Off-Grid Living in Concord, Massachusetts

If you're dreaming of an off-grid setup in Concord, Massachusetts, I want to be upfront: this is a historic, well-zoned New England town, not a rural frontier with loose rules. Everything here runs through layered permitting, and I'm writing this as research, not as someone who has personally built or lived in an off-grid setup here, so treat this as a starting map and confirm specifics with the offices below.

Zoning. Concord is fully zoned under its Zoning Bylaw, adopted under the state's Chapter 40A (the Massachusetts Zoning Act), and administered locally with district-based dimensional rules (lot size, frontage, setbacks). There's no "unzoned" corner of town to tuck a cabin into. The Planning Board also has Subdivision Rules that matter if you're carving up land.

Dwellings, tiny homes, RVs. Concord's bylaw specifically addresses accessory dwelling units (ADUs), allowing them by right up to a certain size and larger with a special permit, with owner-occupancy requirements. Living full-time in a standalone RV or travel trailer as a permanent residence isn't addressed in what I found on the town's site, so I'd call it unclear and worth a direct question to the Building Division before you try it.

Building permits. The Building Division enforces the Massachusetts Building Code, plus state electrical, plumbing, and gas codes, on top of Concord's own zoning and sign bylaws. Permits go through the town's PermitEyes portal or the Building Inspections office.

Septic and greywater. Massachusetts Title 5 (310 CMR 15.000) is the state rule here, enforced locally by the Concord Board of Health. New systems need a Form A soil test and Form B construction permit, reviewed by the Health Division, installed by a town-licensed installer. I found no separate Concord provision allowing standalone greywater discharge outside an approved septic system, so greywater reuse effectively rides on the same Title 5 framework, restricted rather than freely permitted.

Rainwater harvesting. I couldn't find a Concord bylaw or Board of Health rule specifically addressing catchment systems, indoor or outdoor. That doesn't mean it's banned, it means it's not clearly addressed locally, so ask the Board of Health directly if you're planning something beyond a simple rain barrel.

Private wells. Concord's Board of Health has its own Minimum Sanitation Standards for private and semi-public water supplies, layered on top of EPA and MassDEP guidance. Well owners are responsible for their own water quality and testing.

Utilities and off-grid power. Solar installation has a defined path: your electrician contacts the Building Department for an Electrical Inspector visit, and Concord Municipal Light Plant does a final site check. Full disconnection from the grid entirely isn't separately addressed in what I found, so the state building code baseline likely applies, but check with Building Inspections directly.

Bottom line: Concord is workable for off-grid systems (solar, wells, careful septic design) but not a place to skip permits. Every path runs through a town office.