Relating to county regulation related to infrastructure planning for subdivisions and county authority to regulate building and set-back lines.

HB 3892 limits county regulatory authority over subdivision development in Texas. It prohibits counties from regulating aspects like minimum lot sizes, building floor space ratios, or the number of residential units per acre (density restrictions). The bill allows counties to establish reasonable building set-back lines and lot frontage standards only on *existing* county roads, not new roads, with specific limits (25 feet for regular roads, 50 feet for major highways). This directly affects how counties can plan and regulate new residential subdivisions and infrastructure. The bill was introduced by Representative Bell and failed to pass in the 2025 legislative session.