Building Setbacks & Zoning in Allen, TX (2026)
3 verified building setbacks & zoning rules for Allen, Texas, sourced directly from the municipal code and official government pages.
Verified from official government sources
Setback Rules
Allen residential setbacks vary by zone: SF-E 30 ft front/15 ft rear/10 ft side; SF-7 25 ft front/20 ft rear/7 ft side; TH 20 ft front/15 ft rear. Corner lots need 15 ft side-street setback.
Building Setbacks: Setback Rules
Some RestrictionsStructure Height Limits
Allen limits residential structures to 35 feet or 2.5 stories in most single-family districts. Accessory structures capped at 15 feet. Commercial heights vary 35-75 feet; downtown core permits up to 100 feet with site plan approval.
Building Setbacks: Structure Height Limits
Some RestrictionsLot Coverage Limits
Allen limits lot coverage by all buildings to 40-50% in most single-family districts. Impervious surface (buildings plus driveways plus patios) capped at 65-75% depending on zone. Corner and cul-de-sac lots may have bonus coverage.
Building Setbacks: Lot Coverage
Some RestrictionsLooking for Collin County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Allen city rules.
Building Setbacks & Zoning in Collin County →