Thomas Properties Group Achieves Record Occupancies at Three Houston Office Properties.

HOUSTON -- Thomas Properties Group, Inc. (Nasdaq:TPGI) has posted record high occupancies of more than 98 percent at three of its Houston office properties, which total more than three million square feet of premier Class A space. The Houston properties are owned by TPG/CalSTRS, a joint venture investment between Thomas Properties Group and the California State Teachers' Retirement System.

"These exceptional leasing results are reflective of the quality of the properties, their outstanding locations and our commitment to providing the highest level of service to our tenants," said James A. Thomas, chairman and CEO, Thomas Properties Group. "We also credit TPG - Colvill, our alliance with Colvill Office Properties, which has provided us with a strong local leasing team to achieve this success."

Thomas Properties' top performing Houston office developments are:

San Felipe Plaza - A 46-story, 980,472-square foot tower in the Galleria submarket, San Felipe Plaza is now 99 percent leased, an historic high for this building. Thomas Properties Group acquired the building in 2005 and has since increased occupancy from 87 percent to 99 percent. The TPG - Colvill leasing team has completed transactions totaling more than 629,101 square feet including a lease with Pride International for 167,036 square feet, Lockton Companies for 75,000 square feet, and The Hanover Company for 60,000 square feet. Charles Fertitta of Moody Rambin represented Pride International. Jeffrey Hayes with New Quest Properties and Charles Fertitta with Moody Rambin represented Lockton Companies. Scott Wegmann of Cushman & Wakefield represented The Hanover Company.

2500 CityWest - This 25-story, 578,284-square foot tower in the Westchase submarket is now 98 percent leased. Thomas Properties Group acquired the building in 2005 and has boosted occupancy from 82 percent to 98 percent. The TPG - Colvill leasing team has completed more than 335,353 square feet of lease transactions, which represents more than 58 percent of the building. Among the largest leases were Horizon Offshore for 69,700 square feet, Loomis Fargo for 30,000 square feet, and TGS Nopec for 27,000 square feet. Mark O'Donnell of Studley represented Horizon, Brian Steelman of The Staubach Company represented Loomis Fargo, and Jon Silberman of NAI Houston represented TGS Nopec.

CityWestPlace - This four-building complex, a distinctive office campus totaling almost 1.5 million square feet of space, was acquired by Thomas Properties Group in June 2006. The firm repositioned the former BMC Campus as CityWestPlace, highlighting its premier location in the popular CityWest area of the Westchase market, and it is now 98 percent leased. Within 12 months following acquisition of the campus by Thomas Properties Group, TPG - Colvill completed more than 400,770 square feet of transactions including leases with StatOil for 150,000 square feet, Aker Kvaerner for 75,000 square feet, Halliburton for 51,000 square feet and GX Technology for 46,000 square feet. Tim Relyea of Cushman & Wakefield represented StatOil, Bill Boyer of CBRE represented Aker Kvaerner, Dan Bellow and Mike Boehler of The Staubach Company represented Halliburton, and Mike Boehler of The Staubach Company represented GX Technology.

The Thomas Properties Group acquisition of CityWestPlace included 29 acres of surrounding land entitled for commercial development. In light of the strong leasing activity at this location and its other Houston properties, the company is currently evaluating the development of four additional buildings at CityWestPlace, representing an additional 1.5 million square feet of world-class office space.

"At all three properties these leasing results have solidified Thomas Properties' position and success in its Houston portfolio," observed Chip Colvill, president, Colvill Office Properties. "Our team has worked hand-in-hand with Thomas executives to attract leading companies and achieve these top occupancies in the dynamic Houston market.

"We are now turning our focus to Brookhollow Central, Thomas Properties Group's three-building complex at the West Loop and 290. Our team is working closely with TPG to confirm the scope of building renovations that we believe will prove to be compelling for new and existing tenants," he added.

The Colvill leasing team representing Thomas Properties Group in Houston includes Colvill, Michael Anderson, and Win Haggard.

About Thomas Properties Group

Thomas Properties Group, Inc., based in Los Angeles, is a full-service real estate company that owns, acquires, develops and manages primarily office, as well as mixed-use and residential properties on a nationwide basis. The company's primary areas of focus are the acquisition and ownership of premier properties, both on a consolidated basis and through its strategic joint ventures, property development and redevelopment, and property management activities. The company seeks to capitalize on opportunities for above-average risk-adjusted investment returns from real estate ownership, while managing the volatility associated with the real estate industry through joint-venture ownership structures. For more information on Thomas Properties Group, Inc., visit www.tpgre.com.

Forward-Looking Statements:

Statements made in this press release that are not historical may contain forward-looking statements. Although Thomas Properties Group, Inc. believes the expectations reflected in any forward-looking statements are based on reasonable assumptions, these statements are subject to numerous risks and uncertainties. Factors that could cause actual results to differ materially from the company's expectations include actual and perceived trends in various national and economic conditions that affect global and regional markets for commercial real estate services, including interest rates, the availability of credit to finance commercial real estate transactions, and the impact of tax laws affecting real estate. For a discussion of some of the factors that may cause our results to differ from management's expectations, see the information under the captions "Risk Factors" and "Management's Discussion and Analysis of Financial Condition and Results of Operations - Factors That May Influence Future Results of Operations" in our 10- K for the year ended December 31, 2006, as amended, and contained in the company's reports on Form 10- Q for fiscal quarters during 2007, which have been filed with the SEC. Thomas Properties Group, Inc. disclaims any intention or obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise.