Houston Police Department Headquarters (Houston Natural Gas Building) 1200 Travis Street Google Map Architect Lloyd Morgan and Jones Year Built 1967 Building Type Commercial Neighborhood Downtown Quadrant SE Status Endangered Description Coming Soon. Related Mods Total Plaza (United Gas Building / Entex Building) 1201 Louisiana Street Year Built 1972 Learn More 6206 Ella Lee 6206 Ella Lee Year Built 1955 Learn More Ashland Chemical Company Research Laboratory 13401 Katy Freeway Year Built 1962 Learn More