ADU rules in Attleboro, MA — also called accessory dwelling unit regulations or granny flat ordinances — cover setbacks, owner-occupancy, parking, and permit requirements.
Under Massachusetts law (Ch. 358 of Acts of 2024, effective Feb 2025), ADUs under 900 sq ft are allowed by right on single-family lots statewide, including Attleboro. ADUs must have a separate entrance and cannot exceed 900 sq ft or half the principal dwelling area. Both attached and detached ADUs are permitted.
Massachusetts enacted ADU provisions as part of the 2024 Affordable Homes Act, building on MGL c.40A §3 and the MBTA Communities Act. Single-family homeowners may create one ADU by right. Municipalities cannot prohibit ADUs on single-family lots. This is a recent mandate and implementation is still developing across municipalities. Attleboro may adopt reasonable regulations including size limits, setbacks, and design standards but cannot effectively ban ADUs.
Municipalities cannot deny conforming ADU applications. Unpermitted ADU: standard building code enforcement under 780 CMR.
Attleboro, MA
Attleboro regulates construction noise under its general noise ordinance and zoning provisions. Any use that is significantly offensive or detrimental to sur...
Attleboro, MA
Attleboro addresses nuisance dogs under its animal control ordinance and state law MGL Ch. 140. Dogs that habitually bark or cause disturbances may result in...
Attleboro, MA
Attleboro adopted a noise ordinance giving police the ability to issue citations and fines for excessive noise. Noise plainly audible at 200 feet may trigger...
Attleboro, MA
Attleboro regulates vehicle parking through Chapter 10 of the Ordinances and the zoning code. Oversized vehicles must comply with general street parking rule...
Attleboro, MA
Attleboro regulates commercial vehicle parking through its traffic ordinances and zoning code. Service zone loading is limited to 15 minutes (30 minutes whil...
Attleboro, MA
Attleboro enforces parking regulations under Chapter 10 of the City Ordinances. During snow emergencies per Ordinance 10-5.1(A), parking is prohibited on bot...
Side-by-side rule comparisons with other cities in Bristol County.
See how other cities in Bristol County handle adu rules.
See how Attleboro's adu rules rules stack up against other locations.
Quick Compare
Help us keep this page accurate. If you notice an error or outdated information, let us know.