<ARTICLE>     5
<LEGEND>
The schedule contains summary financial information extracted from Winthrop
Interim Partners I, A Limited Partnership and is qualified in its entirety by
reference to such financial statements.
</LEGEND>
<CURRENCY>                      U.S. DOLLARS

                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                              DEC-31-1999
<PERIOD-START>                                 JAN-01-1999
<PERIOD-END>                                   SEP-30-1999
<EXCHANGE-RATE>                                      1.000
<CASH>                                           5,727,000<F1>
<SECURITIES>                                             0
<RECEIVABLES>                                      141,000
<ALLOWANCES>                                        18,000
<INVENTORY>                                              0
<CURRENT-ASSETS>                                         0
<PP&E>                                         102,617,000
<DEPRECIATION>                                  55,137,000
<TOTAL-ASSETS>                                  65,395,000
<CURRENT-LIABILITIES>                                    0
<BONDS>                                        177,701,000<F2>
<PREFERRED-MANDATORY>                                    0
<PREFERRED>                                              0
<COMMON>                                                 0
<OTHER-SE>                                    (116,157,000)
<TOTAL-LIABILITY-AND-EQUITY>                    65,395,000
<SALES>                                                  0
<TOTAL-REVENUES>                                10,035,000
<CGS>                                                    0
<TOTAL-COSTS>                                    9,297,000
<OTHER-EXPENSES>                                         0
<LOSS-PROVISION>                                         0
<INTEREST-EXPENSE>                               8,853,000
<INCOME-PRETAX>                                 (8,242,000)
<INCOME-TAX>                                             0
<INCOME-CONTINUING>                             (8,242,000)
<DISCONTINUED>                                           0
<EXTRAORDINARY>                                          0
<CHANGES>                                                0
<NET-INCOME>                                    (8,242,000)
<EPS-BASIC>                                      (5,866.42)
<EPS-DILUTED>                                    (5,866.42)
<FN>
<F1> Cash included $5,612,000 of restricted cash.
<F2> Includes accrued interest of $69,915,000.
</FN>