Bexar County has no countywide heat island ordinance. Cool-roof and cool-pavement choices remain voluntary, supported through CPS Energy rebates and the City of San Antonio's separate climate plan rather than county code.
South Texas summers regularly exceed 100 degrees, and urbanized portions of Bexar County experience documented heat island intensification. The county itself has not adopted a binding heat island mitigation ordinance for unincorporated land. Voluntary tools include CPS Energy cool-roof and weatherization rebates, county facility procurement preferences for higher solar reflectance index materials on new public buildings, and tree-canopy partnerships with the Bexar County Hill Country Conservancy. Builders in unincorporated areas should follow the locally adopted International Residential Code, which addresses radiant barrier and insulation but does not mandate cool roofs.
There are no penalty provisions; participation is incentive-based through CPS Energy programs and county facility specifications.
See how Universal City's heat island mitigation rules stack up against other locations.
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