<ARTICLE> 5
<CIK> 0001022344
<NAME> SIMON PROPERTY GROUP, L.P.
<MULTIPLIER> 1,000

                             
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                         DEC-31-1999
<PERIOD-END>                              DEC-31-1999
<CASH>                                        153,743
<SECURITIES>                                        0
<RECEIVABLES>                                 302,438
<ALLOWANCES>                                   14,488
<INVENTORY>                                         0
<CURRENT-ASSETS>                                    0<F1>
<PP&E>                                     12,640,146
<DEPRECIATION>                              1,093,103
<TOTAL-ASSETS>                             11,547,043
<CURRENT-LIABILITIES>                               0<F1>
<BONDS>                                     8,768,841
<PREFERRED-MANDATORY>                               0
<PREFERRED>                                 1,032,320
<COMMON>                                    3,635,881
<OTHER-SE>                                  (114,964)
<TOTAL-LIABILITY-AND-EQUITY>               12,640,146
<SALES>                                             0
<TOTAL-REVENUES>                            1,880,235
<CGS>                                               0
<TOTAL-COSTS>                               1,019,157
<OTHER-EXPENSES>                                    0
<LOSS-PROVISION>                                8,367
<INTEREST-EXPENSE>                            579,848
<INCOME-PRETAX>                               297,843
<INCOME-TAX>                                        0
<INCOME-CONTINUING>                           297,843
<DISCONTINUED>                                      0
<EXTRAORDINARY>                               (6,705)
<CHANGES>                                           0
<NET-INCOME>                                  291,138
<EPS-BASIC>                                      0.95
<EPS-DILUTED>                                    0.95
<FN>
<F1> The SPG Operating Partnership does not report using a classified balance
sheet.
</FN>