<TABLE> <S> <C>
<ARTICLE> 5
<LEGEND>
The schedule contains summary financial information extracted from the
Consolidated Balance Sheet as of June 30, 2000, and the Consolidated Statement
of Operations for the quarter ended June 30, 2000 of Mission West Properties,
Inc., and is qualified in its entirety by reference to such financial statements
</LEGEND>
<CIK> 0001067419
<NAME> Mission West Properties, Inc.
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-START> JAN-01-2000
<PERIOD-END> JUN-30-2000
<CASH> 6,777
<SECURITIES> 0
<RECEIVABLES> 0
<ALLOWANCES> 0
<INVENTORY> 0
<CURRENT-ASSETS> 0
<PP&E> 795,532
<DEPRECIATION> (26,061)
<TOTAL-ASSETS> 787,511
<CURRENT-LIABILITIES> 0
<BONDS> 0
0
0
<COMMON> 17
<OTHER-SE> 101,187
<TOTAL-LIABILITY-AND-EQUITY> 787,511
<SALES> 0
<TOTAL-REVENUES> 27,472
<CGS> 0
<TOTAL-COSTS> 3,468
<OTHER-EXPENSES> 4,069
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 3,380
<INCOME-PRETAX> 2,930
<INCOME-TAX> 0
<INCOME-CONTINUING> 2,930
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 2,930
<EPS-BASIC> .17
<EPS-DILUTED> .17
</TABLE>