www.envisionreports.com/PDM Step 1: Go to www.envisionreports.com/PDM to view the materials. Step 2: Click on Cast Your Vote or Request Materials. Step 3: Follow the instructions on the screen to log in. Vote by Internet • Go to www.envisionreports.com/PDM • Or scan the QR code with your smartphone • Follow the steps outlined on the secure website Stockholder Meeting Notice 02IC4C + + Important Notice Regarding the Availability of Proxy Materials for the Piedmont Office Realty Trust, Inc. Stockholder Meeting to be Held on May 18, 2017 Under Securities and Exchange Commission rules, you are receiving this notice that the proxy materials for the annual stockholder meeting are available on the Internet. Follow the instructions below to view the materials and vote online or request a copy. The items to be voted on and location of the annual meeting are on the reverse side. Your vote is important! This communication presents only an overview of the more complete proxy materials that are available to you on the Internet. We encourage you to access and review all of the important information contained in the proxy materials before voting. The proxy statement and annual report to stockholders are available at: : Easy Online Access — A Convenient Way to View Proxy Materials and Vote When you go online to view materials, you can also vote your shares. Step 4: Make your selection as instructed on each screen to select delivery preferences and vote. When you go online, you can also help the environment by consenting to receive electronic delivery of future materials. Obtaining a Copy of the Proxy Materials – If you want to receive a copy of these documents, you must request one. There is no charge to you for requesting a copy. Please make your request for a copy as instructed on the reverse side on or before May 8, 2017 to facilitate timely delivery. .. IMPORTANT ANNUAL MEETING INFORMATION 2 N O T

Here’s how to order a copy of the proxy materials and select a future delivery preference: Paper copies: Current and future paper delivery requests can be submitted via the telephone, Internet or email options below. Email copies: Current and future email delivery requests must be submitted via the Internet following the instructions below. If you request an email copy of current materials you will receive an email with a link to the materials. PLEASE NOTE: You must use the number in the shaded bar on the reverse side when requesting a set of proxy materials. g Internet – Go to www.envisionreports.com/PDM. Click Cast Your Vote or Request Materials. Follow the instructions to log in and order a copy of the current meeting materials and submit your preference for email or paper delivery of future meeting materials. g Telephone – Call us free of charge at 1-866-641-4276 and follow the instructions to order a paper copy of the materials by mail for the current meeting. You can also submit a preference to receive a paper copy for future meetings. g Email – Send an email to investorvote@computershare.com with “Proxy Materials Piedmont Office Realty Trust, Inc.” in the subject line. Include in the message your full name and address, plus the number located in the shaded bar on the reverse, and state in the email that you want a paper copy of current meeting materials. You can also state your preference to receive a paper copy for future meetings. To facilitate timely delivery, all requests for a paper copy of the proxy materials must be received by May 8, 2017. . Stockholder Meeting Notice Dear Piedmont Office Realty Trust, Inc. Stockholder: The 2017 Annual Meeting of Stockholders of Piedmont Office Realty Trust, Inc. (the “Company”) will be held at the The Metropolitan Club, 5895 Windward Pkwy # 100, Alpharetta, GA 30005, on May 18, 2017, at 11:00 a.m. (eastern daylight time). Proposals to be considered at the Annual Meeting: (1) Election of eight directors; (2) Ratification of the appointment of the independent registered public accounting firm for fiscal 2017; (3) Advisory approval of executive compensation; (4) Advisory vote on the frequency of future votes on our executive compensation; and (5) Approval of our Amended and Restated 2007 Omnibus Incentive Plan. Your Board of Directors recommends a vote “FOR ALL” on Item 1, “FOR” Items 2, 3 and 5, and for “ANNUALLY” on Item 4. The Board of Directors has fixed the close of business on March 9, 2017 as the record date for the determination of stockholders entitled to receive notice of and to vote at the Annual Meeting or any adjournment(s) thereof. Stockholders of record as of the record date are encouraged and cordially invited to attend the Annual Meeting. Directions to attend the Annual Meeting where you may vote in person can be found at: www.themetropolitanclub.net/directions.php PLEASE NOTE – YOU CANNOT VOTE BY RETURNING THIS NOTICE. To vote your shares you must vote online or request a paper copy of the proxy materials to receive a proxy card. If you wish to attend and vote at the meeting, please bring this notice with you. 02IC4C