National Map >  Region 7: Greater Southwest >  Texas >  District 25 > TX1950 HELP GSA Building Stats   816 CONGRESS 816 CONGRESS AUSTIN , TX 78701-2442 For information on properties in Region 7, contact: Patti Tilson 817-978-2703 817-978-2703 patti.tilson@gsa.gov Representative: Doggett, Lloyd  (D)  Representative URL: http://www.house.gov/doggett/ Senator: Cornyn, John (R) Senator URL: http://cornyn.senate.gov/ Senator: Hutchison, Kay Bailey (R) Senator URL: http://hutchison.senate.gov/ Lease Details Lease Code Initial Effective Date Expiration Date Rentable Sq Feet Status LTX14078 9/1/1994 8/31/2014 31576 Active   Square Footage Building Rentable SF: 31576 Leased Rentable SF: 31576 Available Space: 0