UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549


                                    FORM 8-K

                                 CURRENT REPORT

                     Pursuant to Section 13 or 15(d) of the
                         Securities Exchange Act of 1934


         Date of Report (Date of earliest event reported) June 30, 2005


                          ONE LIBERTY PROPERTIES, INC.
                          ----------------------------
               (Exact name of Registrant as specified in charter)


    Maryland                       001-09279                      13-3147497
    ------------------------------------------------------------------------
   (State or other            (Commission file No.)            (IRS Employer
    jurisdiction of                                               I.D. No.)
    incorporation)


          60 Cutter Mill Road, Suite 303, Great Neck, New York   11021
          -------------------------------------------------------------
          (Address of principal executive offices)           (Zip code)


        Registrant's telephone number, including area code     516-466-3100

     Check the  appropriate  box below if the Form 8-K  filing  is  intended  to
simultaneously  satisfy the filing obligation of the registrant under any of the
following provisions (see General Instruction A.2. below):

     Written  communications  pursuant to Rule 425 under the  Securities Act (17
CFR 230.425)

     Soliciting  material pursuant to Rule 14a-12 under the Exchange Act (17 CFR
240.14a-12)

     Pre-commencement   communications  pursuant  to  Rule  14d-2(b)  under  the
Exchange Act (17 CFR 240.14d-2(b))

     Pre-commencement   communications  pursuant  to  Rule  13e-4(c)  under  the
Exchange Act (17 CFR 240.13e-4(c))


Item 8.01  Other Events.

On June 30,  2005,  Elpans  LLC, a  wholly-owned  subsidiary  of the  registrant
("Seller"),  sold the unused  development  or "air" rights  relating to Seller's
property located at 300 Gold Street, Brooklyn, New York (the "Property") to A.P.
Development L.L.C. ("Buyer") for $11,000,000,  pursuant to that certain Contract
of Sale,  dated as of December 21,  2004,  between  Seller and Buyer,  a copy of
which was filed as an exhibit to  registrant's  8-K filed on December  21, 2004.
The purchaser also paid certain closing expenses of the Seller.

In addition,  in  accordance  with the terms and  conditions  of the Contract of
Sale,  Seller and Buyer  entered  into a Zoning Lot and  Development  Agreement,
dated as of June 30, 2005,  pursuant to which Seller and Buyer agreed to certain
procedures and  restrictions  in respect of the development by the Seller of the
Property and by the Buyer of Buyer's adjacent property.

Seller will report a gain of approximately  $9,800,000 on the sale of the unused
development  or  "air"  rights  relating  to the  Property.  This  gain  will be
recognized by the registrant for financial  reporting  purposes,  but registrant
anticipates  that this gain will be deferred for federal  income tax purposes by
Seller entering into a 1031 tax-deferred  exchange,  and using the sale proceeds
to acquire one or more replacement  properties.  As of this date, Seller has not
identified replacement properties and can make no assurance that it will be able
to  locate  suitable  replacement   properties  in  accordance  with  applicable
statutory and regulatory requirements.

Caution Concerning Forward-Looking Statements: Materials included in this filing
may  contain  "forward-looking  statements"  within the  meaning of the  Private
Securities  Litigation  Reform  Act of  1995.  Such  forward-looking  statements
involve  known and unknown  risks,  uncertainties  and other  factors that could
cause actual results to be materially  different from historical results or from
any future  results  expressed  or implied by such  forward-looking  statements.
Statements  that include the words "may," "will,"  "would,"  "could,"  "should,"
"believes,"    "estimates,"   "projects,"   "potential,"   "expects,"   "plans,"
"anticipates,"  "intends,"  "continues,"  "forecast," "designed," "goal," or the
negative of those words or other comparable words should be considered uncertain
and forward-looking.

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended,
the  Registrant  has duly  caused  this report to be signed on its behalf by the
undersigned hereunto duly authorized.


                                          ONE LIBERTY PROPERTIES, INC.


Date:    June 30, 2005                    By:  /s/ Mark H. Lundy
                                               ------------------
                                               Mark H. Lundy
                                               Vice President and Secretary