<ARTICLE> 5 <LEGEND> THE SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE CONSOLIDATED BALANCE SHEET AND STATEMENT OF OPERATIONS AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS. </LEGEND> <CIK> 0000712770 <NAME> ONE LIBERTY PROPERTIES, INC. <MULTIPLIER> 1000 <PERIOD-TYPE> 9-MOS <FISCAL-YEAR-END> DEC-31-1999 <PERIOD-END> SEP-30-1999 <CASH> 12,148 <SECURITIES> 0 <RECEIVABLES> 0 <ALLOWANCES> 0 <INVENTORY> 0 <CURRENT-ASSETS> 0 <PP&E> 0 <DEPRECIATION> 0 <TOTAL-ASSETS> 87,276 <CURRENT-LIABILITIES> 0 <BONDS> 35,883 <PREFERRED-MANDATORY> 10,850 <PREFERRED> 0 <COMMON> 2,964 <OTHER-SE> 36,057 <TOTAL-LIABILITY-AND-EQUITY> 87,276 <SALES> 0 <TOTAL-REVENUES> 7,797 <CGS> 0 <TOTAL-COSTS> 0 <OTHER-EXPENSES> 3,972 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 0 <INCOME-PRETAX> 3,874 <INCOME-TAX> 0 <INCOME-CONTINUING> 3,874 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 3,874 <EPS-BASIC> .98 <EPS-DILUTED> .98