National Map >  Region 7: Greater Southwest >  Texas >  District 03 > TX2343 HELP GSA Building Stats   500 NORTH CENTRAL EXPRESSWAY 500 NORTH CENTRAL EXPRESSWAY PLANO , TX 75074-6772 For information on properties in Region 7, contact: Patti Tilson 817-978-2703 817-978-2703 patti.tilson@gsa.gov Representative: Johnson, Sam  (R)  Representative URL: http://www.house.gov/samjohnson/ 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 LTX15488 9/1/2004 8/31/2014 5348 Active   Square Footage Building Rentable SF: 5348 Leased Rentable SF: 5348 Available Space: 0