TX SB15

Prohibits municipalities with populations over 150,000 (in counties over 300,000) from requiring residential lots to be larger than 3,000 square feet, wider than 30 feet, or deeper than 75 feet for new developments on unplatted tracts of 5+ acres zoned for single-family homes

Limits municipal regulations on "small lots" (4,000 square feet or less), prohibiting requirements for setbacks greater than 15 feet front/10 feet back/5 feet side, covered parking, more than one parking space per unit, more than 30% open space, or fewer than three stories

Exempts areas within 1 mile of certain law enforcement training centers, 3,000 feet of airports/military bases, and 15,000 feet of military bases with airport overlay zone designations

Allows affected persons or housing organizations to sue municipalities for violations, with courts authorized to issue declaratory judgments, mandamus writs, and injunctions, with attorney's fees awarded to prevailing claimants

Takes effect September 1, 2025, and does not affect homeowners' association rules, deed restrictions, short-term rental regulations, or requirements related to flooding, sewer facilities, or aquifer protection