WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 5
<LEGEND> AMB CONTRIBUTED PROPERTIES
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1996
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               JUN-30-1997
<CASH>                                          31,419
<SECURITIES>                                         0
<RECEIVABLES>                                   23,196
<ALLOWANCES>                                     1,077
<INVENTORY>                                          0
<CURRENT-ASSETS>                                71,070
<PP&E>                                       1,766,888
<DEPRECIATION>                                  78,805
<TOTAL-ASSETS>                               1,759,153
<CURRENT-LIABILITIES>                          630,089
<BONDS>                                        596,560
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                             0
<OTHER-SE>                                   1,119,466
<TOTAL-LIABILITY-AND-EQUITY>                 1,759,153
<SALES>                                        114,693
<TOTAL-REVENUES>                               115,408
<CGS>                                                0
<TOTAL-COSTS>                                   79,081
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                              22,751
<INCOME-PRETAX>                                 36,046
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                             36,046
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    36,046
<EPS-PRIMARY>                                        0
<EPS-DILUTED>                                        0
        

</TABLE>