How New Bedford Handles Accessory Structures: A Practical Guide
New Bedford maintains 76 local ordinances across all categories, and 2 of those deal specifically with accessory structures. Here is a breakdown of what the city actually requires, what is prohibited, and where New Bedford falls on the strict-to-permissive spectrum compared to other cities.
Shed & Carport Rules
New Bedford caps a storage shed at 200 square feet, 12 feet tall, with no plumbing or heating and a foundation no deeper than 10 inches. Placed behind the dwelling in the rear yard, a shed can sit as close as 18 inches to the rear or side lot line, or 18 inches from a fence if one runs the line.
Key details: Max shed floor area: 200 square feet. Max shed height: 12 feet. Rear yard shed setback: 18 inches from rear lot line. Side yard shed setback: 18 inches (behind dwelling in rear yard). Foundation depth limit: No more than 10 inches below grade.
Any shed erected past the 18-inch line, oversized, or fitted with plumbing or heat in violation of Section 3028's definition is a zoning violation. Section 5130 sets the penalty at $300 for each offense, with every day the violation continues counted as a separate offense. The Inspector of Buildings can order a nonconforming shed relocated or removed under Section 5120 before further fines accrue.
ADU Rules
New Bedford lets owners of single-family homes add one accessory dwelling unit by special permit from the Board of Appeals under Zoning Section 2340. The unit must stay inside the existing residential structure, cannot exceed 1,000 square feet, and the owner must live in the primary dwelling while it is occupied; the permit lapses every two years.
Key details: Permit: Board of Appeals special permit required. Size cap: 1,000 square feet of floor space. Units per lot: One accessory dwelling unit maximum. Occupancy rule: Owner must occupy the primary dwelling. Permit term: Lapses every 2 years, renewable.
Building or occupying an accessory dwelling unit without a Board of Appeals special permit, exceeding the 1,000-square-foot cap, or having the owner move out of the primary dwelling while the unit stays occupied violates Section 2340. The Inspector of Buildings enforces the ordinance under Section 5120 and can require removal of an unpermitted unit or non-renewal of a lapsed permit, with further remedies under M.G.L.A. c. 40A, § 7.
Compared to other cities, New Bedford takes a harder line on adu rules. The enforcement and penalty structure reflects that.
The Bottom Line
New Bedford's accessory structures rules are a mixed bag. Some areas are strict, others are relaxed, and the details matter. The best approach is to check the specific rule that applies to your situation rather than assuming New Bedford is broadly strict or permissive.
These rules come from New Bedford's publicly available municipal code. For complete penalty schedules, exemption details, and answers to common questions, see the individual ordinance pages throughout this guide.