Before You Build in Leander, TX: Permit & Rule Checklist (2026)

Leander's zoning ordinance caps fences along a common property boundary at eight feet. Front-yard fences in single-family and two-family districts are limited to three feet, and a sight-triangle rule restricts fences near street intersections.

Leander's zoning ordinance exempts fence construction from a site development permit, and fences not over seven feet are exempt from a building permit under the adopted 2021 IRC. A retaining wall, however, is not exempt and requires review.

Leander's zoning ordinance governs fences on common property boundaries (eight-foot max) and finished-side orientation, but cost-sharing and ownership disputes between neighbors are matters of Texas civil law, not a city ordinance.

Unlike fences, retaining walls in Leander are not exempt from permit review. A retaining wall four feet or higher is treated as a structure, and the adopted 2021 building codes require a permit and guardrails for taller walls.

Leander does not publish an exhaustive approved-materials list for fences, but Article VI, Section 16 sets specific material rules: no residential barbed wire (with exceptions), coated chain link for non-single-family uses, and structurally sound construction on concrete footings.

Leander requires a building permit for any swimming pool, reviewed by Development Services under the City's adopted 2021 codes (IRC, IECC, ISPSC) and 2023 NEC. Plans go through plan review, fees are paid, then Building and Fire Final inspections are scheduled.

Leander Code Sec. 3.03.042 requires every outdoor pool to be enclosed by a device at least 4 feet (48 inches) high with no opening passing a 6-inch sphere, and self-closing/self-latching gates. Chain-link is prohibited for new pool enclosures built after Jan 1, 1994. The submittal packet specifies a 54-inch self-latching gate.

Beyond the barrier, Leander requires audible alarms on any house door leading to the pool (separate from the home security system), self-closing/self-latching gates, and compliance with the 2021 ISPSC. Pools must be located to the rear of the residence and pool equipment screened from view.

Above-ground pools in Leander require a building permit and the same safety barrier as in-ground pools: a minimum 4-foot fence, a 54-inch self-latching gate, and alarms on doors leading from the house to the pool. Plans showing the pool's location to property lines and PUEs must be submitted.

Leander regulates hot tubs and spas under its adopted 2021 International Swimming Pool and Spa Code and 2021 IRC Appendix G (Swimming Pools, Hot Tubs and Spas). Spas are addressed within the pool submittal process; electrical work follows the 2023 NEC, and barrier rules in Sec. 3.03.042 apply to outdoor pools.

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.

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'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'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 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.

Outdoor burning, including open recreational fire pits, is prohibited within Leander city limits under Ordinance 13-038-00 (Chapter 5, Article 5.05). Only outdoor cooking in a covered grill or smoker is recognized inside the city. Open campfires, bonfires and brush fires are allowed only outside city limits with fire department authorization and no active burn ban.

Outdoor burning is prohibited within Leander city limits under Ordinance 13-038-00 (Article 5.05). Certain materials, including plastics, treated lumber, heavy oils, asphalt products, rubber and chemical wastes, can never be burned anywhere, and burning domestic waste is barred where trash service is available. Burning is allowed only outside city limits with authorization and no active burn ban.

Leander does not impose a general permit requirement for routine trimming of healthy trees on private residential property. The city's tree rules focus on preservation and removal of Significant and Heritage Trees during development, and on maintaining clear visibility at street intersections.

Leander protects Significant Trees (8+ caliper inches) and Heritage Trees through its Site Standards. Removing protected trees, especially during development, triggers preservation requirements, mitigation at set caliper-inch ratios, and fees. A separate Tree Removal Request process applies.

Leander enforces a Water Conservation and Drought Contingency Plan with year-round and stage-based limits. Phase 2 caps landscape irrigation at one day a week, midnight-7 a.m. or 7 p.m.-midnight, on a day set by the address's ending digit. Code Enforcement issues warnings then citations.