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                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                  -------------

                                 SCHEDULE 13D/A

             INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT
            TO RULE 13D-1(A) AND AMENDMENTS THERETO FILED PURSUANT TO
                                   RULE 13D-2

                               (AMENDMENT NO. 13)

                              ATLANTIC REALTY TRUST

                                (NAME OF ISSUER)

         COMMON SHARES OF BENEFICIAL INTEREST, PAR VALUE $.01 PER SHARE
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                         (Title of Class of Securities)


                                   048798-10-2
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                                 (CUSIP Number)

                                  MILTON COOPER
                            KIMCO REALTY CORPORATION
                             3333 NEW HYDE PARK ROAD
                          NEW HYDE PARK, NY 11042-0020
                                 (516) 869-9000
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                  (Name, Address and Telephone Number of Person
                Authorized to Receive Notices and Communications)


                                  MAY 12, 2005
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             (Date of Event Which Requires Filing of This Statement)


If the filing person has previously filed a statement on Schedule 13G to report
the acquisition which is the subject of this Schedule 13D, and is filing this
schedule because of Rule 13d-1(e), 13d-1(f) or 13d-1(g), check the following
box: [ ].

                         (Continued on following pages)
                               (Page 1 of 7 Pages)
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CUSIP No. 048798-10-2                                          Page 2 of 7 Pages


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1.  NAMES OF REPORTING PERSONS
    I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

    Kimco Realty Corporation

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2.  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                                         (a) [ ]
                                                                         (b) [ ]

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3.  SEC USE ONLY

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4.  SOURCE OF FUNDS

    WC
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5.  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 
    2(d) OR 2(e)
                                                                             [ ]

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6.  CITIZENSHIP OR PLACE OF ORGANIZATION

    Maryland
------------------- ------------------------------------------------------------
    Number of       7.  SOLE VOTING POWER                                       
      Shares            355,498
                    ------------------------------------------------------------
   Beneficially     8.  SHARED VOTING POWER                              
     Owned By           962,289
                    ------------------------------------------------------------
       Each         9.  SOLE DISPOSITIVE POWER
    Reporting           355,498
                    ------------------------------------------------------------
   Person With      10. SHARED DISPOSITIVE POWER
                        962,289
------------------- ------------------------------------------------------------

11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
    1,317,787

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12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
                                                                             [ ]

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13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 
    37.0%

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14. TYPE OF REPORTING PERSON REPORTING

    CO
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CUSIP No. 048798-10-2                                          Page 3 of 7 Pages
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1.  NAMES OF REPORTING PERSONS
    I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

    Kimco Realty Services, Inc.

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2.  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP 
                                                                         (a) [ ]
                                                                         (b) [ ]

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3.  SEC USE ONLY

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4.  SOURCE OF FUNDS

    WC, AF
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5.  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO 
    ITEMS 2(d) OR 2(e)
                                                                             [ ]

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6.  CITIZENSHIP OR PLACE OF ORGANIZATION

    Delaware
------------------- ------------------------------------------------------------
    Number of       7.  SOLE VOTING POWER                                     
      Shares        ------------------------------------------------------------
   Beneficially     8.  SHARED VOTING POWER                                     
     Owned By           962,289
                    ------------------------------------------------------------
       Each         9.  SOLE DISPOSITIVE POWER                               
    Reporting           none
                    ------------------------------------------------------------
   Person With      10. SHARED DISPOSITIVE POWER                   
                        962,289
------------------- ------------------------------------------------------------

11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
    962,289

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12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
                                                                             [ ]

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13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 
    27.0%

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14. TYPE OF REPORTING PERSON REPORTING

    CO
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CUSIP No. 048798-10-2                                          Page 4 of 7 Pages
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1.  NAMES OF REPORTING PERSONS
    I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

     Milton Cooper
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2.  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP 
                                                                         (a) [ ]
                                                                         (b) [ ]

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3.  SEC USE ONLY

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4.  SOURCE OF FUNDS

    OO
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5.  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
    ITEMS 2(d) OR 2(e)
                                                                             [ ]

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6. CITIZENSHIP OR PLACE OF ORGANIZATION

   United States
------------------- ------------------------------------------------------------
    Number of       7.  SOLE VOTING POWER                                  
      Shares            29,824
                    ------------------------------------------------------------
   Beneficially     8.  SHARED VOTING POWER                           
     Owned By           3,127
                    ------------------------------------------------------------
       Each         9.  SOLE DISPOSITIVE POWER                         
    Reporting           29,824
                    ------------------------------------------------------------
   Person With      10. SHARED DISPOSITIVE POWER                  
                        3,127
------------------- ------------------------------------------------------------
11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
         32,951
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12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
                                                                             [ ]

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13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 
    .9%

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14. TYPE OF REPORTING PERSON REPORTING

    IN
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     This Amendment No. 13 amends and  supplements the Schedule 13D filed on May
24, 1996, and amended on July 3, 1996, by Kimco Realty  Corporation,  a Maryland
corporation  ("Kimco"),  and Milton Cooper and further  amended on May 15, 1997,
June 10, 1997, April 30, 1998,  September 20, 1999,  August 10, 2000, August 23,
2000, August 9, 2001,  January 31, 2003,  August 3, 2004,  February 24, 2005 and
March 28,  2005 by Kimco,  Milton  Cooper and Kimco  Realty  Services,  Inc.,  a
Delaware corporation  ("Services") (as amended, the "Schedule 13D"), relating to
the  common  shares  of  beneficial  interest,  par value  $.01 per  share  (the
"Shares"),  of Atlantic Realty Trust, a Maryland  corporation  (the  "Company").
Unless  otherwise  indicated,  all capitalized  terms used herein shall have the
meanings given to them in the Schedule 13D, and unless  amended or  supplemented
hereby, all information previously filed remains in effect.

ITEM 4.  PURPOSE OF THE TRANSACTION

Item 4 is hereby amended to add the following:

     On May 12,  2005,  Kimco and the Company  entered  into an amendment to the
Indemnification   Agreement  dated  as  of  March  28,  2005  (as  amended,  the
"Indemnification Agreement"), pursuant to which the Company agreed to extend the
Exclusivity Period (as defined in the Schedule 13D) until June 12, 2005.

     Kimco,  Services and Milton  Cooper each  reserves the right,  based on all
relevant  factors,  and in each case subject to the provisions of the Standstill
Agreement (as defined in the Schedule  13D), to acquire  additional  Shares,  to
dispose  of all or a portion of its  holdings  of  Shares,  to modify,  amend or
rescind any  proposals  with respect to the Property (as defined in the Schedule
13D)(including  the  Proposal  (as defined in the  Schedule  13D)),  to make any
alternative  proposals with respect to an acquisition of Shares or assets of the
Company,  a merger, a  reorganization  or any other  extra-ordinary  transaction
involving the Company or its assets,  or to change its intention with respect to
any or all of the matters referred to in this Item 4.


Item 6.  CONTRACTS, ARRANGEMENTS, UNDERSTANDINGS OR RELATIONSHIPS WITH RESPECT 
TO SECURITIES OF THE ISSUER.

     The response to Item 4 is incorporated herein by reference.

ITEM 7.  MATERIALS TO BE FILED AS EXHIBITS.

     Exhibit 10.     Indemnification Agreement.





                                    SIGNATURE

     After reasonable inquiry and to the best of the undersigned's knowledge and
belief,  the  undersigned  certifies  that  the  information  set  forth in this
statement is true, complete and correct.



                                       KIMCO REALTY CORPORATION

                                By:   /s/ Milton Cooper
                                   ---------------------------------------------
                                   Name:  Milton Cooper
                                   Title: Chairman and Chief Executive Officer

                                       KIMCO REALTY SERVICES, INC.


                                By:   /s/ Milton Cooper
                                   ---------------------------------------------
                                   Name:  Milton Cooper
                                   Title: President


                                      /s/ Milton Cooper
                                   ---------------------------------------------
                                   Milton Cooper
May 12, 2005





                                  Exhibit Index


Exhibit 10. Amendment  dated as of May 12, 2005,  by and among  Atlantic  Realty
            Trust and Kimco Realty Corporation to the Indemnification Agreement,
            dated as of March 28, 2005.