Swimming pool permit rules in Nashua, NH — also covering above-ground pools, in-ground pools, and spa installations — set fencing, barrier, alarm, and inspection requirements.
Residential swimming pool permits in Nashua are issued by the Department of Building Safety under NRO Chapter 105, which adopts the 2021 International Building Code, 2021 International Residential Code, and 2021 International Swimming Pool and Spa Code per New Hampshire's State Building Code (RSA 155-A, as updated by HB 1681 effective December 31, 2024). NRO Sec. 105-22.A.(2) treats 'in-ground swimming pools' as part of the building permit fee schedule (residential at $0.18 per square foot, $50 application fee). Electrical permits for in-ground pools cost $60 per NRO Sec. 105-22.C.(1)(g). Public pools are also regulated by NH DES under RSA 485-A:26 and Env-Wq 1100 per NRO Sec. 105-26.B.
NRO Sec. 105-25 (Adoption of Swimming Pool and Spa Code), enacted by Ordinance O-21-045, adopts the ISPSC 'as per the New Hampshire State Building Code per RSA 155-A and as published by the International Code Council, Inc., and any amendments adopted thereto.' NRO Sec. 105-22.A.(2) provides: 'New buildings, additions, alterations, mobile homes, in-ground swimming pools, basements, connecting structures, future expansion areas and areas capable of being used as living or occupiable space shall be included to calculate aggregate floor area: (a) Residential - 1 & 2 Family and Townhouses (per square foot of area affected): $0.18.' NRO Sec. 105-22.A.(1)(a) sets the building permit application fee at $50. NRO Sec. 105-22.C.(1)(g) Residential Electrical provides 'Pools (in-ground): $60.' NRO Sec. 105-26.B amends ISPSC Sec. 101.1 to add: '101.1.1 Public Swimming Pools and Spas shall also be regulated by NH DES Public Pool and Spa Program in accordance with RSA 485-A:26 and Env-Wq 1100 Public Bathing Place.' NRO Sec. 105-22.A.(14) imposes a 100% surcharge (max $275 residential / $750 commercial) for permits issued after construction started without a permit. Appeals of the Building Official follow NRO Sec. 105-5 per NRO Sec. 105-26.F. Department of Building Safety: 229 Main Street, 2nd Floor, Nashua NH 03060; phone 603-589-3080; email BuildingDepartment@nashuanh.gov.
Installing an in-ground swimming pool without a building permit and electrical permit from the Department of Building Safety violates NRO Sec. 105-22 and NRO Sec. 105-25 (ISPSC), and is subject to a 100% fee surcharge under NRO Sec. 105-22.A.(14). Building or operating a pool that does not pass barrier inspection violates the adopted ISPSC Sec. 305. Public pools operating without compliance with NH DES Env-Wq 1100 and RSA 485-A:26 violate NRO Sec. 105-26.B. Penalties under NRO Chapter 74 and RSA 676:15-17-b apply per NRO Sec. 105-6.
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