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): April 14, 2004

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

          Maryland               Commission File Number:          95-2635431
          --------                      1-8383                    ----------
(State or other jurisdiction                                  (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 April 14, 2004, the Company  issued a press release  announcing its unaudited
earnings  results for the quarter  ended March 31,  2004.  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: April 14, 2004                    By: /s/ Wayne N. Pham
                                        ------------------------------------
                                        Wayne N. Pham
                                        Vice President of Finance and Controller


                                     - 2 -



Exhibit 99.1


                                                                   Press Release

For Immediate News Release
April 14, 2004


  MISSION WEST PROPERTIES, INC. ANNOUNCES FIRST QUARTER 2004 UNAUDITED 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 March 31, 2004 was
$27,178,000 or $0.26 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 $28,655,000 or $0.28 per diluted common share for the same period in
2003, a per share decrease of approximately 7.1%. On a sequential quarter basis,
FFO per diluted  common share  decreased  $0.04 over the previous  quarter ended
December  31, 2003,  which  included  $0.02 per diluted  share from prior tenant
bankruptcy settlements.

Net income to common  stockholders  per diluted  share was $0.20 for the quarter
ended March 31, 2004  compared to $0.23 for the same period in 2003, a per share
decrease of approximately 13%.

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 109
properties  totaling  approximately  7.9 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
                                    UNAUDITED
        (In thousands, except share, per share and property data amounts)





                                                   Three Months        Three Months
                                                      Ended               Ended
                                                   Mar 31, 2004        Mar 31, 2003
                                                 -----------------  -----------------
REVENUES:
                                                                
Rental revenues from real estate                       $32,048            $31,431
Tenant reimbursements                                    4,218              4,575
Other income, including interest                           394                735
                                                 -----------------  -----------------
  Total revenues                                        36,660             36,741
                                                 -----------------  -----------------
EXPENSES:
Operating expenses                                       1,991              1,519
Real estate taxes                                        2,994              3,075
Depreciation & amortization of real estate               5,852 (1)          4,563
General and administrative                                 348                358
Interest                                                 4,363              3,406
Interest (related parties)                                 252                294
                                                 -----------------   -----------------
  Total expenses                                        15,800             13,215
                                                 -----------------   -----------------
Income before minority interests & equity in
  earnings of unconsolidated joint venture              20,860             23,526
Equity in earnings of unconsolidated joint
  venture                                                  591                737
                                                 -----------------   -----------------
Income before minority interests                        21,451             24,263
Minority interests                                      17,817             20,229
                                                 -----------------   -----------------
   Income from continuing operations                     3,634              4,034
                                                 -----------------   -----------------

Net income to common stockholders                       $3,634             $4,034
                                                 =================   =================
Net income to minority interests                       $17,817            $20,229
                                                 =================   =================
Income per share from continuing operations:
   Basic                                                 $0.20              $0.23
                                                 =================   =================
   Diluted                                               $0.20              $0.23
                                                 =================   =================
Net income per share to common stockholders:
   Basic                                                 $0.20              $0.23
                                                 =================   =================
   Diluted                                               $0.20              $0.23
                                                 =================   =================
Weighted average shares of common stock (basic)     17,969,416         17,637,260
                                                 =================   =================
Weighted average shares of common stock             18,075,262         17,695,001
(diluted)                                        =================   =================
Weighted average O.P. units outstanding             86,503,459         86,511,686
                                                 =================   =================

FUNDS FROM OPERATIONS
Funds from operations                                  $27,178            $28,655
                                                 =================   =================
Funds from operations per share (2)                     $ 0.26             $ 0.28
                                                 =================   =================
Outstanding common stock                            18,014,691         17,653,691
                                                 =================   =================
Outstanding O.P. units                              86,467,195         86,498,064
                                                 =================   =================
Weighted average O.P. units & common stock
   outstanding (diluted)                           104,578,721        104,206,687
                                                 =================   =================



                                     - 4 -





                                                   Three Months        Three Months
                                                      Ended               Ended
FUNDS FROM OPERATIONS CALCULATION                  Mar 31, 2004        Mar 31, 2003
                                                 -----------------   -----------------
Net income                                              $3,634             $4,034
Add:
     Minority interests (3)                             17,692             20,057
     Depreciation and amortization of real estate        5,852              4,564
                                                 -----------------   -----------------
Funds from operations                                  $27,178            $28,655
                                                 =================   =================



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
                                                      Ended               Ended
PROPERTY AND OTHER DATA:                           Mar 31, 2004        Mar 31, 2003
                                                 -----------------   -----------------
                                                                 
Total properties, end of period                            109                101
Total square feet, end of period                     7,917,262          7,163,930
Average monthly rental revenue per square foot (4)       $1.78              $1.74
Average occupancy                                         75.8%              83.2%
Actual occupancy                                          75.3%              82.8%
Straight-line rent                                     ($   68)              $244
Capital expenditures                                    $1,076               $653




                                     - 5 -







BALANCE SHEET (UNAUDITED)
                                                March 31, 2004       December 31, 2003
                                              --------------------  --------------------
Assets:
                                                                
Land                                              $  279,163          $   279,163
Buildings and improvements                           785,812              785,660
Real estate related intangible assets                 18,284               18,284
                                              --------------------  --------------------
   Total investments in properties                 1,083,259            1,083,107
Less accumulated depreciation                       (93,968)             (88,116)
                                              --------------------  --------------------
   Net investments in properties                     989,291              994,991
Investments in unconsolidated joint venture            2,377                2,285
                                              --------------------  --------------------
   Net investments in real estate assets             991,668              997,276
Cash                                                   3,094                4,129
Deferred rent                                         18,903               18,970
Other assets                                          14,547               16,025
                                              --------------------  --------------------
   Total assets                                   $1,028,212           $1,036,400
                                              ====================  ====================

Liabilities:
Line of credit - related parties                    $  2,957             $  6,320
Revolving line of credit                              20,810               23,965
Mortgage notes payable                               298,564              299,858
Mortgage notes payable - related parties              10,679               10,762
Interest payable                                         332                  332
Security deposits                                      9,696               10,248
Prepaid rental income                                 13,315               12,723
Dividend/distribution payable                         25,076               25,031
Accounts payable and accrued expenses                  8,297                5,085
                                              --------------------  --------------------
   Total liabilities                                 389,726              394,324

Minority interests                                   523,693              528,062

Stockholders' equity:
Common stock, $.001 par value                             18                   18
Paid in capital                                      133,604              132,136
Accumulated deficit                                 (18,829)             (18,140)
                                              --------------------  --------------------
   Total stockholders' equity                        114,793              114,014
                                              --------------------  --------------------
   Total liabilities and stockholders' equity     $1,028,212           $1,036,400
                                              ====================  ====================




(1)  Includes  approximately  $912 in amortization  expense for the three months
     ended March 31, 2004 for the amortization of the origination value and fair
     market  value  of  acquired  leases  of  the  San  Tomas   Technology  Park
     acquisition pursuant to Statement of Financial Accounting Standard ("SFAS")
     No. 141, "Business Combinations."

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

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

(4)  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 -