Fairfax County, VA Swimming Pools & Spas: Pool Permits (2026)

Under the Virginia Uniform Statewide Building Code (13VAC5-63), Fairfax County Land Development Services requires a building permit for any swimming pool, spa, or hot tub with a surface area greater than 150 sq ft, capacity over 5,000 gallons, or depth of 24 inches or more. A separate electrical permit is required for lighting, outlets and circulating equipment, and a plumbing or mechanical permit is required for fuel-fired heaters. All outdoor pools, spas and hot tubs must be enclosed by a barrier that meets the International Swimming Pool and Spa Code Section 305 as adopted by the USBC: minimum 48-inch height, openings that prevent passage of a 4-inch sphere, gates self-closing and self-latching opening away from the pool, and ground clearance of 2 inches over grass or 4 inches over hard surfaces. The Fairfax County Health Department does not regulate private residential pools. Pool setbacks vary by zoning district under Zoning Ordinance Chapter 112 Article 5; well and septic separations are typically 20 feet. Building fees increased 12.5% effective July 1, 2025; confirm current fees with Fairfax County Land Development Services at 703-222-0801.