Swimming Pools & Spas in Williamson County, TN (2026)

2 county-level rules, plus city-specific rules for 1 city in Williamson County, Tennessee.

Verified from official government sources

Note: These county rules apply to unincorporated areas of Williamson County. If you live within an incorporated city, that city's own rules apply: see the city list below.

Pool Permits

An above-ground pool holding more than 30 inches of water needs a permit in unincorporated Williamson County. The pool wall can replace a fence only if it stands four feet above grade all around and the ladder is secured, locked, or removable.

Williamson County Above-Ground Pool Rules

Some Restrictions

Williamson County, TN, Zoning Ordinance Sec. 11.04(g)

The sides of an above-ground swimming pool may constitute compliance with the fencing standard if (a) the entire area around the outside of the pool measures four (4) feet from ground (finished grade) level to the top of the pool, and (b) The ladder or steps can be secured, locked, or removed to prevent unauthorized access to the pool.

Full ordinance details →Official source ↗

Fencing & Safety Requirements

Williamson County requires every swimming pool in the unincorporated county to be enclosed by a fence at least four feet high with self-closing, self-latching gates that swing away from the pool. The fence must sit within four inches of finished grade and have no gaps wide enough to pass a four-inch sphere. Above-ground pools can substitute their own walls if they meet the same height.

Williamson County Pool Fencing Requirements

Some Restrictions

Williamson County, TN, Zoning Ordinance § 11.04(D)(13)

Swimming pools as an accessory use shall be fenced as a safety precaution and shall meet the following specifications. a) The fence shall be a minimum of four feet high and shall encompass the pool area to prevent unauthorized entry. b) The bottom of the fence shall be constructed no more than four inches from the ground (finished grade) level. c) Openings in the fence shall not permit the pass...

Full ordinance details →Official source ↗

Swimming Pools & Spas by City in Williamson County

1 cities in Williamson County have their own swimming pools & spas rules. Each link goes to that city's dedicated page with code citations.

FranklinPop. 83,454

2 verified rules • Fencing & Safety Requirements, Pool Permits

All Williamson County ordinances

See every category we cover for Williamson County: parking, noise, fences, fires, animals, pools, and more.

Williamson County Ordinance Hub →