AND SHAREHOLDERS' EQUITY
                                        ------------------------------------

Accrued and other liabilities..............................               $    22,468,000         $    21,195,000
Mortgage notes payable.....................................                    31,552,000              37,066,000
                                                                          ----------------        ----------------
         Total liabilities.................................                    54,020,000              58,261,000

Minority interest:
         Preferred units...................................                   132,750,000             132,750,000
         Common units......................................                   156,047,000             157,199,000

Shareholders' equity:
   Preferred stock, $0.01 par value, 50,000,000 shares
     authorized, 2,200 shares issued and outstanding at
     March 31, 2000 and December 31, 1999..................                    55,000,000              55,000,000
   Common stock, $0.01 par value, 100,000,000 shares
     authorized, 23,432,078 shares issued and outstanding
     at March 31, 2000 (23,645,461 shares issued and
     outstanding at December 31, 1999).....................                       234,000                 236,000
   Paid-in capital.........................................                   474,377,000             478,889,000
   Cumulative net income...................................                    84,552,000              73,809,000
   Cumulative distributions................................                   (59,552,000)            (52,403,000)
                                                                          ----------------        ----------------
         Total shareholders' equity........................                   554,611,000             555,531,000
                                                                          ----------------        ----------------
              Total liabilities and shareholders' equity...               $   897,428,000         $   903,741,000
                                                                          ================        ================
</TABLE>
                            See accompanying notes.
                                       2
<PAGE>

                             PS BUSINESS PARKS, INC.
                   CONDENSED CONSOLIDATED STATEMENTS OF INCOME
                                   (Unaudited)

<TABLE>
<CAPTION>
                                                                                    For the Three Months
                                                                                      Ended March 31,
                                                                          ------------------------------------------
                                                                                 2000                  1999
                                                                          --------------------  --------------------
<S>                                                                       <C>                   <C>
Revenues:
   Rental income....................................................      $      34,053,000     $      29,117,000
   Facility management fees from affiliates.........................                123,000               114,000
   Interest and other income........................................              1,688,000                20,000
                                                                          --------------------  --------------------
                                                                                 35,864,000            29,251,000
                                                                          --------------------  --------------------

Expenses:
  Cost of operations................................................              9,552,000             8,376,000
  Cost of facility management.......................................                 25,000                23,000
  Depreciation and amortization.....................................              8,376,000             6,733,000
  General and administrative........................................                883,000               802,000
  Interest expense..................................................                374,000               909,000
                                                                          --------------------  --------------------
                                                                                 19,210,000            16,843,000
                                                                          --------------------  --------------------

Income before minority interest.....................................             16,654,000            12,408,000

  Minority interest in income - preferred units.....................             (2,920,000)                    -
  Minority interest in income - common units........................             (2,991,000)           (2,966,000)
                                                                          --------------------  --------------------
Net income..........................................................      $      10,743,000     $       9,442,000
                                                                          ====================  ====================

Net income allocation:
  Allocable to preferred shareholders...............................      $       1,272,000     $               -
  Allocable to common shareholders..................................              9,471,000             9,442,000
                                                                          --------------------  --------------------
                                                                          $      10,743,000     $       9,442,000
                                                                          ====================  ====================
Net income per common share:
  Basic.............................................................      $         0.40        $         0.40
                                                                          ====================  ====================
  Diluted...........................................................      $         0.40        $         0.40
                                                                          ====================  ====================

Weighted average common shares outstanding:
  Basic.............................................................             23,592,000            23,637,000
                                                                          ====================  ====================
  Diluted...........................................................             23,643,000            23,705,000
                                                                          ====================  ====================
</TABLE>
                            See accompanying notes.
                                       3
<PAGE>


                             PS BUSINESS PARKS, INC.
            CONDENSED CONSOLIDATED STATEMENT OF SHAREHOLDERS' EQUITY
                    For the three months ended March 31, 2000
                                   (Unaudited)
<TABLE>
<CAPTION>

                                   Preferred Stock        Common Stock
                                 --------------------  --------------------   Paid-in      Cumulative    Cumulative    Shareholders'
                                  Shares    Amount       Shares     Amount    Capital      Net Income   Distributions     Equity
                                 -------- -----------  ----------  --------  ------------  -----------  -------------- -------------
<S>                              <C>      <C>          <C>         <C>       <C>           <C>          <C>            <C>
Balances at December 31, 1999...  2,200   $55,000,000  23,645,461  $236,000  $478,889,000  $73,809,000  $(52,403,000)  $555,531,000

 Conversion of common OP units..      -             -     107,517     1,000     2,189,000            -             -      2,190,000

 Repurchase of common stock.....      -             -    (320,900)   (3,000)   (6,771,000)           -             -     (6,774,000)

 Net income.....................      -             -           -         -             -   10,743,000             -     10,743,000

 Distributions paid:
    Preferred stock.............      -             -           -         -             -            -    (1,272,000)    (1,272,000)
    Common stock................      -             -           -         -             -            -    (5,877,000)    (5,877,000)

 Adjustment to reflect  minority
   interest    to     underlying
   ownership interest...........      -             -           -         -        70,000            -             -         70,000
                                 -------- -----------  ----------  --------  ------------  -----------  -------------- -------------

Balances at March 31, 2000......  2,200   $55,000,000  23,432,078  $234,000  $474,377,000  $84,552,000  $(59,552,000)  $554,611,000
                                 ======== ===========  ==========  ========  ============  ===========  ============== =============
</TABLE>

                            See accompanying notes.
                                       4
<PAGE>


                             PS BUSINESS PARKS, INC.
                 CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
                                   (Unaudited)


<TABLE>
<CAPTION>

                                                                                    For the Three Months
                                                                                      Ended March 31,
                                                                          -----------------------------------------
                                                                                2000                   1999
                                                                          -------------------   -------------------
<S>                                                                       <C>                   <C>
Cash flows from operating activities:
   Net income.......................................................        $    10,743,000       $     9,442,000
   Adjustments to  reconcile  net  income  to  net cash  provided by
     operating activities:
       Depreciation and amortization expense........................              8,376,000             6,733,000
       Minority interest in income..................................              5,911,000             2,966,000
       (Increase) decrease in receivables and other assets..........                 21,000              (832,000)
       Increase (decrease) in accrued and other liabilities.........              1,251,000            (1,900,000)
                                                                          -------------------   -------------------
            Total adjustments.......................................             15,559,000             6,967,000
                                                                          -------------------   -------------------

         Net cash provided by operating activities..................             26,302,000            16,409,000
                                                                          -------------------   -------------------

Cash flows from investing activities:
       Other investments............................................               (500,000)                    -
       Acquisition of real estate facilities........................            (25,386,000)          (22,269,000)
       Capital improvements to real estate facilities...............             (3,669,000)           (2,204,000)
       Construction in progress.....................................             (5,177,000)           (3,877,000)
                                                                          -------------------   -------------------

         Net cash used in investing activities......................            (34,732,000)          (28,350,000)
                                                                          -------------------   -------------------

Cash flows from financing activities:
       Borrowings from an affiliate.................................                      -            41,200,000
       Repayment of borrowings from an affiliate....................                      -           (13,500,000)
       Loans to an affiliate........................................            (77,000,000)                    -
       Repayment of loans to an affiliate...........................             77,000,000                     -
       Borrowings from line of credit...............................                      -            14,000,000
       Repayment of borrowings from line of credit..................                      -           (26,500,000)
       Principal payments on mortgage notes payable.................             (5,514,000)             (305,000)
       Net proceeds from the issuance of common stock...............                      -                40,000
       Repurchase of common stock...................................             (6,774,000)                    -
       Distributions paid to preferred shareholders.................             (1,272,000)                    -
       Distributions paid to minority interests - preferred units...             (2,920,000)                    -
       Distributions paid to common shareholders....................             (5,877,000)           (5,909,000)
       Distributions paid to minority interests - common units......             (1,861,000)           (1,854,000)
                                                                          -------------------   -------------------

         Net cash (used in) provided by financing activities........            (24,218,000)            7,172,000
                                                                          -------------------   -------------------

Net decrease in cash and cash equivalents...........................            (32,648,000)           (4,769,000)

Cash and cash equivalents at the beginning of the period............             74,220,000             6,068,000
                                                                          -------------------   -------------------

Cash and cash equivalents at the end of the period..................        $    41,572,000       $     1,299,000
                                                                          ===================   ===================
</TABLE>

                            See accompanying notes.
                                       5
<PAGE>


                             PS BUSINESS PARKS, INC.
                 CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
                                   (Unaudited)

<TABLE>
<CAPTION>
                                                                                    For the Three Months
                                                                                      Ended March 31,
                                                                          -----------------------------------------
                                                                                2000                   1999
                                                                          -------------------   -------------------
<S>                                                                       <C>                   <C>
Supplemental schedule of non cash investing and financing
   activities:

Acquisitions  of  real  estate facilities in  exchange for  minority
   interests and mortgage notes payable:
       Real estate facilities.......................................        $             -       $    (2,520,000)
       Minority interest - common units.............................                      -               333,000
       Mortgage notes payable.......................................                      -             2,187,000

Conversion of common OP units into shares of common stock:
       Minority interest - common units.............................             (2,190,000)                    -
       Common stock.................................................                  1,000                     -
       Paid-in capital..............................................              2,189,000                     -

Adjustment  to  reflect miniority interest to  underlying  ownership
   interest:
       Minority interest - common units.............................                (70,000)              395,000
       Paid-in capital..............................................                 70,000              (395,000)


</TABLE>

                            See accompanying notes.
                                       6
<PAGE>


                             PS BUSINESS PARKS, INC.
              NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                                 March 31, 2000


1.   Organization and description of business

     PS Business Parks, Inc. ("PSB") was incorporated in the state of California
     in 1990.  As of March 31, 2000,  PSB owned an  approximate  73% general and
     limited  partnership  interest in PS Business  Parks,  L.P. (the "Operating
     Partnership"  or "OP").  PSB, as the sole general  partner of the Operating
     Partnership, has full, exclusive and complete responsibility and discretion
     in  managing  and  controlling  the  Operating  Partnership.  PSB  and  the
     Operating Partnership are collectively referred to as the "Company."

     The  Company is a  fully-integrated,  self-advised  and  self-managed  real
     estate investment trust ("REIT") that acquires, develops, owns and operates
     commercial properties containing commercial and industrial rental space. As
     of March 31, 2000, the Company owned and operated 126 commercial properties
     (approximately 12.5 million net rentable square feet) located in 11 states.
     In addition, the Company managed, on behalf of Public Storage, Inc. ("PSI")
     and  affiliated  entities,  37  commercial  properties  (approximately  1.0
     million net rentable square feet).

2.   Summary of significant accounting policies

     Basis of presentation

     The accompanying unaudited condensed consolidated financial statements have
     been prepared in accordance with accounting  principles  generally accepted
     in  the  United  States  for  interim   financial   information   and  with
     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
     accounting  principles generally accepted in the United States for complete
     financial  statements.   The  preparation  of  the  condensed  consolidated
     financial  statements in conformity  with accounting  principles  generally
     accepted in the United States  requires  management  to make  estimates and
     assumptions that affect the amounts reported in the condensed  consolidated
     financial  statements and accompanying  notes.  Actual results could differ
     from estimates.  In the opinion of management,  all adjustments (consisting
     of normal recurring  accruals)  necessary for a fair presentation have been
     included.  Operating  results for the three months ended March 31, 2000 are
     not necessarily indicative of the results that may be expected for the year
     ended December 31, 2000. For further information, refer to the consolidated
     financial statements and footnotes thereto included in the Company's annual
     report on Form 10-K for the year ended December 31, 1999.

     The condensed consolidated financial statements include the accounts of PSB
     and the Operating  Partnership.  All significant  intercompany balances and
     transaction  have been eliminated in the condensed  consolidated  financial
     statements.

     Cash and cash equivalents

     The  Company  considers  all highly  liquid  investments  with an  original
     maturity  of  three  months  or less at the  date  of  purchase  to be cash
     equivalents.  The carrying amount of cash and cash equivalents approximates
     fair value.

     Real estate facilities

     Real  estate  facilities  are  recorded  at  cost.  Costs  related  to  the
     renovation or improvement of the properties are  capitalized.  Expenditures
     for  repair  and  maintenance  are  expensed  as  incurred.  Buildings  and
     equipment are  depreciated on the  straight-line  method over the estimated
     useful lives, which are generally 30 and 5 years, respectively.

     Interest cost and property taxes incurred during the period of construction
     of real estate  facilities are  capitalized.  Construction  in progress and
     developed  projects  include  $1,655,000  and  $1,257,000 of interest costs
     capitalized  at March 31, 2000 and  December 31,  1999,  respectively.  The
     Company  capitalized  $398,000 and  $185,000  during the three months ended
     March 31, 2000 and 1999, respectively.

                                       7
<PAGE>

                             PS BUSINESS PARKS, INC.
              NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                                 March 31, 2000

     Intangible assets

     Intangible assets consist of property  management  contracts for properties
     managed,  but not owned,  by the Company.  The intangible  assets are being
     amortized  over  seven  years.  Intangible  assets  are net of  accumulated
     amortization  of $949,000  and  $874,000 at March 31, 2000 and December 31,
     1999, respectively.

     Evaluation of asset impairment

     The  Company  evaluates  its  assets  used in  operations,  by  identifying
     indicators  of  impairment  and by  comparing  the  sum  of  the  estimated
     undiscounted  future  cash  flows for each  asset to the  asset's  carrying
     amount.  When  indicators  of  impairment  are  present  and the sum of the
     undiscounted  future  cash  flows is less than the  carrying  value of such
     asset, an impairment  loss is recorded equal to the difference  between the
     asset's  current  carrying  value and its value  based on  discounting  its
     estimated  future cash flows.  At March 31,  2000,  no such  indicators  of
     impairment have been identified.

     Assets held for disposition are reported at the lower of carrying amount or
     fair value less selling costs.

     Borrowings from and loans to affiliate

     The  Company  borrowed  an  aggregate  of $41.2  million  from PSI and paid
     $266,000 in interest  expense during the three months ended March 31, 1999.
     The notes bore interest at 5.5% (per annum) and were repaid as of April 30,
     1999.

     The Company loaned an aggregate of $77 million to PSI and received $153,000
     in interest  income  during the period of January 5, 2000 through  March 8,
     2000.  The notes bore  interest  at 5.9% (per  annum) and were repaid as of
     March 20, 2000.

     Revenue and expense recognition

     All leases are classified as operating leases.  Rental income is recognized
     on a straight-line basis over the terms of the leases.  Reimbursements from
     tenants for real estate taxes and other recoverable  operating expenses are
     recognized as revenue in the period the applicable costs are incurred.

     Costs incurred in connection with leasing  (primarily  tenant  improvements
     and leasing  commissions)  are  capitalized  and  amortized  over the lease
     period.

     Property management fees are recognized in the period earned.

     General and administrative expense

     General and administrative expense includes executive compensation,  office
     expense,  professional  fees,  state  income  taxes,  cost  of  acquisition
     personnel and other such administrative items. Such amounts include amounts
     incurred by PSI on behalf of the Company,  which were subsequently  charged
     to the Company in accordance  with the allocation  methodology  pursuant to
     the cost  allocation  and  administrative  service  agreement  between  the
     Company and PSI.

     Acquisition costs

     Internal acquisition costs are expensed as incurred.

     Income taxes

     During 1997, the Company  qualified and intends to continue to qualify as a
     REIT,  as defined in Section 856 of the Internal  Revenue  Code. As a REIT,
     the  Company is not  subject to  federal  income tax to the extent  that it
     distributes  at least 95% of its  taxable  income to its  shareholders.  In
     addition,  REIT's are subject to a number of organizational  and operating
     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) based on its  taxable  income  using
     corporate income tax rates. Even if the Company qualifies for taxation as a

                                       8
<PAGE>

                             PS BUSINESS PARKS, INC.
              NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                                 March 31, 2000


     REIT,  the Company  may be subject to certain  state and local taxes on its
     income  and  property  and  to  federal  income  and  excise  taxes  on its
     undistributed  taxable income. The Company believes it met all organization
     and  operating  requirements  to maintain  its REIT status  during 1999 and
     intends to continue to meet such  requirements  for 2000.  Accordingly,  no
     provision  for  income  taxes has been made in the  accompanying  financial
     statements.

     Net income per common share

     Per share  amounts are computed  using the weighted  average  common shares
     outstanding.  "Diluted" weighted average common shares outstanding  include
     the  dilutive  effect of stock  options  under the treasury  stock  method.
     "Basic"  weighted average common shares  outstanding  excludes such effect.
     Earnings per share has been calculated as follows:

<TABLE>
<CAPTION>


                                                                                       For the Three Months
                                                                                         Ended March 31,
                                                                          -------------------------------------------
                                                                                2000                    1999
                                                                          -------------------   ---------------------
<S>                                                                       <C>                   <C>
Net income allocable to common shareholders...........................    $       9,471,000       $       9,442,000
                                                                          ===================   =====================

Weighted average common shares outstanding:

   Basic weighted average common shares outstanding...................           23,592,000              23,637,000
   Net  effect of  dilutive  stock  options - based on treasury  stock
     method using average market price................................               51,000                  68,000
                                                                          -------------------   ---------------------
   Diluted weighted average common shares outstanding.................           23,643,000              23,705,000
                                                                          ===================  ======================


Basic earnings per common share.......................................    $            0.40      $             0.40
                                                                          ===================   =====================
Diluted earnings per common share.....................................    $            0.40      $             0.40
                                                                          ===================   =====================
</TABLE>

                                        9
<PAGE>

                            PS BUSINESS PARKS, INC.
              NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                                 March 31, 2000


3.   Real estate facilities

     The activity in real estate facilities for the three months ended March 31,
     2000 is as follows:

<TABLE>
<CAPTION>
                                                                                  Accumulated
                                                Land            Buildings         Depreciation         Total
                                           ----------------  ----------------   -----------------  ----------------
     <S>                                   <C>               <C>                <C>                <C>
     Balances at December 31, 1999......   $   194,140,000   $   636,261,000    $   (50,976,000)   $   779,425,000
     Property acquisitions..............         7,673,000        17,713,000                  -         25,386,000
     Capital improvements...............                 -         3,669,000                  -          3,669,000
     Depreciation expense...............                 -                 -         (8,301,000)        (8,301,000)
                                           ----------------  ----------------   -----------------  ----------------

     Balances at March 31, 2000.........   $   201,813,000   $   657,643,000    $   (59,277,000)   $   800,179,000
                                           ================  ================   =================  ================
</TABLE>

     Certain  properties  have been  identified  as not  meeting  the  Company's
     ongoing investment strategy and have been designated as properties held for
     disposition  at December 31, 1999.  These  properties  are currently  being
     marketed and the Company  anticipates a gain on the sale during this fiscal
     year. The following  summarizes the condensed  results of operations of the
     properties  held  for  disposition  which  are  included  in the  condensed
     consolidated statements of income:


                                               For the Three Ended March 31,
                                         ---------------------------------------
                                               2000                    1999
                                         -----------------      ----------------
   Rental income......................        $1,015,000            $1,076,000
   Cost of operations.................           434,000               458,000
   Depreciation.......................            89,000                89,000
                                        -----------------      ----------------
   Net operating income..............         $  492,000            $  529,000
                                        =================      ================

4.   Leasing activity


     The Company  leases space in its real estate  facilities  to tenants  under
     non-cancelable  leases  generally  ranging  from one to ten  years.  Future
     minimum rental revenues excluding recovery of expenses as of March 31, 2000
     under these leases are as follows:

                    2000 (April - December).............         $   81,527,000
                    2001................................             87,171,000
                    2002................................             62,601,000
                    2003................................             42,182,000
                    2004................................             27,415,000
                    Thereafter..........................             46,125,000
                                                                ----------------
                                                                 $  347,021,000
                                                                ================

     In addition to minimum  rental  payments,  tenants pay  reimbursements  for
     their pro rata  share of  specified  operating  expenses,  which  amount to
     $4,054,000  and  $3,441,000  for the three  months ended March 31, 2000 and
     1999, respectively. These amounts are included as rental income and cost of
     operations in the accompanying condensed consolidated statements of income.


5.   Revolving line of credit

     In August  1999,  the Company  extended its  unsecured  line of credit (the
     "Credit  Facility")  with  Wells  Fargo  Bank.  The Credit  Facility  has a
     borrowing  limit of $100 million and an expiration  date of August 6, 2002.

                                       10
<PAGE>

                            PS BUSINESS PARKS, INC.
              NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                                 March 31, 2000

     The expiration date may be extended by one year on each  anniversary of the
     Credit Facility.  Interest on outstanding borrowings is payable monthly. At
     the option of the Company, the rate of interest charged is equal to (i) the
     prime rate or (ii) a rate  ranging from the London  Interbank  Offered Rate
     ("LIBOR") plus 0.75% to 1.35% depending on the Company's credit ratings and
     coverage ratios, as defined (currently LIBOR plus 1.00%). In addition,  the
     Company is required to pay an annual  commitment fee of 0.25%.  The Company
     had no outstanding balance and $100 million available on its line of credit
     at March 31, 2000 and December 31, 1999.

     The  Credit  Facility  requires  the  Company  to  meet  certain  covenants
     including (i) maintain a balance sheet  leverage ratio (as defined) of less
     than 0.50 to 1.00, (ii) maintain  interest and fixed charge coverage ratios
     (as  defined)  of not less than 2.25 to 1.0 and 1.75 to 1.0,  respectively,
     (iii) maintain a minimum total  shareholders'  equity (as defined) and (iv)
     limit  distributions  to 95% of funds from  operations.  In  addition,  the
     Company is  limited in its  ability  to incur  additional  borrowings  (the
     Company is required to maintain  unencumbered assets with an aggregate book
     value equal to or greater than two times the Company's  unsecured  recourse
     debt) or sell assets.  The Company was in compliance  with the covenants of
     the Credit Facility at March 31, 2000.

6.   Mortgage notes payable

     Mortgage notes consist of the following:

<TABLE>
<CAPTION>
                                                                                 March 31,         December 31,
                                                                                   2000                1999
                                                                             -----------------  -----------------
     <S>                                                                     <C>                <C>
     7.125% mortgage note, principal and interest payable  monthly,  due
          May 2006......................................................      $    8,707,000     $    8,751,000
     8.190% mortgage note,  principal and interest payable monthly,  due
          March 2007....................................................           6,621,000          6,666,000
     7.290% mortgage note, principal and interest payable  monthly,  due
          February 2009.................................................           6,348,000          6,372,000
     8.125% mortgage note...............................................                   -          5,327,000
     7.280% mortgage note, principal and interest payable  monthly,  due
          February 2003.................................................           4,275,000          4,304,000
     8.000% mortgage note, principal and  interest payable  monthly, due
          April 2003....................................................           2,087,000          2,108,000
     8.500% mortgage note, principal and interest payable  monthly,  due
          July 2007.....................................................           1,886,000          1,898,000
     8.000% mortgage note, principal and interest payable  monthly,  due
          April 2003....................................................           1,628,000          1,640,000
                                                                             -----------------  -----------------
                                                                                 $31,552,000        $37,066,000
                                                                             =================  =================
</TABLE>
                                       11
<PAGE>


                            PS BUSINESS PARKS, INC.
              NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                                 March 31, 2000



     At March 31,  2000,  approximate  principal  maturities  of mortgage  notes
     payable are as follows:

                    2000 (April - December).............         $      580,000
                    2001................................                829,000
                    2002................................                895,000
                    2003................................              7,871,000
                    2004................................                696,000
                    Thereafter..........................             20,681,000
                                                                ----------------
                                                                 $   31,552,000
                                                                ================

7.   Minority interests


     Common units

     The Company presents the accounts of PSB and the Operating Partnership on a
     consolidated basis. Ownership interests in the Operating Partnership, other
     than PSB's interest,  are classified as minority  interest in the condensed
     consolidated financial statements.  Minority interest in income consists of
     the  minority  interests'  share of the  condensed  consolidated  operating
     results.

     Beginning  one year from the date of  admission  as a limited  partner  and
     subject to certain limitations  described below, each limited partner other
     than  PSB has the  right  to  require  the  redemption  of its  partnership
     interest.

     A limited  partner that  exercises its  redemption  right will receive cash
     from the Operating  Partnership  in an amount equal to the market value (as
     defined  in  the  Operating  Partnership   Agreement)  of  the  partnership
     interests  redeemed.  In lieu of the  Operating  Partnership  redeeming the
     partner  for  cash,  PSB,  as  general  partner,  has the right to elect to
     acquire the partnership interest directly from a limited partner exercising
     its redemption right, in exchange for cash in the amount specified above or
     by  issuance  of one share of PSB  common  stock  for each unit of  limited
     partnership interest redeemed.

     A limited  partner  cannot  exercise  its  redemption  right if delivery of
     shares  of PSB  common  stock  would be  prohibited  under  the  applicable
     articles of incorporation,  if the general partner believes that there is a
     risk  that  delivery  of shares of common  stock  would  cause the  general
     partner to no longer  qualify as a REIT,  would  cause a  violation  of the
     applicable securities laws, or would result in the Operating Partnership no
     longer being treated as a partnership for federal income tax purposes.

     At  March  31,  2000,  there  were  7,335,839  OP units  owned by  minority
     interests  (7,305,355 were owned by PSI and affiliated  entities and 30,484
     were owned by  unaffiliated  third parties).  On a fully  converted  basis,
     assuming  all  7,335,839  minority  interest OP units were  converted  into
     shares of common  stock of PSB at March 31, 2000,  the  minority  interests
     would own approximately 23.8% of the common shares outstanding.  At the end
     of each reporting  period,  PSB determines the amount of equity (book value
     of net assets) which is allocable to the minority  interest  based upon the
     ownership interest and an adjustment is made to the minority interest, with
     a  corresponding  adjustment  to paid-in  capital,  to reflect the minority
     interests' equity in the Company.

     Preferred units

     On April 23, 1999, the Operating  Partnership completed a private placement
     of 510,000  preferred units with a preferred  distribution  rate of 8 7/8%.
     The net proceeds from the placement of preferred  units were  approximately
     $12.5 million and were used to repay borrowings from an affiliate.

                                       12
<PAGE>


                            PS BUSINESS PARKS, INC.
              NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                                 March 31, 2000

     On  September  3,  1999,  the  Operating  Partnership  completed  a private
     placement of 3,200,000  preferred units with a preferred  distribution rate
     of 8 3/4%.  The net proceeds  from the  placement  of preferred  units were
     approximately  $78  million and part of the  proceeds  was used to prepay a
     mortgage note payable of approximately $8.5 million.

     On September 7 and 23, 1999, the Operating  Partnership  completed  private
     placements of 1,200,000 and 400,000 preferred units,  respectively,  with a
     preferred  distribution rate of 8 7/8%. The net proceeds from the placement
     of preferred units were approximately $39.2 million.

     The Operating Partnership has the right to redeem the preferred units on or
     after the fifth  anniversary  of the issuance date at the original  capital
     contribution  plus the  cumulative  priority  return,  as  defined,  to the
     redemption  date to the extent not  previously  distributed.  The preferred
     units are  exchangeable  for Cumulative  Redeemable  Preferred Stock of the
     respective  series  of PS  Business  Parks,  Inc.  on or  after  the  tenth
     anniversary  of the  date  of  issuance  at  the  option  of the  Operating
     Partnership  or  majority  of the  holders  of  the  preferred  units.  The
     Preferred Stock will have the same  distribution  rate and par value as the
     respective  units and will have equivalent terms to those described in Note
     9.

8.   Property management contracts

     The Operating Partnership manages industrial,  office and retail facilities
     for PSI and entities affiliated with PSI. These facilities,  all located in
     the United  States,  operate  under the "Public  Storage"  or "PS  Business
     Parks" name.

     The property management  contracts provide for compensation of five percent
     of the gross revenue of the facilities  managed.  Under the  supervision of
     the property owners, the Operating Partnership coordinates rental policies,
     rent  collections,  marketing  activities,  the purchase of  equipment  and
     supplies,  maintenance  activities,  and the  selection  and  engagement of
     vendors, suppliers and independent contractors.  In addition, the Operating
     Partnership  assists  and  advises  the  property  owners  in  establishing
     policies for the hire,  discharge  and  supervision  of  employees  for the
     operation  of  these  facilities,  including  property  managers,  leasing,
     billing and maintenance personnel.

     The property management contract with PSI is for a seven year term with the
     term being  extended one year each  anniversary.  The  property  management
     contracts with  affiliates of PSI are cancelable by either party upon sixty
     days notice.

9.   Shareholders' equity

     Preferred stock

     On April 30, 1999,  the Company  issued  2,200,000  depositary  shares each
     representing  1/1,000  of a share  of 9 1/4%  Cumulative  Preferred  Stock,
     Series A. Net proceeds from the public  perpetual  preferred stock offering
     were approximately  $53.1 million and were used to repay borrowings from an
     affiliate and a mortgage  note payable of  approximately  $11 million.  The
     remaining proceeds were used for investment in real estate.

     Holders of the  Company's  preferred  stock will not be entitled to vote on
     most matters, except under certain conditions. In the event of a cumulative
     arrearage  equal to six quarterly  dividends,  the holders of the preferred
     stock will have the right to elect two  additional  members to serve on the
     Company's  Board of Directors  until all events of default have been cured.
     At March 31, 2000, there were no dividends in arrears.

     Except under certain conditions relating to the Company's  qualification as
     a REIT, the preferred  stock is not redeemable  prior to April 30, 2004. On
     or after April 30, 2004,  the preferred  stock will be  redeemable,  at the
     option of the Company,  in whole or in part, at $25 per  depositary  share,
     plus any accrued and unpaid dividends.

                                       13
<PAGE>

                            PS BUSINESS PARKS, INC.
              NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                                 March 31, 2000


     The  Company  paid   $1,272,000   ($0.578125  per   depositary   share)  in
     distributions  to its  preferred  shareholders  for the three  months ended
     March 31,  2000.  No  preferred  distributions  were paid  during the three
     months ended March 31, 1999.

     Common stock

     On March 2, 2000, the Board of Directors  authorized  the  repurchase  from
     time to time of up to 1,000,000 shares of the Company's common stock on the
     open market or in privately negotiated transactions.  As of March 31, 2000,
     the Company repurchased 320,900 shares of common stock at an aggregate cost
     of approximately $6,774,000.

     On March 31,  2000,  a holder of common OP units  exercised  its option and
     converted its 107,517 common OP units into an equal number of shares of PSB
     common  stock.  The  conversion  resulted in an  increase in  shareholders'
     equity and a corresponding  decrease in minority  interest of approximately
     $2,190,000  representing  the  book  value  of the OP  units at the time of
     conversion.

     The Company paid $5,877,000  ($0.25 per common share) and $5,909,000 ($0.25
     per common share) in distributions to its common shareholders for the three
     months   ended  March  31,  2000  and  1999,   respectively.   Pursuant  to
     restrictions on the Credit  Facility,  distributions  may not exceed 95% of
     funds from operations, as defined.

     Equity stock

     In addition to common and  preferred  stock,  the Company is  authorized to
     issue  100,000,000  shares of Equity Stock.  The Articles of  Incorporation
     provide  that the  Equity  Stock may be issued  from time to time in one or
     more series and gives the Board of  Directors  broad  authority  to fix the
     dividend and distribution rights,  conversion and voting rights, redemption
     provisions and liquidation rights of each series of Equity Stock.

10.  Recent accounting pronouncements

     In June 1998, the Financial Accounting Standards Board issued SFAS No. 133,
     "Accounting for Derivative  Instruments and Hedging  Activities,"  which is
     required  to be  adopted  in years  beginning  after  June 15,  2000.  This
     statement  provides  a  comprehensive  and  consistent   standard  for  the
     recognition  and  measurement of derivatives  and hedging  activities.  The
     Company  is  studying  this  statement  to  determine  its  effect  on  the
     consolidated financial statements and will adopt this statement in the year
     ending December 31, 2001.

11.  Commitments and contingencies

     The Company is subject to the risks inherent in the ownership and operation
     of commercial real estate. These include,  among others, the risks normally
     associated with changes in the general economic climate, trends in the real
     estate industry,  creditworthiness of tenants, competition,  changes in tax
     laws,  interest rate levels,  the  availability  of financing and potential
     liability under environmental and other laws.

     Substantially  all of  the  properties  have  been  subjected  to  Phase  I
     environmental  reviews.  Such reviews have not revealed,  nor is management
     aware of, any  probable or  reasonably  possible  environmental  costs that
     management  believes  would  be  material  to  the  consolidated  financial
     statements except as discussed below.

     The Company acquired a property in Beaverton,  Oregon ("Creekside Corporate
     Park") in May 1998.  A property  adjacent to  Creekside  Corporate  Park is
     currently     the     subject     of     an     environmental      remedial
     investigation/feasibility  study that is being conducted by the current and
     past  owners of the  property,  pursuant  to an order  issued by the Oregon
     Department of Environmental  Quality ("ODEQ").  As part of that study, ODEQ
     ordered the property owners to sample soil and groundwater on the Company's

                                       14
<PAGE>

                            PS BUSINESS PARKS, INC.
              NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                                 March 31, 2000



     property to determine the nature and extent of contamination resulting from
     past  industrial  operations  at the  property  subject to the  study.  The
     Company,  which is not a party of the Order on Consent,  executed  separate
     Access  Agreements with the property owners to allow access to its property
     to conduct the required  sampling and testing.  The sampling and testing is
     ongoing,   and  preliminary   results  from  one  area  indicate  that  the
     contamination from the property subject to the study may have migrated onto
     a portion of Creekside Corporate Park owned by the Company.

     There  is no  evidence  that  any  past  or  current  use of the  Creekside
     Corporate Park property contributed in any way to the contamination that is
     the subject of the current investigation.  Nevertheless, upon completion of
     the study, it is likely that removal or remedial  measures will be required
     to address any  contamination  detected  during the current  investigation,
     including  any  contamination  on or under  the  Creekside  Corporate  Park
     property.  Because  of the  preliminary  nature of the  investigation,  the
     Company  cannot  predict  the  outcome  of the  investigation,  nor  can it
     estimate the costs of any  remediation  or removal  activities  that may be
     required.

     The Company believes that it bears no  responsibility  or liability for the
     contamination.  In the event the Company is ultimately  deemed  responsible
     for any costs relating to this matter,  the Company believes that the party
     from whom the property was purchased will be  responsible  for any expenses
     or   liabilities   that  the   Company  may  incur  as  a  result  of  this
     contamination.

     On  November  3,  1999,  the  Company  filed an action  in the Los  Angeles
     Superior  Court  seeking  damages  in  excess  of $1  million,  as  well as
     equitable  relief.  The  complaint  alleges  that Mr.  Howard and  entities
     controlled  by  him  engaged  in  unfair  trade  practices,  including  (1)
     negotiating kickbacks,  secret rebates and/or unearned discounts from third
     party suppliers for "providing" Company business to those suppliers and (2)
     disrupting the Company's relationship with various suppliers.

     On or about  February 14, 2000,  Mr. Howard and entities  controlled by him
     filed a  cross-complaint  against the Company,  Public  Storage,  Inc., and
     several  other   cross-defendants   alleging,   among  other  things,   (1)
     interference  with Mr.  Howard's  contractual  relations with various third
     party suppliers, (2) violation of Title VII of the Civil Rights Act and (3)
     abuse of process. None of the cross-complainants assigned any dollar amount
     in the  cross-complaint  to the claims.  The Company  intends to vigorously
     contest the claims in the cross-complaint.

     The Company  currently is neither subject to any other material  litigation
     nor,  to  management's  knowledge,  is any  material  litigation  currently
     threatened   against  the  Company  other  than  routine   litigation   and
     administrative  proceedings  arising in the  ordinary  course of  business.
     Based on consultation  with counsel,  management  believes that these items
     will not have a  material  adverse  impact  on the  Company's  consolidated
     financial position or results of operations.

                                       15
<PAGE>

Management's  Discussion  and Analysis of  Financial  Condition  and  Results of
- --------------------------------------------------------------------------------
Operations
- ----------

     Forward-Looking  Statements:  When used  within  this  document,  the words
"expects,"   "believes,"   anticipates,"   "should,"  "estimates,"  and  similar
expressions  are intended to identify  "forward-looking  statements"  within the
meaning of that term in Section 27A of the  Securities  Exchange Act of 1933, as
amended,  and in Section 21F of the Securities Exchange Act of 1934, as amended.
Such forward-looking  statements involve known and unknown risks,  uncertainties
and other factors.  Actual results could differ  materially from those set forth
in the forward-looking  statements as a result of various factors.  Such factors
include,  but are not limited to a change in economic  conditions in the various
markets  served by the Company's  operations  which would  adversely  affect the
level of demand for rental of  commercial  space and the cost  structure  of the
Company,  general real estate  investment risks,  competition,  risks associated
with  acquisition and development  activities and debt financing,  environmental
matters,  general uninsured losses and seismic  activity.  Readers are cautioned
not to place undue  reliance on these  forward-looking  statements,  which speak
only as of the date hereof.  The Company  undertakes  no  obligation to publicly
release  the result of any  revisions  to these  forward-looking  statements  to
reflect  events  or  circumstances  after  the date  hereof  or to  reflect  the
occurrence of unanticipated events.

     Overview: During 2000 and 1999, the Company focused on increasing cash flow
from its  existing  core  portfolio  of  properties,  expanded  its  presence in
existing   markets  through   strategic   acquisitions   and   developments  and
strengthened  its balance  sheet  primarily  through the  issuance of common and
preferred  stock/units at reasonable  prices.  By maintaining low leverage,  the
Company believes that future growth is facilitated.

     During the first quarter of 2000, the Company  acquired 178,000 square feet
in Northern California for approximately $23.3 million. In addition, the Company
acquired  21 acres of land in  Texas  for  approximately  $3.7  million  for the
development of two 100,000 square feet flex buildings.

     During 1999, the Company added approximately 1.3 million square feet to its
portfolio  at an  aggregate  cost of  approximately  $103  million.  The Company
acquired  483,000 square feet in Texas for  approximately  $32 million,  405,000
square feet in Northern  Virginia/Maryland market for approximately $41 million,
211,000  square feet in Northern  California for  approximately  $17 million and
200,000 square feet in Arizona for approximately $13 million.

     Results of Operations: Net income for the three months ended March 31, 2000
was  $10,743,000  compared to $9,442,000 for the same period in 1999. Net income
allocable to common shareholders (net income less preferred stock dividends) for
the three months ended March 31, 2000 was $9,471,000  compared to $9,442,000 for
the same  period in 1999.  Net income per  common  share on a diluted  basis was
$0.40 for the three  months  ended  March 31,  2000 and 1999  (based on weighted
average  diluted  common  shares   outstanding  of  23,643,000  and  23,705,000,
respectively).


                                       16
<PAGE>

     The  Company's  property  operations  account  for  almost  all of the  net
operating  income  earned by the  Company.  The  following  table  presents  the
pre-depreciation operating results of the properties:

<TABLE>
<CAPTION>
                                                                    Three Months Ended March 31,
                                                                 ----------------------------------
                                                                      2000             1999              Change
                                                                 ----------------  ----------------   -------------
<S>                                                              <C>               <C>                <C>
Rental income:

"Same  Park"  facilities (110 facilities,  10.8  million  net
     rentable square feet)...................................        $29,332,000       $27,700,000           5.9%
Facilities   acquired  subsequent   to   December   1998  (16
     facilities, 1.7 million net rentable square feet).......          4,721,000         1,417,000         233.2%
                                                                 ----------------  ----------------   -------------
Total rental income..........................................        $34,053,000       $29,117,000          17.0%
                                                                 ================  ================   =============

Cost of operations (excluding depreciation):
"Same Park" facilities.......................................         $8,172,000        $7,918,000           3.2%
Facilities acquired subsequent to December 1998..............          1,380,000           458,000         201.3%
                                                                 ----------------  ----------------   -------------
Total cost of operations.....................................         $9,552,000         8,376,000          14.0%
                                                                 ================  ================   =============

Net operating income (rental income less cost of operations):
"Same Park" facilities.......................................        $21,160,000       $19,782,000           7.0%
Facilities acquired subsequent to December 1998..............          3,341,000           959,000         248.4%
                                                                 ----------------  ----------------   -------------
Total net operating income...................................        $24,501,000       $20,741,000          18.1%
                                                                 ================  ================   =============
</TABLE>

     Rental  income and rental  income less cost of  operations or net operating
income ("NOI") prior to  depreciation  are summarized for the three months ended
March 31, 2000 by major geographic regions below:

<TABLE>
<CAPTION>
                                   Square         Percent         Rental         Percent                        Percent
   Region                          Footage        of Total        Income         of Total       NOI             of Total
- -------------------------       --------------   -----------  --------------  ------------  --------------   -------------
<S>                             <C>              <C>          <C>             <C>           <C>              <C>
Southern California......         3,093,000        24.7%        $8,793,000        25.8%       $6,758,000          27.6%
Northern California......         1,495,000        11.9%         3,662,000        10.8%        2,710,000          11.1%
Southern Texas...........         1,031,000         8.2%         2,594,000         7.6%        1,538,000           6.3%
Northern Texas...........         2,003,000        16.0%         4,451,000        13.1%        2,966,000          12.1%
Virginia.................         1,612,000        12.9%         5,361,000        15.7%        3,929,000          16.0%
Maryland.................         1,104,000         8.8%         3,352,000         9.8%        2,332,000           9.5%
Oregon...................         1,169,000         9.3%         3,723,000        10.9%        2,968,000          12.1%
Other...................          1,032,000         8.2%         2,117,000         6.3%        1,300,000           5.3%
                                --------------   -----------  --------------  ------------  --------------   -------------
                                 12,539,000       100.0%       $34,053,000       100.0%      $24,501,000         100.0%
                                ==============   ===========  ==============  ============  ==============   =============
</TABLE>

     Supplemental Property Data and Trends: In order to evaluate the performance
of  the  Company's  overall   portfolio,   management   analyzes  the  operating
performance of a consistent  group of 110 properties  (10.8 million net rentable
square  feet).  These 110  properties  (herein  referred  to as the "Same  Park"
facilities)  have been owned and  operated  by the  Company  for the  comparable
periods  and will  provide  a more  comprehensive  analysis  of the  portfolio's
operations. The "Same Park" facilities represent approximately 86% of the square
footage of the Company's portfolio at March 31, 2000.

                                       17
<PAGE>

     The following table summarizes the  pre-depreciation  historical  operating
results of the "Same Park"  facilities  excluding the effects of accounting  for
rental revenues on a straight-line basis.

                     "Same Park" Facilities (110 Properties)
                     ---------------------------------------

                                         Three Months Ended
                                              March 31,
                                   -------------------------------
                                       2000             1999          Change
                                   --------------  ---------------  ------------
  Rental income (1)...............  $28,789,000      $26,986,000        6.7%
  Cost of operations..............    8,172,000        7,918,000        3.2%
                                   --------------  ---------------  ------------
  Net operating income............  $20,617,000      $19,068,000        8.1%
                                   ==============  ===============  ============

  Gross margin (2)................        71.6%            70.7%        0.9%


  Weighted average for period:
  ---------------------------

  Occupancy.......................        96.7%            96.4%        0.3%
  Annualized   realized  rent  per
   square feet (3)................        11.05           $10.39        6.4%

(1) Rental income does not include the effect of straight-line accounting.

(2) Gross margin is computed by dividing property net operating income by rental
    income.

(3) Realized  rent  per square  foot  represents  the actual revenues earned per
    occupied square foot.

     The following tables  summarize the "Same Park" operating  results by major
geographic region for the three months ended March 31, 2000 and 1999:

<TABLE>
<CAPTION>

                             Revenues        Revenues                         NOI            NOI          Increase
         Region                2000            1999         Increase         2000            1999        (Decrease)
- ------------------------   -------------   -------------   -----------   --------------   ------------  ------------
<S>                        <C>             <C>             <C>           <C>              <C>           <C>
Southern California.....     $8,631,000      $7,839,000       10.1%         $6,514,000     $5,663,000      15.0%
Northern California.....      2,929,000       2,658,000       10.2%          2,186,000      1,960,000      11.5%
Southern Texas..........      2,257,000       2,153,000        4.8%          1,296,000      1,375,000      (5.7%)
Northern Texas..........      3,646,000       3,462,000        5.3%          2,383,000      2,237,000       6.5%
Virginia................      3,809,000       3,601,000        5.8%          2,721,000      2,494,000       9.1%
Maryland................      2,380,000       2,343,000        1.6%          1,722,000      1,721,000       0.1%
Arizona.................      3,654,000       3,540,000        3.2%          2,921,000      2,768,000       5.5%
Other...................      1,483,000       1,390,000        6.7%            874,000        850,000       2.8%
                           -------------   -------------   -----------   --------------   ------------  ------------
                            $28,789,000     $26,986,000        6.7%        $20,617,000    $19,068,000       8.1%
                           ==============  =============   ===========   ==============   ============  ============
</TABLE>


     The increases noted above reflect the performance of the Company's existing
markets. All major markets reflected increases in rental rates due to average to
strong  market  conditions.  The Company  experienced  growth in rental rates in
Southern and Northern  California due to a strong economic climate.  In Southern
Texas,  increases in operating  expenses in excess of revenue increases resulted
in a decrease in NOI.  The  increases  are  primarily  related to  property  tax
expenses.

     Facility Management Operations:  The Company's facility management accounts
for a small  portion of the Company's  net  operating  income.  During the three

                                       18
<PAGE>

months ended March 31, 2000, $98,000 in net operating income was recognized from
facility management  operations compared to $91,000 for the same period in 1999.
Facility  management  fees have increased due to the increase in rental rates of
the properties managed by the Company.

     Interest and Other Income:  Interest and other income  reflect  earnings on
cash balances and other  investments.  Interest and other income was  $1,688,000
for the three  months  ended  March 31,  2000  compared  to $20,000 for the same
period in 1999. The increase is attributable to increased  average cash balances
and  higher  interest  rates in  addition  to  dividends  earned  on  marketable
securities. Average cash balances for the three months ended March 31, 2000 were
approximately  $81.2  million  compared  to $1.6  million for the same period in
1999.

     Cost of Operations: Cost of operations for the three months ended March 31,
2000 was  $9,552,000  compared to  $8,376,000  for the same period in 1999.  The
increase  is due  primarily  to the  growth in the total  square  footage of the
Company's portfolio of properties.  Cost of operations as a percentage of rental
income  decreased from 28.8% to 28.1% as a result of economies of scale achieved
through the  acquisition of properties in existing  markets.  Cost of operations
for the three months ended March 31, 2000 consists  primarily of property  taxes
($3,120,000),  property  maintenance  ($1,788,000),  utilities  ($1,612,000) and
direct payroll ($1,469,000).

     Depreciation  and  Amortization  Expense:   Depreciation  and  amortization
expense for the three  months  ended March 31, 2000 was  $8,376,000  compared to
$6,733,000 for the same period in 1999.  The increase is due to the  acquisition
and development of real estate facilities during 1999.

     General and Administrative Expense:  General and administrative expense was
$883,000 for the three months ended March 31, 2000  compared to $802,000 for the
same period in 1999.  The increase is due  primarily to the  increased  size and
activities  of the  Company.  Included in general and  administrative  costs are
acquisition costs and abandoned transaction costs.  Acquisition expenses for the
three  months  ended  March  31,  2000  and  1999  were  $131,000  and  $90,000,
respectively.  Abandoned  transaction costs were $7,000 and $2,000 for the three
months ended March 31, 2000 and 1999, respectively.

     Interest Expense:  Interest expense was $374,000 for the three months ended
March 31, 2000 compared to $909,000 for the same period in 1999. The decrease is
attributable  to decreased  average debt  balances  during the period.  Interest
expense of $398,000  and  $185,000  was  capitalized  as part of building  costs
associated with properties under development during the three months ended March
31, 2000 and 1999, respectively.

     Minority  Interest  in Income:  Minority  interest in income  reflects  the
income allocable to equity  interests in the Operating  Partnership that are not
owned by the  Company.  Minority  interest in income for the three  months ended
March 31, 2000 was $5,911,000 ($2,920,000 allocated to preferred unitholders and
$2,991,000 allocated to common unitholders)  compared to $2,966,000 allocated to
common  unitholders  for the same  period  in 1999.  The  increase  in  minority
interest  in income is due  primarily  to the  issuance of  preferred  operating
partnership units in April and September of 1999.

Liquidity and Capital Resources
- -------------------------------

     Net cash provided by operating  activities for the three months ended March
31, 2000 and 1999 was  $26,302,000  and  $16,409,000,  respectively.  Management
believes that its internally generated net cash provided by operating activities
will  continue to be  sufficient  to enable it to meet its  operating  expenses,
capital  improvements,  debt service requirements and maintain the current level
of distribution to shareholders.

     The  following  table  summarizes  the  Company's  ability to make  capital
improvements  to maintain  its  facilities  through the use of cash  provided by
operating activities. The remaining cash flow is available to the Company to pay
distributions  to  shareholders,  make  principal  payments  on debt and to make
investments in real estate.

                                       19
<PAGE>

<TABLE>
<CAPTION>

                                                                            Three Months Ended March 31,
                                                                           -------------------------------
                                                                                2000            1999
                                                                           --------------   --------------
<S>                                                                        <C>              <C>
Net income..........................................................       $ 10,743,000      $  9,442,000
Depreciation and amortization.......................................          8,376,000         6,733,000
Change in working capital...........................................          1,272,000        (2,732,000)
Minority interest in income.........................................          5,911,000         2,966,000
                                                                           --------------   --------------
Net cash provided by operating activities...........................         26,302,000        16,409,000


Maintenance capital expenditures....................................           (532,000)         (209,000)
Tenant improvements.................................................         (1,030,000)       (1,234,000)
Capitalized lease commissions.......................................           (665,000)         (517,000)
                                                                           --------------   --------------
Funds available for distributions to shareholders, minority interests,
  acquisitions and other corporate purposes.........................         24,075,000        14,449,000


Cash distributions to shareholders and minority interests...........        (11,930,000)       (7,763,000)
                                                                           --------------   --------------

Excess funds available for principal payments on debt, investments in
  real estate and other corporate purposes..........................       $ 12,145,000      $  6,686,000
                                                                           ==============   ==============

</TABLE>

     The  Company's  capital  structure  is  characterized  by a  low  level  of
leverage.  As of March 31, 2000, the Company had seven fixed rate mortgage notes
payable totaling  $31,552,000 which represented 3.6% of its total capitalization
(based on book value,  including  minority  interests  and debt).  The  weighted
average interest rate for the mortgage notes is 7.59%.

     In August  1999,  the Company  extended its  unsecured  line of credit (the
"Credit  Facility")  with Wells Fargo Bank. The Credit  Facility has a borrowing
limit of $100 million and an expiration  date of August 6, 2002.  The expiration
date may be extended  by one year on each  anniversary  of the Credit  Facility.
Interest on  outstanding  borrowings  is payable  monthly.  At the option of the
Company,  the rate of interest  charged is equal to (i) the prime rate or (ii) a
rate ranging from the London  Interbank  Offered  Rate  ("LIBOR")  plus 0.75% to
1.35% depending on the Company's credit ratings and coverage ratios,  as defined
(currently  LIBOR plus 1.00%).  In  addition,  the Company is required to pay an
annual commitment fee of 0.25%.

     The Company expects to fund its growth  strategies with permanent  capital,
including  issuances  of common and  preferred  stock and  internally  generated
retained cash flows. In addition, the Company may sell properties that no longer
meet  its  investment  criteria.  The  Company  may  finance  acquisitions  on a
temporary basis with borrowings from its line of credit.  The Company intends to
repay amounts  borrowed under the Credit Facility from  undistributed  cash flow
or, as market conditions  permit and as determined to be advantageous,  from the
public or private  placement of preferred and common stock or formation of joint
ventures.  The Company targets a leverage ratio of 40% and Funds from Operations
("FFO") to combined  fixed charges and preferred  distributions  ratio of 3.0 to
1.0. As of March 31, 2000 and for the three  months  then  ended,  the  leverage
ratio was 26% and the FFO to fixed charges and preferred  distributions coverage
ratio was 5.0 to 1.0.

     In April 1999,  the Company  completed a private  placement of preferred OP
units  and a  public  offering  of  depositary  shares  representing  fractional
interest in perpetual  preferred stock resulting in net proceeds  totaling $65.6
million.  The net proceeds from the  placement of preferred OP units,  completed
April 23, 1999 were approximately  $12.5 million.  The preferred OP units have a
preferred  distribution rate of 8 7/8% on a stated value of $12.75 million.  The
preferred OP units have equivalent terms to those of perpetual  preferred stock.
Net proceeds from the public perpetual  preferred stock offering completed April
30, 1999 were $53.1 million.  The preferred  stock has a dividend rate of 9 1/4%
on a stated value of $55 million.  Proceeds from the issuances  were used to pay
off borrowings from an affiliate and a portion was used to repay a mortgage note
payable of  approximately  $11 million.  The  remaining  proceeds  were used for
investment in real estate.

     On  September  3,  1999,  the  Operating  Partnership  completed  a private
placement of 3,200,000  preferred units with a preferred  distribution rate of 8
3/4%. The net proceeds from the placement of preferred units were  approximately

                                       20
<PAGE>


$78  million.  A portion  of the  proceeds  was used to prepay a  mortgage  note
payable  of  approximately  $8.5  million.  On  September  7 and 23,  1999,  the
Operating  Partnership  completed  private  placements  of 1,200,000 and 400,000
preferred units, respectively, with a preferred distribution rate of 8 7/8%. The
net proceeds  from the  placement of preferred  units were  approximately  $39.2
million.

     Funds from Operations: FFO is defined as net income, computed in accordance
with generally accepted accounting  principles  ("GAAP"),  before  depreciation,
amortization,  minority  interest in income,  straight line rent adjustments and
extraordinary  or  non-recurring  items.  FFO is  presented  because the Company
considers  FFO to be a useful  measure of the  operating  performance  of a REIT
which,  together with net income and cash flows provides  investors with a basis
to evaluate the operating  and cash flow  performances  of a REIT.  FFO does not
represent net income or cash flows from  operations as defined by GAAP. FFO does
not take into  consideration  scheduled  principal  payments on debt and capital
improvements.  Accordingly, FFO is not necessarily a substitute for cash flow or
net income as a measure of liquidity or operating performance or ability to make
acquisitions  and capital  improvements or ability to pay  distributions or debt
principal  payments.  Also, FFO as computed and disclosed by the Company may not
be comparable to FFO computed and disclosed by other REITs.

     FFO for the Company is computed as follows:

<TABLE>
<CAPTION>
                                                                             Three Months Ended March 31,
                                                                         -----------------------------------
                                                                               2000                1999
                                                                         -----------------  ----------------
<S>                                                                      <C>                <C>
Net income allocable to common shareholders........................       $   9,471,000     $   9,442,000
  Depreciation and amortization....................................           8,376,000         6,733,000
  Minority interest in income - common units.......................           2,991,000         2,966,000
  Less effects of straight-line rents..............................            (630,000)         (751,000)
                                                                         -----------------  ----------------
Consolidated  FFO  allocable  to  common shareholders  and minority
interests..........................................................          20,208,000        18,390,000
FFO allocated to common minority interest - common units...........          (4,810,000)       (4,404,000)
                                                                         -----------------  ----------------
FFO allocated to common shareholders...............................       $  15,398,000     $  13,986,000
                                                                         =================  ================
</TABLE>

     Capital  Expenditures:  During  the  first  quarter  of 2000,  the  Company
incurred $2.2 million in maintenance capital  expenditures,  tenant improvements
and capitalized  lease  commissions.  On a recurring  annual basis,  the Company
expects  $0.90 to $1.20 per square foot in recurring  capital  expenditures  (an
aggregate  of $11 - $15 million  based on square  footage at March 31, 2000) and
expects to make $1 million in renovations  on a property in Southern  California
during the remainder of 2000.

     Distributions: The Company has elected and intends to qualify as a REIT for
federal  income tax  purposes.  As a REIT,  the Company  must meet,  among other
tests,  sources of income, share ownership and certain asset tests. In addition,
the  Company  is not  taxed  on that  portion  of its  taxable  income  which is
distributed to its shareholders provided that at least 95% of its taxable income
is so distributed to its shareholders prior to filing of its tax return.

     The Board of  Directors  declared a quarterly  dividend of $0.25 per common
share on May 9, 2000. In addition,  the Board of Directors  declared a quarterly
dividend of  $0.578125  per share on the  depositary  shares  each  representing
1/1000 of a share of 9 1/4% Cumulative  Preferred Stock, Series A. Distributions
are  payable  on June 30,  2000 to  shareholders  of  record  as of the close of
business on June 15, 2000.

                                       21
<PAGE>


Impact of Year 2000 ("Y2K")
- ---------------------------

     The "Y2K Issue"  arises  because many  computerized  systems use two digits
rather than four to identify a year. Any of the Company's  computer  programs or
hardware with the Y2K issue that have date  sensitive  applications  or embedded
chips  could  recognize  a date using "00" as the year 1900 rather than the year
2000. The same issue has been faced by the Company's outside vendors,  including
those vendors in the banking and payroll  processing areas. Any failure in these
areas could result in disruptions of operations.

     As  a  result  of  the  Company's  assessment  and  remediation  activities
conducted in recent years, the Company experienced no significant disruptions in
its operations, and believes that its information systems responded successfully
to the Y2K date change.

     At this  time,  the  Company  is not aware of any  material  problems  that
resulted from the Y2K date change at any of its outside vendors, including those
vendors in the banking and payroll processing areas.

     The Company will continue to monitor its  information  systems and those of
its  outside  vendors  throughout  the year 2000 to ensure  that any  latent Y2K
Issues that may arise are addressed promptly.

     There can be no assurance that the Company has identified all potential Y2K
Issues either within the Company's  information  systems, at its outside vendors
or at external agents. In addition, the impact of any unresolved or unidentified
Y2K Issues on  governmental  entities and utility  providers  and the  resulting
impact upon the Company,  as well as disruptions in the general economy,  may be
material but cannot be reasonable determined or quantified.

ITEM 3.  Quantitative and Qualitative Disclosures about Market Risk

     To limit the  Company's  exposure to market risk,  the Company  principally
finances its operations and growth with permanent  equity capital  consisting of
either common or preferred  stock.  At March 31, 2000,  the Company's  debt as a
percentage of shareholders' equity (based on book values) was 5.7%.

     The Company's  market risk  sensitive  instruments  include  mortgage notes
payable which totaled  $31,552,000 at March 31, 2000.  Substantially  all of the
Company's mortgage notes payable bear interest at fixed rates. See Note 6 of the
Notes to Consolidated Financial Statements for terms, valuations and approximate
principal  maturities of the mortgage notes payable as of March 31, 2000.  Based
on borrowing  rates currently  available to the Company,  the carrying amount of
debt approximates fair value.

                                       22
<PAGE>



PART II.     OTHER INFORMATION

Item 6.      EXHIBITS AND REPORTS ON FORM 8-K

(a)      Exhibits

     2.1    Amended and  Restated  Agreement  and Plan of  Reorganization  among
            Registrant,  American  Office Park  Properties,  Inc.  ("AOPP")  and
            Public Storage,  Inc.  ("PSI") dated as of December 17, 1997.  Filed
            with   Registrant's   Registration   Statement  No.   333-45405  and
            incorporated herein by reference.

     3.1    Restated   Articles  of   Incorporation.   Filed  with  Registrant's
            Registration  Statement  No.  333-78627 and  incorporated  herein by
            reference.

     3.2    Certificate  of  Determination  of  Preferences  of 8 3/4%  Series C
            Cumulative  Redeemable  Preferred Stock of PS Business  Parks,  Inc.
            Filed  with  Registrant's  Quarterly  Report  on Form  10-Q  for the
            quarterly period ended September 30, 1999 and incorporated herein by
            reference.

     3.3    Certificate  of  Determination  of  Preferences  of 8 7/8%  Series X
            Cumulative  Redeemable  Preferred Stock of PS Business  Parks,  Inc.
            Filed  with  Registrant's  Quarterly  Report  on Form  10-Q  for the
            quarterly period ended September 30, 1999 and incorporated herein by
            reference.

     3.4    Amendment to Certificate of  Determination  of Preferences of 8 7/8%
            Series X Cumulative Redeemable Preferred Stock of PS Business Parks,
            Inc. Filed with  Registrant's  Quarterly Report on Form 10-Q for the
            quarterly period ended September 30, 1999 and incorporated herein by
            reference.

     3.5    Restated Bylaws.  Filed with Registrant's Current Report on Form 8-K
            dated March 17, 1998 and incorporated herein by reference.

     10.1   Amended  Management  Agreement  between Storage  Equities,  Inc. and
            Public  Storage  Commercial  Properties  Group,  Inc.  dated  as  of
            February 21, 1995.  Filed with PSI's Annual  Report on Form 10-K for
            the  year  ended  December  31,  1994  and  incorporated  herein  by
            reference.

     10.2   Registrant's  1997  Stock  Option  and  Incentive  Plan.  Filed with
            Registrant's  Registration  Statement No. 333-48313 and incorporated
            herein by reference.

     10.3   Agreement of Limited  Partnership of PS Business  Parks,  L.P. Filed
            with  Registrant's  Quarterly  Report on Form 10-Q for the quarterly
            period ended June 30, 1998 and incorporated herein by reference.

     10.4   Merger and  Contribution  Agreement  dated as of  December  23, 1997
            among Acquiport Two Corporation,  Acquiport Three  Corporation,  New
            York State Common Retirement Fund,  American Office Park Properties,
            L.P., AOPP and AOPP Acquisition Corp. Three. Filed with Registrant's
            Registration  Statement  No.  333-45405 and  incorporated  herein by
            reference.

     10.5   Agreement  Among  Shareholders  and Company dated as of December 23,
            1997 among  Acquiport Two  Corporation,  AOPP,  American Office Park
            Properties,  L.P.  and PSI.  Filed  with  Registrant's  Registration
            Statement No. 333-45405 and incorporated herein by reference.

     10.6   Amendment to Agreement  Among  Shareholders  and Company dated as of
            January 21, 1998 among  Acquiport Two  Corporation,  AOPP,  American
            Office  Park  Properties,  L.P.  and PSI.  Filed  with  Registrant's
            Registration  Statement  No.  333-45405 and  incorporated  herein by
            reference.

     10.7   Non-Competition  Agreement  dated as of December 23, 1997 among PSI,
            AOPP,  American  Office Park  Properties,  L.P.  and  Acquiport  Two
            Corporation.  Filed with  Registrant's  Registration  Statement  No.
            333-45405 and incorporated herein by reference.

                                       23
<PAGE>

     10.8   Employment Agreement between AOPP and Ronald L. Havner, Jr. dated as
            of December 23, 1997. Filed with Registrant's Registration Statement
            No. 333-45405 and incorporated herein by reference.

     10.9   Employment  Agreement between  Registrant and J. Michael Lynch dated
            as of May 20, 1998. Filed with Registrant's Quarterly Report on Form
            10-Q for the quarterly  period ended June 30, 1998 and  incorporated
            herein by reference.

     10.10  Common Stock Purchase  Agreement  dated as of January 23, 1998 among
            AOPP and the Investors  signatory  thereto.  Filed with Registrant's
            Registration  Statement  No.  333-45405 and  incorporated  herein by
            reference.

     10.11  Registration  Rights  Agreement  dated as of January  30, 1998 among
            AOPP and the Investors  signatory  thereto.  Filed with Registrant's
            Registration  Statement  No.  333-45405 and  incorporated  herein by
            reference.

     10.12  Registration  Rights  Agreement  dated as of March 17, 1998  between
            Registrant and Acquiport Two  Corporation  ("Acquiport  Registration
            Rights Agreement"). Filed with Registrant's Quarterly Report on Form
            10-Q for the quarterly  period ended June 30, 1998 and  incorporated
            herein by reference.

     10.13  Letter dated May 20, 1998 relating to Acquiport  Registration Rights
            Agreement. Filed with Registrant's Quarterly Report on Form 10-Q for
            the quarterly period ended June 30, 1998 and incorporated  herein by
            reference.

     10.14  Revolving  Credit  Agreement  dated August 6, 1998 among PS Business
            Parks, L.P., Wells Fargo Bank, National  Association,  as Agent, and
            the Lenders named therein.  Filed with Registrant's Quarterly Report
            on Form  10-Q for the  quarterly  period  ended  June  30,  1998 and
            incorporated herein by reference.

     10.15  First Amendment to Revolving Credit Agreement dated as of August 19,
            1999 among PS Business  Parks,  L.P.,  Wells  Fargo  Bank,  National
            Association,  as Agent,  and the Lenders named  therein.  Filed with
            Registrant's  Quarterly Report on Form 10-Q for the quarterly period
            ended September 30, 1999 and incorporated herein by reference.

     10.16  Form of  Indemnity  Agreement.  Filed  with  Registrant's  Quarterly
            Report on Form 10-Q for the  quarterly  period  ended March 31, 1998
            and incorporated herein by reference.

     10.17  Cost  Sharing  and  Administrative  Services  Agreement  dated as of
            November  16, 1995 by and among  PSCC,  Inc.  and the owners  listed
            therein.  Filed with Registrant's  Quarterly Report on Form 10-Q for
            the quarterly period ended March 31, 1998 and incorporated herein by
            reference.

     10.18  Amendment  to Cost  Sharing and  Administrative  Services  Agreement
            dated as of January 2, 1997 by and among PSCC,  Inc.  and the owners
            listed therein.  Filed with  Registrant's  Quarterly  Report on Form
            10-Q for the quarterly  period ended March 31, 1998 and incorporated
            herein by reference.

     10.19  Accounts Payable and Payroll  Disbursement  Services Agreement dated
            as of January 2, 1997 by and between PSCC,  Inc. and American Office
            Park Properties,  L.P. Filed with  Registrant's  Quarterly Report on
            Form  10-Q  for the  quarterly  period  ended  March  31,  1998  and
            incorporated herein by reference.

     10.20  Amendment to Agreement of Limited  Partnership of PS Business Parks,
            L.P.  Relating to 8 7/8% Series B  Cumulative  Redeemable  Preferred
            Units, dated as of April 23, 1999. Filed with Registrant's Quarterly
            Report on Form 10-Q for the  quarterly  period  ended March 31, 1999
            and incorporated herein by reference.

     10.21  Amendment to Agreement of Limited  Partnership of PS Business Parks,
            L.P.  Relating to 9 1/4% Series A  Cumulative  Redeemable  Preferred
            Units, dated as of April 30, 1999. Filed with Registrant's Quarterly
            Report on Form 10-Q for the  quarterly  period  ended March 31, 1999
            and incorporated herein by reference.

                                       24
<PAGE>

     10.22  Amendment to Agreement of Limited  Partnership of PS Business Parks,
            L.P.  Relating to 8 3/4% Series C  Cumulative  Redeemable  Preferred
            Units,  dated as of  September  3,  1999.  Filed  with  Registrant's
            Quarterly  Report  on Form  10-Q  for  the  quarterly  period  ended
            September 30, 1999 and incorporated herein by reference.

     10.23  Amendment to Agreement of Limited  Partnership of PS Business Parks,
            L.P.  Relating to 8 7/8% Series X  Cumulative  Redeemable  Preferred
            Units,  dated as of  September  7,  1999.  Filed  with  Registrant's
            Quarterly  Report  on Form  10-Q  for  the  quarterly  period  ended
            September 30, 1999 and incorporated herein by reference.

     10.24  Amendment to Agreement of Limited  Partnership of PS Business Parks,
            L.P.  Relating to  Additional 8 7/8% Series X Cumulative  Redeemable
            Preferred  Units,  dated  as  of  September  23,  1999.  Filed  with
            Registrant's  Quarterly Report on Form 10-Q for the quarterly period
            ended September 30, 1999 and incorporated herein by reference.

     11     Statement re: Computation of Earnings per Share. Filed herewith.

     12     Statement  re:  Computation  of Ratio of Earnings to Fixed  Charges.
            Filed herewith.

     27     Financial Data Schedule. Filed herewith.


(b)      Reports on Form 8-K

         The Company filed a Current  Report on Form 8-K dated December 30, 1999
         (filed  January 10, 2000),  as amended by Form 8-K/A dated December 30,
         1999 (filed  March 13, 2000)  pursuant to Item 5, which filed  Combined
         Statements   of  Certain   Revenues   and  Certain   Expenses  for  the
         Monroe/Lafayette  Properties  for the nine months ended  September  30,
         1999 and for the year ended December 31, 1998,  Combined  Statements of
         Certain  Revenues and Certain  Expenses for the Kohm Properties for the
         nine months ended  September  30, 1999 and for the year ended  December
         31, 1998, Statements of Certain Revenues and Certain Operating Expenses
         for the  Northpointe  Property for the nine months ended  September 30,
         1999 and for the year ended  December 31, 1998 and Combined  Statements
         of  Certain  Revenues  and  Certain  Operating  Expenses  for  the  R&B
         Properties  for the nine months  ended  September  30, 1999 and for the
         year ended December 31, 1998.

         The  Company  filed a Current  Report  on Form 8-K dated  March 7, 2000
         (filed  March 8, 2000)  pursuant  to Item 5,  relating  to PS  Business
                                                                    ------------
         Parks, Inc. v. Larry Howard, et al.
         -----------------------------------

                                   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.

                               Dated:  May 12, 2000

                               PS BUSINESS PARKS, INC.
                               BY: /s/ Jack Corrigan
                                   -----------------
                                   Jack Corrigan
                                   Vice President and Chief Financial Officer


                                       25




                             PS BUSINESS PARKS, INC.
                                   EXHIBIT 11
                 STATEMENT RE: COMPUTATION OF EARNINGS PER SHARE


<TABLE>
<CAPTION>

                                                                                        Three Months Ended
                                                                                            March 31,
                                                                        ------------------------------------------------
Basic and Diluted Earnings Per Share:                                           2000                        1999
                                                                        -----------------------  -----------------------

<S>                                                                     <C>                      <C>
Net income allocable to common shareholders...........................    $       9,471,000       $       9,442,000
                                                                        =======================  =======================

Weighted average common shares outstanding:


   Basic weighted average common shares outstanding...................           23,592,000              23,637,000

   Net  effect of  dilutive  stock  options - based on treasury  stock
     method using average market price................................               51,000                  68,000
                                                                        -----------------------  -----------------------
   Diluted weighted average common shares outstanding.................           23,643,000              23,705,000
                                                                        =======================  =======================


Basic earnings per common share.......................................    $            0.40       $            0.40
                                                                        =======================  =======================
Diluted earnings per common share.....................................    $            0.40       $            0.40
                                                                        =======================  =======================
</TABLE>



                             PS BUSINESS PARKS, INC.
                                   EXHIBIT 12:
         STATEMENT RE: COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES

<TABLE>
<CAPTION>

                                                                                       Three Months Ended
                                                                                            March 31,
                                                                        ------------------------------------------------
                                                                                  2000                    1999
                                                                        -----------------------  -----------------------
      <S>                                                               <C>                      <C>
      Net income......................................................       $   10,743,000          $    9,442,000
      Minority interest...............................................            5,911,000               2,966,000
      Interest expense................................................              374,000                 909,000
                                                                        -----------------------  -----------------------
      Earnings available to cover fixed charges.......................       $   17,028,000          $   13,317,000
                                                                        =======================  =======================

      Fixed charges (1)...............................................              772,000               1,094,000
      Preferred distributions.........................................            4,192,000                       -
                                                                        -----------------------  -----------------------
      Combined fixed charges and preferred distributions..............       $    4,964,000          $    1,094,000
                                                                        =======================  =======================

      Ratio of earnings to fixed charges..............................                22.06                   12.17
                                                                        =======================  =======================
      Ratio of earnings to combined fixed charges and preferred
      distributions...................................................                 3.43                   12.17
                                                                        =======================  =======================

</TABLE>


<TABLE>
<CAPTION>

                                                                   Years Ended December 31,
                                       -------------------------------------------------------------------------------------
                                            1999             1998            1997             1996            1995
                                       ----------------  --------------- --------------- ---------------- ------------------
<S>                                    <C>               <C>             <C>             <C>              <C>
Net income..........................     $ 41,255,000     $ 29,400,000    $  3,836,000     $    519,000    $  1,192,000
Minority interest...................       16,049,000       11,208,000       8,566,000                -               -
Interest expense....................        3,153,000        2,361,000           1,000                -               -
                                       ----------------  --------------- --------------- ---------------- ------------------
Earnings  available  to cover  fixed
   charges..........................     $ 60,457,000     $ 42,969,000    $ 12,403,000     $    519,000    $  1,192,000
                                       ================  =============== =============== ================ ==================


Fixed charges (1)...................     $  4,142,000     $  2,629,000    $      1,000     $          -    $          -
Preferred distributions.............        7,562,000                -               -                -               -
                                       ----------------  --------------- --------------- ---------------- ------------------
Combined fixed charges and preferred
   distributions....................     $ 11,704,000     $  2,629,000    $      1,000     $          -    $          -
                                       ================  =============== =============== ================ ==================


Ratio of earnings to fixed charges..            14.60            16.34          12,403         N/A              N/A
                                       ================  =============== =============== ================ ==================

Ratio of earnings to combined fixed
   charges     and        preferred
   distributions....................             5.17            16.34          12,403         N/A              N/A
                                       ================  =============== =============== ================ ==================

</TABLE>


(1) Fixed charges include interest expense plus capitalized interest.



                             PS BUSINESS PARKS, INC.
                                   EXHIBIT 12
         STATEMENT RE: COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES

Supplemental disclosure of Ratio of Funds from Operations ("FFO") to fixed
charges:

<TABLE>
<CAPTION>

                                                                                       Three Months Ended
                                                                                            March 31,
                                                                           --------------------------------------------
                                                                                  2000                    1999
                                                                           ---------------------  ---------------------
      <S>                                                                  <C>                    <C>
      FFO.............................................................       $   20,208,000          $   18,390,000
      Interest expense................................................              374,000                 909,000
      Minority interest in income - preferred units...................            2,920,000                       -
      Preferred dividends.............................................            1,272,000                       -
                                                                           ---------------------  ---------------------
      Adjusted FFO available to cover fixed charges...................       $   24,774,000          $   19,299,000
                                                                           =====================  =====================

      Fixed charges (1)...............................................              772,000               1,094,000
      Preferred distributions.........................................            4,192,000                       -
                                                                           ---------------------  ---------------------
      Combined fixed charges and preferred distributions..............       $    4,964,000          $    1,094,000
                                                                           =====================  =====================

      Ratio of FFO to fixed charges...................................                32.09                   17.64
                                                                           =====================  =====================
      Ratio of FFO to combined fixed charges and preferred
      distributions...................................................                 4.99                   17.64
                                                                           =====================  =====================

</TABLE>


<TABLE>
<CAPTION>


                                                                   Years Ended December 31,
                                            1999             1998            1997             1996            1995
                                       ----------------  --------------- --------------- ---------------- --------------
<S>                                    <C>               <C>             <C>             <C>              <C>
FFO................................     $ 76,353,000     $ 57,430,000    $ 17,597,000     $    303,000    $    720,000
Interest expense...................        3,153,000        2,361,000           1,000                -               -
Minority   interest   in   income   -
preferred units....................        4,156,000                -               -                -               -
Preferred dividends................        3,406,000                -               -                -               -
                                       ----------------  --------------- --------------- ---------------- --------------
Adjusted   FFO   available  to  cover
   fixed charges...................     $ 87,068,000     $ 59,791,000    $ 17,598,000     $    303,000   $     720,000
                                       ================  =============== =============== =============== ===============

Fixed charges (1)..................     $  4,142,000     $  2,629,000    $      1,000     $          -    $          -
Preferred distributions............        7,562,000                -               -                -               -
                                       ----------------  --------------- --------------- ---------------- --------------
Combined  fixed charges and preferred
   distributions...................     $ 11,704,000     $  2,629,000    $      1,000     $          -    $          -
                                       ================  =============== =============== ================ ==============

Ratio of FFO to fixed charges......            21.02            22.74          17,598         N/A              N/A
                                       ================  =============== =============== ================ ==============
Ratio of FFO to combined fixed
   charges and preferred
   distributions...................             7.44            22.74          17,598         N/A              N/A
                                       ================  =============== =============== ================ ==============


</TABLE>


(1) Fixed charges include interest expense plus capitalized interest.


<TABLE> <S> <C>


<ARTICLE>                     5
<LEGEND>

                                   Exhibit 27
                             PS BUSINESS PARKS. INC.
                      EXHIBIT 27 - FINANCIAL DATA SCHEDULE
                           ARTICLE 5 OF REGULATION S-X


</LEGEND>
<CIK>                                                                 0000866368
<NAME>                                                   PS Business Parks, Inc.
<MULTIPLIER>                                                                   1
<CURRENCY>                                                                U.S. $

<S>                                                                          <C>
<PERIOD-TYPE>                                                              3-MOS
<FISCAL-YEAR-END>                                                    DEC-31-2000
<PERIOD-START>                                                       JAN-01-2000
<PERIOD-END>                                                         MAR-31-2000
<EXCHANGE-RATE>                                                                1
<CASH>                                                                41,572,000
<SECURITIES>                                                                   0
<RECEIVABLES>                                                            203,000
<ALLOWANCES>                                                                   0
<INVENTORY>                                                                    0
<CURRENT-ASSETS>                                                      41,572,000
<PP&E>                                                               859,456,000
<DEPRECIATION>                                                      (59,277,000)
<TOTAL-ASSETS>                                                       897,428,000
<CURRENT-LIABILITIES>                                                 22,468,000
<BONDS>                                                                        0
                                                          0
                                                           55,000,000
<COMMON>                                                                 234,000
<OTHER-SE>                                                           499,377,000
<TOTAL-LIABILITY-AND-EQUITY>                                         897,428,000
<SALES>                                                                        0
<TOTAL-REVENUES>                                                      35,864,000
<CGS>                                                                          0
<TOTAL-COSTS>                                                          9,577,000
<OTHER-EXPENSES>                                                       9,259,000
<LOSS-PROVISION>                                                               0
<INTEREST-EXPENSE>                                                       374,000
<INCOME-PRETAX>                                                       10,743,000
<INCOME-TAX>                                                                   0
<INCOME-CONTINUING>                                                   10,743,000
<DISCONTINUED>                                                                 0
<EXTRAORDINARY>                                                                0
<CHANGES>                                                                      0
<NET-INCOME>                                                          10,743,000
<EPS-BASIC>                                                               0.40
<EPS-DILUTED>                                                               0.40



</TABLE>


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