Atlanta, GA -September 28, 2011 - Piedmont Office Realty Trust (NYSE: PDM), an owner of Class A properties located primarily in the ten largest U.S. office markets, today announced that the Company will release its third quarter 2011 financial results on Thursday, November 3,  2011, after the close of trading on the New York Stock Exchange.  An audio webcast and a conference call are scheduled for Friday, November 4, 2011, at 10:00 a.m. Eastern time.  During the audio webcast and conference call, the Company's management team will review third quarter performance, discuss recent events and conduct a question-and-answer period.

To Listen to the Audio Webcast:
Click on the webcast link under the Investor Relations section of the Company's website at www.piedmontreit.com.

To Participate in the Telephone Conference Call:
Dial in at least five minutes prior to start time.
Domestic:  (877) 407-3982
International:  (201) 493-6780
Conference ID:  380070

To Listen to the Webcast Replay:
Click on the webcast link under the Investor Relations section of the Company's website at www.piedmontreit.com.

To Listen to the Conference Call Playback:
Domestic:  (877) 870-5176
International:  (858) 384-5517
Passcode:  380070
The playback can be accessed through November 18, 2011.

To Submit a Question:
Investors interested in submitting a question to the Company prior to the call should send their questions to the following email address: askpiedmont@piedmontreit.com. Company management will attempt to answer as many questions as time allows on the conference call.

About Piedmont Office Realty Trust

Piedmont Office Realty Trust, Inc. is a fully-integrated and self-managed real estate investment trust ("REIT") specializing in the acquisition, ownership, management, development and disposition of primarily high-quality Class A office buildings located predominantly in large U.S. office markets and leased principally to high-credit-quality tenants.  Since its first acquisition in 1998, the Company has acquired $5.8 billion and sold over $1.1 billion of office and industrial properties through June 30, 2011. Rated as an investment-grade company by Standard & Poor's and Moody's, Piedmont has maintained a low-leverage strategy while acquiring its properties.

Research Analysts Contact:
Eddie Guilbert
770-418-8592
research.analysts@piedmontreit.com

Transfer Agent Services Contact:
The Bank of New York Mellon
866-354-3485
investor.services@piedmontreit.com

Investor Relations Firm Contact:
ICR, Inc.
Nikki Sacks
203-682-8263
Nikki.Sacks@icrinc.com