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

Lewisville does not regulate fence placement between neighbors beyond zoning setback and height requirements. Texas is not a shared-fence-cost state. The finished side of the fence has no mandatory facing direction under city code. Property line disputes are civil matters.

Lewisville requires a building permit for retaining walls exceeding 4 feet in height measured from the bottom of the footing to the top of the wall. Engineered plans are required for taller walls. Retaining walls near Lewisville Lake floodplain areas face additional review.

Lewisville does not require a building permit for standard residential fences under 8 feet in height. Fences over 8 feet, fences with masonry or stone columns, and fences in floodplain areas require a permit. A survey or plat may be required to confirm property lines.

Lewisville requires all residential swimming pools, spas, and hot tubs to be enclosed by a barrier at least 48 inches in height with self-closing, self-latching gates under the adopted International Swimming Pool and Spa Code (ISPSC). Barrier must be installed before the pool is filled.

Lewisville limits residential fences to 4 feet in front yards and 8 feet in side and rear yards under the zoning ordinance Ch. 18. Corner lots have additional sight triangle restrictions. Commercial and industrial fences may be up to 8 feet.

Lewisville pools must meet drain entrapment prevention standards and TX H&S Code Chapter 757 requirements. GFCI protection is required within 20 feet of the pool.

Lewisville requires a building permit for swimming pool construction and installation. All residential pools must comply with barrier (fencing) requirements under the city building code and the International Residential Code. Electrical work requires a separate electrical permit and inspection.

Above-ground pools holding water 18 inches or deeper need a building permit and 48-inch barriers in Lewisville. Pool walls 48 inches or taller may serve as the barrier.

Lewisville requires pool barriers at least 48 inches high with self-closing, self-latching gates per TX Health and Safety Code Chapter 757. A building permit is required.

Hot tubs in Lewisville require an electrical permit and GFCI protection. Spas without a locking safety cover meeting ASTM F1346 must have a 48-inch barrier enclosure.

Garage conversions in Lewisville require a building permit and must maintain the minimum enclosed parking spaces required by the zoning district.

Lewisville allows ADUs in certain residential zones. Units must be subordinate to the primary dwelling, meet setbacks, and cannot be sold separately. Permits required.

Sheds under 120 square feet in Lewisville generally do not need a building permit but must meet setback rules. Larger structures require permits. Rear yard placement only.

Carports in Lewisville require a building permit and must comply with setback requirements. They are generally allowed in side or rear yards but not front yards.

Tiny homes on permanent foundations in Lewisville must meet minimum dwelling size and building code requirements. Tiny homes on wheels are classified as RVs.

Lewisville allows gas or contained wood-burning fire pits at least 15 feet from structures. Open burning is prohibited within city limits under TCEQ rules.

Lewisville prohibits open burning within city limits under Ord. 3057 and the International Fire Code as adopted. Recreational fires in approved containers are permitted with restrictions. The Lewisville Fire Department enforces burn bans issued by Denton County during drought conditions.

Lewisville enforces year-round twice-per-week watering schedules for landscape irrigation. Water is supplied from Lewisville Lake via the Upper Trinity Regional Water District. During drought, the city escalates to Stage 1-4 restrictions with progressively stricter limits and fines up to $2,000.

Lewisville has a tree preservation ordinance that protects certain mature trees from removal during development. Residential property owners removing protected trees on developed lots may need approval from the city. Replacement or mitigation may be required.

Lewisville requires property owners to trim trees that overhang public sidewalks and streets to maintain clearance. Dead or hazardous limbs must be removed to prevent property damage or injury. The city trims trees in public rights-of-way.