Bexar County imposes no anti-mansionization or floor-area-ratio caps in unincorporated areas, with new home size limited only by deed restrictions, HOA covenants, and Texas Local Government Code 232 subdivision regulations, since Texas counties have very limited residential zoning authority.
Unlike California and Northeast jurisdictions, Texas counties may not impose general residential zoning under Texas Local Government Code 240, leaving no statutory tool for floor-area ratios, lot coverage caps, or daylight-plane rules. Bexar County subdivision plats may include developer-imposed minimum and maximum building sizes that bind through deed restrictions enforceable by HOAs or neighbors under Texas Property Code 202. Some platted subdivisions reference International Residential Code height limits. Edwards Aquifer Recharge Zone properties face additional impervious-cover caps under TCEQ Edwards Rules (30 TAC 213) that effectively constrain mansion footprints.
Deed restriction breach: civil suit and injunction by HOA or neighbors; Edwards Aquifer impervious cover exceedance: TCEQ enforcement up to $25,000 per day; subdivision-plat building line violation: certificate of occupancy denial.
See how Universal City's anti-mansionization rules stack up against other locations.
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