Swimming Pools & Spas in Middlesex County, MA (2026)

3 county-level rules, plus city-specific rules for 5 cities in Middlesex County, Massachusetts.

Verified from official government sources

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

Pool Permits

Swimming pools in Middlesex County require a building permit under 780 CMR and an electrical permit for any pool over 24 inches deep, plus compliance with MGL c.148 Fire Code and VGB Act for public pools.

Swimming Pool Permits in Middlesex County

Heavy Restrictions

Full ordinance details →Official source ↗

Fencing Requirements

Middlesex County, MA has no county-level pool fence rules. Massachusetts is a home-rule state and pool barriers are governed by state code (780 CMR Appendix G / IRC AG105 and 105 CMR 435), enforced by each town's building inspector. Statewide minimum: 48-inch barrier, self-closing/self-latching gate, 4-inch sphere rule.

Pool Barrier Rules in Middlesex County, MA

Some Restrictions

Section 206

Section 206: Public and semipublic outdoor inground swimming pools; enclosures; safety equipment; inspection; violations; penalty Section 206. Every public and semipublic outdoor inground swimming pool shall be enclosed by a fence six feet in height and firmly secured at ground level provided that any board or stockade fence or structure shall be at least five feet in height, but if over five f...

Full ordinance details →Official source ↗

Hot Tub Rules

Hot tubs and spas in Middlesex County require electrical permits under 527 CMR 12, building permits for permanent installations, and lockable safety covers meeting ASTM F1346 per Massachusetts State Building Code.