<HTML>
<HEAD>
<TITLE>Form 8-K</TITLE>
</HEAD>
<BODY bgcolor="#FFFFFF">
<!-- PAGEBREAK -->

<DIV style="font-family: 'Times New Roman',Times,serif; margin-left: .25in; width: 7.20in">



<DIV style="font-size: 10pt">
<DIV style="width: 100%; border-bottom: 2pt solid black; font-size: 1pt">&nbsp;</DIV>
<DIV style="width: 100%; border-bottom: 1pt solid black; font-size: 1pt">&nbsp;</DIV>


<P align="center" style="font-size: 14pt"><B>UNITED STATES<BR>
SECURITIES AND EXCHANGE COMMISSION<BR>
<FONT style="font-size: 12pt">Washington, D.C. 20549
</FONT></B>

<P align="center" style="font-size: 18pt"><B>FORM 8-K</B>

<P align="center" style="font-size: 12pt"><B>CURRENT REPORT<BR>
Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934</B>

<P align="center" style="font-size: 10pt"><B>Date of Report (Date of earliest event reported): May 15, 2009</B>

<P align="center">

<P align="center" style="font-size: 24pt"><B>PRIME GROUP REALTY TRUST<BR></B>
<FONT style="font-size: 10pt">(Exact name of registrant as specified in its charter)
</FONT>

<TABLE border="0" width="100%" cellspacing="0" cellpadding="0" style="font-size: 10pt; text-align: center">
<TR>
    <TD width="32%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="33%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="32%">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD style="border-bottom: 1px solid #000000"><B>MARYLAND</B></TD>
    <TD>&nbsp;</TD>
    <TD style="border-bottom: 1px solid #000000"><B>1-13589</B></TD>
    <TD>&nbsp;</TD>
    <TD style="border-bottom: 1px solid #000000"><B>36-4173047</B></TD>
</TR>
<TR valign="top">
    <TD>(State or other Jurisdiction of Incorporation)</TD>
    <TD>&nbsp;</TD>
    <TD>(Commission File Number)</TD>
    <TD>&nbsp;</TD>
    <TD>(IRS Employer Identification No.)</TD>
</TR>
</TABLE>

<TABLE border="0" width="100%" cellspacing="0" cellpadding="0" style="font-size: 10pt; text-align: center">
<TR>
    <TD width="49%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="49%">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD style="border-bottom: 1px solid #000000"><B>330 North Wabash Avenue, Suite 2800, Chicago, Illinois<BR></B></TD>
    <TD>&nbsp;</TD>
    <TD style="border-bottom: 1px solid #000000"><B>60611</B></TD>
</TR>
<TR valign="top">
    <TD>(Address of Principal Executive Offices)</TD>
    <TD>&nbsp;</TD>
    <TD>(Zip Code)</TD>
</TR>
</TABLE>

<P align="center" style="font-size: 10pt">Registrant&#146;s telephone number, including area code: <B>&nbsp;</B>


<TABLE border="0" width="30%" cellspacing="0" cellpadding="0" style="font-size: 10pt; text-align: center">
<TR>
    <TD width="100%">&nbsp;</TD>
</TR>
<TR>
    <TD nowrap style="border-bottom: 1px solid #000000"><B>77 West Wacker Drive, Suite 3900, Chicago, Illinois 60601<BR></B></TD>
</TR>
<TR>
    <TD nowrap>(Former name or former address if changed since last report.)</TD>
</TR>
</TABLE>

<P align="left" style="font-size: 10pt">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:

<P align="left" style="font-size: 10pt">
<FONT face="Wingdings">&#111;</FONT> Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)<BR><BR>
<FONT face="Wingdings">&#111;</FONT> Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)<BR><BR>
<FONT face="Wingdings">&#111;</FONT> Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))<BR><BR>
<FONT face="Wingdings">&#111;</FONT> Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))<BR>


<P>
<DIV style="width: 100%; border-bottom: 1pt solid black; margin-top: 10pt; font-size: 1pt">&nbsp;</DIV>
<DIV style="width: 100%; border-bottom: 2pt solid black; font-size: 1pt">&nbsp;</DIV>

</DIV>

<P align="center" style="font-size: 10pt">&nbsp;

<P align="center" style="font-size: 10pt; display: none">1
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always">&nbsp;</H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif; margin-left: .25in; width: 7.20in">

<P align="justify" style="font-size: 10pt"><B>ITEM 2.02 RESULTS OF OPERATIONS AND FINANCIAL CONDITION.</B>


<P align="justify" style="font-size: 10pt; text-indent: 4%">On May&nbsp;15, 2009, Prime Group Realty Trust (the &#147;Company&#148;) announced its consolidated financial results for the
first quarter ended March&nbsp;31, 2009. The Press Release will be available on the Company&#146;s Internet website
(www.pgrt.com) and will also be available upon request as specified therein.


<P align="justify" style="font-size: 10pt; text-indent: 4%">Copies of the Company&#146;s first quarter ended March&nbsp;31, 2009 earnings press release is furnished as Exhibit&nbsp;99.1
hereto, and is incorporated herein by reference. The information contained in this current report on Form 8-K,
including Exhibit&nbsp;99.1, shall not be deemed to be &#147;filed&#148; with the Securities and Exchange Commission nor incorporated
by reference into any registration statement filed by the Company under the Securities Act of 1933, as amended, or into
any proxy statement or other report filed by the Company under the Securities Exchange Act of 1934, as amended.


<P align="justify" style="font-size: 10pt"><B>ITEM 8.01 OTHER EVENTS</B>


<P align="justify" style="font-size: 10pt; text-indent: 4%">Effective May&nbsp;4, 2009, the Company moved its corporate headquarters from 77&nbsp;West Wacker Drive, Suite&nbsp;3900,
Chicago, Illinois 60601 to 330 North Wabash Avenue, Suite&nbsp;2800, Chicago, Illinois 60611. Our general phone number of
312-917-1300 remains unchanged, as well as individual e-mail addresses and phone and facsimile numbers.


<P align="justify" style="font-size: 10pt"><B>ITEM 9.01 FINANCIAL STATEMENTS AND EXHIBITS.</B>


<P>
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="4%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">(a)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD><DIV style="text-align: justify">Financial Statements</DIV></TD>
</TR>

</TABLE>


<P align="justify" style="font-size: 10pt; margin-left: 8%">None


<P>
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="4%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">(b)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD><DIV style="text-align: justify">Exhibits:</DIV></TD>
</TR>

</TABLE>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="8%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="87%">&nbsp;</TD>
</TR>
<TR style="font-size: 10pt" valign="bottom">
    <TD nowrap align="left">Exhibit</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center">&nbsp;</TD>
</TR>
<TR style="font-size: 10pt" valign="bottom">
    <TD nowrap align="left" style="border-bottom: 1px solid #000000">No.</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" style="border-bottom: 1px solid #000000">Description</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">99.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Prime Group Realty Trust First Quarter Ended March&nbsp;31, 2009 Earnings
Press Release dated May&nbsp;15,&nbsp;2009</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>

<P align="center" style="font-size: 10pt">&nbsp;

<P align="center" style="font-size: 10pt; display: none">2
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always">&nbsp;</H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif; margin-left: .25in; width: 7.20in">



<P align="center" style="font-size: 10pt"><B>SIGNATURE</B>



<P align="justify" style="font-size: 10pt; text-indent: 4%">Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to
be signed on its behalf by the undersigned hereunto duly authorized.

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="45%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="40%">&nbsp;</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">
&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">PRIME GROUP REALTY TRUST</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top"></TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">
&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">By: <u>/s/ Jeffrey A. Patterson</u></TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">
&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Jeffrey A. Patterson</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Dated: May&nbsp;15, 2009
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">President and Chief Executive Officer</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>

<P align="center" style="font-size: 10pt">&nbsp;

<P align="center" style="font-size: 10pt; display: none">3
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always">&nbsp;</H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif; margin-left: .25in; width: 7.20in">



<P align="center" style="font-size: 10pt"><B>EXHIBIT INDEX</B>


<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="8%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="87%">&nbsp;</TD>
</TR>
<TR style="font-size: 10pt" valign="bottom">
    <TD nowrap align="left">Exhibit</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center">&nbsp;</TD>
</TR>
<TR style="font-size: 10pt" valign="bottom">
    <TD nowrap align="left" style="border-bottom: 1px solid #000000">No.</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" style="border-bottom: 1px solid #000000">Description</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">99.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Prime Group Realty Trust First Quarter Ended March&nbsp;31, 2009 Earnings
Press Release dated May&nbsp;15,&nbsp;2009</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<P align="center" style="font-size: 10pt">&nbsp;

<P align="center" style="font-size: 10pt; display: none">4




</DIV>
</BODY>
</HTML>
[{"type": "8-K", "sequence": "1", "filename": "c85665e8vk.htm", "description": "FORM 8-K", "secsgml_size_bytes": 11411}]
{"company-data": {"conformed-name": "PRIME GROUP REALTY TRUST", "cik": "0001042798", "assigned-sic": "6798", "irs-number": "364173047", "state-of-incorporation": "MD", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "001-13589", "film-number": "09834450"}, "business-address": {"street1": "77 WEST WACKER DR", "street2": "STE 3900", "city": "CHICAGO", "state": "IL", "zip": "60601", "phone": "3129171300"}, "mail-address": {"street1": "77 WEST WACKER DRIVE", "street2": "SUITE 3900", "city": "CHICAGO", "state": "IL", "zip": "60601"}}
Form 8-K
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): May 15, 2009
PRIME GROUP REALTY TRUST
(Exact name of registrant as specified in its charter)
MARYLAND
1-13589
36-4173047
(State or other Jurisdiction of Incorporation)
(Commission File Number)
(IRS Employer Identification No.)
330 North Wabash Avenue, Suite 2800, Chicago, Illinois
60611
(Address of Principal Executive Offices)
(Zip Code)
Registrant's telephone number, including area code:
77 West Wacker Drive, Suite 3900, Chicago, Illinois 60601
(Former name or former address if changed since last report.)
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:
o
Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
o
Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
o
Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
o
Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
ITEM 2.02 RESULTS OF OPERATIONS AND FINANCIAL CONDITION.
On May 15, 2009, Prime Group Realty Trust (the "Company") announced its consolidated financial results for the
first quarter ended March 31, 2009. The Press Release will be available on the Company's Internet website
(www.pgrt.com) and will also be available upon request as specified therein.
Copies of the Company's first quarter ended March 31, 2009 earnings press release is furnished as Exhibit 99.1
hereto, and is incorporated herein by reference. The information contained in this current report on Form 8-K,
including Exhibit 99.1, shall not be deemed to be "filed" with the Securities and Exchange Commission nor incorporated
by reference into any registration statement filed by the Company under the Securities Act of 1933, as amended, or into
any proxy statement or other report filed by the Company under the Securities Exchange Act of 1934, as amended.
ITEM 8.01 OTHER EVENTS
Effective May 4, 2009, the Company moved its corporate headquarters from 77 West Wacker Drive, Suite 3900,
Chicago, Illinois 60601 to 330 North Wabash Avenue, Suite 2800, Chicago, Illinois 60611. Our general phone number of
312-917-1300 remains unchanged, as well as individual e-mail addresses and phone and facsimile numbers.
ITEM 9.01 FINANCIAL STATEMENTS AND EXHIBITS.
(a)
Financial Statements
None
(b)
Exhibits:
Exhibit
No.
Description
99.1
Prime Group Realty Trust First Quarter Ended March 31, 2009 Earnings
Press Release dated May 15, 2009
SIGNATURE
Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to
be signed on its behalf by the undersigned hereunto duly authorized.
PRIME GROUP REALTY TRUST
By:
/s/ Jeffrey A. Patterson
Jeffrey A. Patterson
Dated: May 15, 2009
President and Chief Executive Officer
EXHIBIT INDEX
Exhibit
No.
Description
99.1
Prime Group Realty Trust First Quarter Ended March 31, 2009 Earnings
Press Release dated May 15, 2009