UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM 8-K

                Current Report Pursuant to Section 13 or 15(d) of
                       The Securities Exchange Act of 1934

       Date of report (date of earliest event reported): October 15, 2003

                          MISSION WEST PROPERTIES, INC.
             (Exact name of registrant as specified in its charter)

         Maryland              Commission File Number:            95-2635431
         --------                                                 ----------
(State or other jurisdiction           1-8383                  (I.R.S. Employer
      of incorporation)                                         Identification)


                10050 Bandley Drive, Cupertino, California 95014
                    (Address of principal executive offices)

                                 (408) 725-0700
              (Registrant's telephone number, including area code)




--------------------------------------------------------------------------------







ITEM 12. RESULTS OF OPERATIONS AND FINANCIAL CONDITIONS.

(a) The following  information is being furnished by the Company as required for
Item 12(a) of this report and shall not be deemed to be "filed" for  purposes of
Section 18 of the Securities Exchange Act of 1934:

On October 15, 2003, the Company issued a press release  announcing its earnings
results for the quarter ended  September 30, 2003. The press release is attached
to this  Current  Report as Exhibit  99.1 and is  incorporated  by  reference in
response to Item 12(a) of this report.






















                                   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 hereunto duly authorized.


                                       MISSION WEST PROPERTIES, INC.

             Date: October 16, 2003    By: /s/ Wayne N. Pham
                                       ---------------------------------------
                                       Wayne N. Pham
                                       Vice President of Finance and Controller

                                     - 2 -



Exhibit 99.1


[GRAPHIC OMITTED]

                                                                   PRESS RELEASE

For Immediate News Release
October 15, 2003


   MISSION WEST PROPERTIES, INC. ANNOUNCES THIRD QUARTER 2003 EARNINGS RESULTS

  "WE BUILD THE BUILDINGS FOR THE HIGH TECH COMPANIES THAT BUILD THE INTERNET"

CUPERTINO,  CA - MISSION WEST PROPERTIES,  INC.  (AMEX/PCX:  MSW) reported today
that Funds From Operations  ("FFO") for the quarter ended September 30, 2003 was
$29,214,000 or $0.28 per diluted common share  (considering the potential effect
of all O.P. units being  exchanged for shares of the Company's  common stock) as
compared to $29,051,000 or $0.28 per diluted common share for the same period in
2002. On a sequential  quarter basis,  FFO per diluted common share remained the
same compared to the previous quarter ended June 30, 2003.

Net income to common  stockholders  per diluted  share was $0.22 for the quarter
ended  September 30, 2003 compared to $0.26 for the same period in 2002. For the
nine months ended  September  30, 2003,  net income to common  stockholders  per
diluted  share was $0.68,  down from $0.77 per diluted  share from one year ago,
which  included  $0.06 from the sale of real  estate  included  in  discontinued
operations.

COMPANY PROFILE

Mission West Properties, Inc. operates as a self-managed,  self-administered and
fully integrated REIT engaged in the management, leasing, marketing, development
and acquisition of commercial R&D properties,  primarily  located in the Silicon
Valley portion of the San Francisco Bay Area. Currently, the Company manages 108
properties  totaling  approximately  7.8 million  square  feet.  For  additional
information, please contact Investor Relations at 408-725-0700.

The matters described herein contain forward-looking statements. Such statements
can be  identified  by the use of  forward-looking  terminology  such as "will",
"anticipate", "estimate", "expect", "intends", or similar words. Forward-looking
statements involve a number of risks,  uncertainties or other factors beyond the
Company's  control,  which may cause  material  differences  in actual  results,
performance or other  expectations.  These factors include,  but are not limited
to, the ability to complete  acquisitions  under the Berg Land  Holdings  Option
Agreement  with the Berg  Group  and other  factors  detailed  in the  Company's
registration  statements,  and periodic  filings with the  Securities & Exchange
Commission.

                                     - 3 -



                          MISSION WEST PROPERTIES, INC.
                             SELECTED FINANCIAL DATA

        (In thousands, except share, per share and property data amounts)





                                                   Three Months        Three Months      Nine Months       Nine Months
                                                      Ended               Ended             Ended             Ended
                                                  Sept 30, 2003       Sept 30, 2002     Sept 30, 2003     Sept 30, 2002
                                                 -----------------    ---------------   ---------------   ---------------
REVENUES:
                                                                                              
Rental revenues from real estate                    $33,782              $32,165          $ 98,408         $ 97,403(1)
Tenant reimbursements                                 4,796                5,219            14,360           15,420
Other income, including interest                        567                  487             1,871            1,261
                                                 -----------------    ---------------   ---------------   ---------------
  Total revenues                                     39,145               37,871           114,639          114,084
                                                 -----------------    ---------------   ---------------   ---------------
EXPENSES:
Operating expenses                                    2,555                1,974             5,965            6,170
Real estate taxes                                     2,876                3,091             9,391            9,152
Depreciation & amortization of real estate            5,797(2)             4,552            15,758(2)        13,363
General and administrative                              360                  386             1,039            1,190
Interest                                              4,335                2,413            12,097            7,045
Interest (related parties)                              280                  861               830            2,770
                                                 -----------------    ---------------   ---------------   ---------------
  Total expenses                                     16,203               13,277            45,080           39,690
                                                 -----------------    ---------------   ---------------   ---------------
Income before minority interests & equity in
earnings of unconsolidated joint venture             22,942               24,594            69,559           74,394
Equity in earnings of unconsolidated joint
venture                                                 599                    -             3,358                -
                                                 -----------------    ---------------   ---------------   ---------------
Income before minority interests                     23,541               24,594            72,917           74,394
Minority interests                                   19,598               20,036            60,785           61,629
                                                 -----------------    ---------------   ---------------   ---------------
   Income from continuing operations                  3,943                4,558            12,132           12,765
                                                 -----------------    ---------------   ---------------   ---------------

Discontinued operations, net of minority interests:
Gain from disposal of discontinued operations             -                    -                 -            1,018
Income attributable to discontinued operations            -                    -                 -               49
                                                 -----------------    ---------------   ---------------   ---------------
   Income from discontinued operations                    -                    -                 -            1,067
                                                 -----------------    ---------------   ---------------   ---------------

Net income to common stockholders                    $3,943               $4,558           $12,132          $13,832
                                                 =================    ===============   ===============   ===============
Net income to minority interests                    $19,598              $20,036           $60,785          $66,952
                                                 =================    ===============   ===============   ===============
Income per share from continuing operations:
   Basic                                              $0.22                $0.26             $0.68            $0.73
                                                 =================    ===============   ===============   ===============
   Diluted                                            $0.22                $0.26             $0.68            $0.71
                                                 =================    ===============   ===============   ===============
Income per share from discontinued operations:
   Basic                                                  -                    -                 -            $0.06
                                                 =================    ===============   ===============   ===============
   Diluted                                                -                    -                 -            $0.06
                                                 =================    ===============   ===============   ===============
Net income per share to common stockholders:
   Basic                                              $0.22                $0.26             $0.68            $0.79
                                                 =================    ===============   ===============   ===============
   Diluted                                            $0.22                $0.26             $0.68            $0.77
                                                 =================    ===============   ===============   ===============
Weighted average shares of common stock (basic)        17,747,293         17,467,329        17,695,920        17,445,759
                                                 =================    ===============   ===============   ===============
Weighted average shares of common stock                17,817,917         17,856,688        17,757,461        17,872,108
(diluted)                                        =================    ===============   ===============   ===============
Weighted average O.P. units outstanding                86,498,064         86,494,032        86,502,555        86,286,956
                                                 =================    ===============   ===============   ===============

FUNDS FROM OPERATIONS
Funds from operations                                     $29,214            $29,051           $86,821           $87,684
                                                 =================    ===============   ===============   ===============
Funds from operations per share (3)                        $ 0.28             $ 0.28            $ 0.83            $ 0.84
                                                 =================    ===============   ===============   ===============
Outstanding common stock                               17,754,691         17,467,329        17,754,691        17,467,329
                                                 =================    ===============   ===============   ===============
Outstanding O.P. units                                 86,498,064         86,494,032        86,498,064        86,494,032
                                                 =================    ===============   ===============   ===============
Weighted average O.P. units & common stock
   outstanding (diluted)                              104,315,981        104,350,720       104,260,016       104,159,065
                                                 =================    ===============   ===============   ===============

                                     - 4 -


                                                   Three Months        Three Months      Nine Months       Nine Months
                                                      Ended               Ended             Ended             Ended
FUNDS FROM OPERATIONS CALCULATION                 Sept 30, 2003       Sept 30, 2002     Sept 30, 2003     Sept 30, 2002
                                                 -----------------    ---------------   ---------------   ---------------
Net income                                          $ 3,943              $ 4,558           $12,132          $13,832
Add:
     Minority interests (4)                          19,474               19,941            60,331           66,546
     Depreciation and amortization of real estate     5,797                4,552            15,758           13,409

Less:
     Gain on sale of JV assets / assets                   -                    -             1,400            6,103
                                                 -----------------    ---------------   ---------------   ---------------
Funds from operations                               $29,214              $29,051           $86,821          $87,684
                                                 =================    ===============   ===============   ===============


Funds From Operations ("FFO") is a non-GAAP  financial  measurement used by real
estate  investment  trusts to measure  and  compare  operating  performance.  As
defined by NAREIT,  FFO represents net income (loss) before minority interest of
unit holders (computed in accordance with GAAP,  accounting principles generally
accepted in the United States of America), excluding gains (or losses) from debt
restructuring and sales of property,  plus real estate related  depreciation and
amortization (excluding  amortization of deferred financing costs,  amortization
of commission and depreciation of non-real estate assets) and after  adjustments
for unconsolidated partnerships and joint ventures.  Management considers FFO an
appropriate  measure of performance  of an equity REIT because,  along with cash
flows from operating activities,  financing activities and investing activities,
it provides  investors with an understanding of our ability to incur and service
debt,  and  make  capital  expenditures.  FFO  should  not be  considered  as an
alternative for net income as a measure of  profitability or is it comparable to
cash flows provided by operating activities  determined in accordance with GAAP.
FFO is not  comparable to similarly  entitled items reported by other REITs that
do not define them exactly as we define FFO.



                                                   Three Months        Three Months      Nine Months       Nine Months
                                                      Ended               Ended             Ended             Ended
PROPERTY AND OTHER DATA:                          Sept 30, 2003       Sept 30, 2002     Sept 30, 2003     Sept 30, 2002
                                                 -----------------    ---------------   ---------------   ---------------
                                                                                             
Total properties, end of period                          108                  101              108              101
Total square feet, end of period                   7,788,742            7,163,930        7,788,742        7,163,930
Average monthly rental revenue per square foot(5)      $1.81                $1.72            $1.76            $1.70
Average occupancy                                      78.4%                88.3%            81.3%            91.8%
Actual occupancy                                       78.3%                85.8%            78.3%            85.8%
Straight-line rent                                      $596               ($484)           $1,046         ($1,088)
Capital expenditures                                    $492                 $586           $1,901             $699




                                     - 5 -





BALANCE SHEET


                                                Sept 30, 2003       December 31, 2002
                                               -----------------   --------------------
Assets:
                                                                 
Land                                            $  276,405              $234,707
Buildings and improvements                         777,156               726,581
Real estate related intangible assets               18,284(6)                  -
                                               -----------------   --------------------
   Total investments in properties               1,071,845               961,288
Less accumulated depreciation                      (82,318)              (66,560)
                                               -----------------   --------------------
   Net investments in properties                   989,527               894,728
Investments in unconsolidated joint venture          2,258                     -
                                               -----------------   --------------------
   Net investments in real estate assets           991,785               894,728
Cash                                                 5,096                 4,479
Deferred rent                                       18,047                17,001
Other assets                                        15,463                13,198
                                               -----------------   --------------------
   Total assets                                 $1,030,391              $929,406
                                               =================   ====================

Liabilities:
Line of credit - related parties                $      769              $ 58,792
Revolving line of credit                            19,966                23,839
Loan payable                                             -                20,000
Mortgage notes payable                             301,115               125,062
Mortgage notes payable - related parties            10,843                11,078
Interest payable                                       335                   337
Security deposits                                   10,389                11,184
Prepaid rental income                               15,003                 9,876
Dividend/distribution payable                       25,021                24,951
Accounts payable and accrued expenses                7,471                 4,698
                                               -----------------   --------------------
   Total liabilities                               390,912               289,817

Minority interests                                 527,023               528,768

Stockholders' equity:
Common stock, $.001 par value                           18                    17
Paid in capital                                    130,552               128,295
Accumulated deficit                                (18,114)              (17,491)
                                               -----------------   --------------------
   Total stockholders' equity                      112,456               110,821
                                               -----------------   --------------------
   Total liabilities and stockholders' equity   $1,030,391              $929,406
                                               =================   ====================



(1)  The Company  recorded an  adjustment of $1.4 million to establish a reserve
     relating  to the  recapture  of  straight-line  revenues  and other  tenant
     related items for the quarter ended March 31, 2002.

(2)  Includes  approximately  $912 and $1,385 in  amortization  expense  for the
     three and nine months  ended  September  30,  2003,  respectively,  for the
     amortization  of the  origination  value and fair market  value of acquired
     leases  of the San  Tomas  property  pursuant  to  Statement  of  Financial
     Accounting Standard ("SFAS") No. 141, "Business Combinations."

(3)  Calculated  on a fully diluted  basis.  Assumes  conversion  of O.P.  units
     outstanding into the Company's common stock.

(4)  The minority  interest for  unrelated  third parties has been deducted from
     total minority interest in calculating FFO.

(5)  Average  monthly  rental  revenue  per square foot has been  determined  by
     taking the cash base rent for the period divided by the number of months in
     the period,  and then  divided by the average  occupied  square feet in the
     period.

(6)  The  Company  applied  the  provisions  of SFAS  No.  141 to the San  Tomas
     Technology  Park  acquisition.  The amount  allocated to intangible  assets
     pursuant to SFAS No. 141 was  approximately  $18.3  million,  which will be
     amortized over the remaining lease terms.

                                     - 6 -