<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>                 YEAR
<FISCAL-YEAR-END>             DEC-31-1999
<PERIOD-END>                  DEC-31-1999
<CASH>                       11,247
<SECURITIES>                      0
<RECEIVABLES>                     0
<ALLOWANCES>                      0
<INVENTORY>                       0
<CURRENT-ASSETS>                  0
<PP&E>                            0
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<CURRENT-LIABILITIES>             0
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<PREFERRED-MANDATORY>        10,802
<PREFERRED>                       0
<COMMON>                      2,980
<OTHER-SE>                   36,020
<TOTAL-LIABILITY-AND-EQUITY> 85,949
<SALES>                           0
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<CGS>                             0
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<INTEREST-EXPENSE>                0
<INCOME-PRETAX>               4,879
<INCOME-TAX>                      0
<INCOME-CONTINUING>           4,879
<DISCONTINUED>                    0
<EXTRAORDINARY>                   0
<CHANGES>                         0
<NET-INCOME>                  4,879
<EPS-BASIC>                  1.23
<EPS-DILUTED>                  1.23