Accessory Structures in Leander, TX (2026)
5 verified accessory structures rules for Leander, Texas, sourced directly from the municipal code and official government pages.
Verified from official government sources
ADU Rules
Leander's Composite Zoning Ordinance allows an accessory dwelling with a minimum of 400 square feet and a maximum of 900 square feet of living area, or 40% of the primary dwelling, whichever is greater. On lots over three acres there is no size cap. Whether an ADU is allowed depends on the lot's site component.
Leander Accessory Dwelling Units (ADUs)
Some RestrictionsShed Rules
Leander's zoning ordinance (Article IV, Section 5) exempts accessory buildings 120 square feet or smaller from a building permit. Enclosed accessory buildings are barred from the front and side of the main house, the rear setback may be reduced to 5 feet, and structures must sit at least 3 feet from any other building. Height is capped near 15 feet.
Leander Sheds and Accessory Buildings
Some RestrictionsGarage Conversions
In Leander's zoning ordinance, an enclosed garage is treated as part of the primary building even if detached. Converting a garage alters the main dwelling and must keep the lot's required garage-enclosed parking. If the converted space becomes a separate living unit with a kitchen, it is regulated as an accessory dwelling (400-900 sq ft) and needs a building permit.
Leander Garage Conversions
Some RestrictionsCarport Rules
Leander's zoning ordinance treats carports as unenclosed canopies. In residential districts, an unenclosed canopy (including a carport) that covers a paved parking surface may be located to the side or rear of the main building. Carports must follow accessory-structure placement and spacing rules, and structures over 120 square feet require a building permit.
Leander Carports
Some RestrictionsTiny Homes
Leander is unusual in having a dedicated 'TH – Tiny House' zoning use component. A tiny house must be 140 to 700 square feet of living area, be a permanent structure on a permanent foundation, and connect to city water and wastewater. One tiny house is allowed per lot, with multiples up to 8 units per acre in tiny-house zoning.
Leander Tiny Homes
Some RestrictionsLooking for Williamson County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Leander city rules.
Accessory Structures in Williamson County →