Texas Capital Bancshares (TCBI) S-8 Registration of securities for employees

Exhibit 23.1

Consent of Independent Registered Public Accounting Firm

We consent to the incorporation by reference in the Registration Statement (Form S-8) of Texas Capital Bancshares, Inc. for the registration of 400,000 shares of common stock pertaining to the 2006 Employee Stock Purchase Plan and 1,500,000 shares of common stock pertaining to the 2005 Long-Term Incentive Plan of our reports dated March 8, 2005, with respect to the consolidated financial statements of Texas Capital Bancshares, Inc. included in its Annual Report on Form 10-K for the year ended December 31, 2004, Texas Capital Bancshares, Inc. management’s assessment of the effectiveness of internal control over financial reporting, and the effectiveness of internal control over financial reporting of Texas Capital Bancshares, Inc. filed with the Securities and Exchange Commission.

/s/ ERNST & YOUNG LLP  

Dallas, Texas
February 3, 2006