The Spectrum Center is located at 4100 Westheimer, Suite 233, Houston, Texas 77027. (For recorded directions, call 713-840-8957, ext. 3.) After 5 p.m. and on weekends, you may park in both visitor parking and tenant parking. Please avoid spaces marked for a particular company. Before 5 p.m., please use visitor parking only. Look for Suite 233 on the second floor to the left of the stairs.