Thomas Properties 8-K Thomas Properties Group, Inc. Announces “At the Market” Equity Offering

Exhibit 23.1

We hereby consent to the filing of this opinion as Exhibit 5.1 to the Current Report on Form 8-K filed by the Company relating to the Registration Statements on Form S-3 (Reg. No. 333-152152) (the “Registration Statement”), filed by the Company to effect the registration of the Shares under the Act, and to the reference to Jones Day under the caption “Legal Matters” in the prospectus constituting a part of such Registration Statement. In giving such consent, we do not thereby admit that we are included in the category of persons whose consent is required under Section 7 of the Act or the rules and regulations of the Securities and Exchange Commission promulgated thereunder.

Very truly yours,

/s/ Jones Day