5 county-level rules, plus city-specific rules for 1 city in Davidson County, Tennessee.
Verified from official government sources
Metro Nashville requires a building permit for all in-ground pools, above-ground pools over 24 inches deep, spas, and permanent hot tubs under Metro Code §16.04 and the 2018 IRC/2021 ISPSC adopted by Tennessee. Metro Codes Department plan review covers setbacks, electrical (GFCI), drainage, and barrier compliance. Final inspection required before filling. Temporary/inflatable pools under 24 inches exempt.
All residential pools in Davidson County must be enclosed by a barrier at least 48 inches high with self-closing, self-latching gates. Pool alarms (≥50 dB) are required for pools built in 2011 or later.
Davidson County residential pools require building permits and Metro Codes inspections. The Metro Nashville Public Health Department separately regulates public and semi-public pools. Anti-entrapment suction fittings and proper bonding/grounding are required.
Above-ground pools extending over 12 inches require a permit in Davidson County. Setbacks are at least half the zoning district's required setback (minimum 3 feet). Full barrier and pool alarm requirements apply.
Metro Nashville requires an electrical permit for hot tub 240V circuits. Lockable hardcover meeting ASTM F1346 can substitute for perimeter barrier under IRC Appendix G. Must meet 5-foot rear setback.
1 cities in Davidson County have their own swimming pools & spas rules. Each link goes to that city's dedicated page with code citations.
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