Swimming pool rules in Sandwich, Massachusetts
Yes, with a building permit. In Sandwich, a pool can't go in front of the house and must be at least 10 feet from side and rear property lines and 12 feet from the house, deck, shed or other structures. An in-ground pool must also be 20 feet from the septic leaching area. Pool fencing follows the Massachusetts State Building Code, and the permit fee is $0.45 per square foot.
| Location | Not in front of the dwelling [1] |
| Setback from side and rear property lines | 10 feet minimum [1] |
| Distance from other structures | 12 feet minimum (house, deck, shed, garage) [1] |
| Distance from septic leaching area (in-ground pool) | 20 feet minimum [1] |
| Distance from septic tank | 10 feet minimum [2] |
| Barrier/fence | Per the Massachusetts State Building Code [3] |
| Permit fee | $0.45 per sq ft (above-ground and in-ground) [5] |
| When a pool counts as a structure | 2 ft or deeper and 4,000 gallons or more [6] |
Permit and submission
Pools, above-ground and in-ground, need a building permit, charged at $0.45 per square foot [5]. The Building Department's pool handout asks for:
- a certified plot plan showing 2-foot contours, all existing and proposed structures, all septic components, and setbacks;
- construction documents for the pool and its heater, pump and controls;
- a workers' compensation certificate;
- any Historic District or Conservation Commission approvals that apply.
Setbacks
Under the Building Department's pool requirements, a pool:
- may not be in front of the dwelling;
- must be at least 10 feet from side and rear property lines;
- must be at least 12 feet from any other structure, such as the house, deck, shed or garage;
- if in-ground, must be at least 20 feet from the septic leaching area [1];
- must be at least 10 feet from the septic tank;
- if above-ground, can't be placed on any septic component [2].
Fencing
Section 4810 of the zoning bylaw requires pools to comply with the State Building Code in effect when they're built [4]. The town's handout refers fencing to the state code's pool barrier requirements [3].
Zoning districts
The use table lists "Swimming Pools accessory to Residential Use" as allowed by right in R-1, R-2, BL-1, B-2 and RD, and by special permit in VIL; it isn't allowed in the Shore (S) district. The bylaw defines a swimming pool as any pool, above or below ground, portable or fixed, used for swimming, wading or bathing. Pools 2 feet or deeper holding 4,000 gallons or more count as structures [6].
Other approvals
North of Route 6 (the Old King's Highway Historic District), visible exterior work may need Historic District Committee approval. Within 100 feet of a wetland, pond, beach or dune, you need Conservation Commission approval first. Hot tubs aren't separately addressed in the town documents we reviewed.
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Next steps
- Have a certified plot plan made showing 2-ft contours, all structures, all septic components, and the pool's distances from lot lines (10 ft), structures (12 ft), the leaching area (20 ft) and the septic tank (10 ft).
- If the site is within 100 ft of a wetland or pond, or north of Route 6, get Conservation Commission (508-833-8054) or Historic District Committee (508-833-8001) approval first.
- Apply for the building permit in Permit Eyes with the plot plan, pool construction documents and a workers' comp certificate; the fee is $0.45 per sq ft.
- Install a barrier meeting the State Building Code pool requirements and schedule inspections with the Building Department at 508-888-4200.
Common questions
- Do I need a permit for a pool in Sandwich, Massachusetts?
- Yes. Above-ground and in-ground pools need a building permit, charged at $0.45 per square foot. Submit a certified plot plan, construction documents and a workers' comp certificate, plus any Historic District or Conservation approvals.
- How far does a pool have to be from the property line in Sandwich, MA?
- At least 10 feet from side and rear property lines, and at least 12 feet from the house, deck, shed or other structures. A pool can't go in front of the house, and an in-ground pool must be 20 feet from the septic leaching area.
- What are the pool fence requirements in Sandwich, Massachusetts?
- Pool fencing follows the Massachusetts State Building Code pool barrier requirements. Sandwich's zoning bylaw requires pools to comply with the State Building Code in effect when they're built.
- Do I need a permit for an above-ground pool in Sandwich, MA?
- Yes. Above-ground pools need a building permit at the same $0.45 per square foot rate. They must meet the same setbacks and can't be placed on any septic component.
Massachusetts building code rules for pools
Under the State Building Code (780 CMR, 10th edition), residential pools, spas and hot tubs must meet the 2021 International Swimming Pool and Spa Code (ISPSC) as adopted in Massachusetts.
Permits:
- A building permit is needed for any pool except prefabricated pools under 24 inches deep.
- Plans for in-ground pools must be prepared by a registered design professional (an engineer or architect).
- Wiring must meet the Massachusetts Electrical Code (527 CMR 12.00), and gas pool heaters must meet the state plumbing and gas code (248 CMR).
Barrier (fence) requirements (ISPSC §305):
- The barrier must be at least 48 inches high, measured on the side away from the pool.
- The gap under the barrier can be no more than 2 inches over grass or gravel, or 4 inches over concrete.
- Pedestrian gates must open outward away from the pool, be self-closing and self-latching, and be able to take a lock.
- If a house wall forms part of the barrier, doors and low windows opening to the pool need an audible alarm (or another listed option).
- In-ground pool construction sites need temporary fencing at least 4 feet high from excavation until the permanent barrier is up.
- Spas and hot tubs with a lockable safety cover meeting ASTM F1346, and pools with a powered safety cover meeting that standard, are exempt from the barrier rules.
Local zoning still controls pool setbacks, and wetlands rules may apply near water.
What the bylaw says
- Swimming Pool Submission Requirements, Setback Requirements, Swimming Pool Submission Requirements/Information (last update 5/22/25), p. 1
1. Not allowed in the front of dwelling 2. 10 ft. minimum from side and rear property lines 3. 12 ft. minimum from any other structure (house, deck, shed, garage, etc.) 4. 20 ft. minimum from septic’s leaching (if in-ground pool)
- Swimming Pool Submission Requirements, Setback Requirements, Swimming Pool Submission Requirements/Information (last update 5/22/25), p. 1
5. 10 ft. minimum from septic’s tank 6. Above-ground pool not to be placed on any septic components
- Swimming Pool Submission Requirements, Fence Requirements, Swimming Pool Submission Requirements/Information (last update 5/22/25), p. 1
FENCE REQUIREMENTS See Massachusetts State Building Code Requirements for Pools
- Sec. 4810 Swimming Pools, Protective Zoning By-law (May 2025 edition), p. 59
Swimming pools, whether public or private as defined in the Massachusetts State Building Code, shall comply with the applicable provisions of said State Building Code as may be in effect at the time of their construction.
- Residential Building Permit Fee Schedule, Residential Building Permit Fee Schedule (2025), p. 1
Pool (Above and In‐Ground) $0.45 Per Sq. Ft.
- Article VIII Definitions, Swimming Pool, Protective Zoning By-law (May 2025 edition), p. 91
Pools having a depth of two feet or more and having a capacity of 4,000 gallons or more in volume shall be considered structures.