Off-Grid Living in Tewksbury, Massachusetts

Tewksbury, Massachusetts is a fully zoned town, and that's the first thing I want to be honest about: this is not a place where you can just buy raw land and do whatever you want on it. The Town of Tewksbury Zoning Bylaw, adopted under the state's Zoning Act (G.L. c. 40A), governs land use here, and the Building Department enforces both that bylaw and the Massachusetts State Building Code. Any off-grid plan starts with figuring out which zoning district your parcel sits in and what's allowed there, by checking the current zoning map and bylaw text or calling the Planning & Zoning office directly.

On dwellings, I couldn't find a specific Tewksbury clause addressing tiny homes or RVs as permanent residences in the materials I reviewed. That doesn't mean it's automatically prohibited or automatically fine, it means the Building Commissioner's office is the one to ask, since that office interprets and enforces the bylaw and can require plans and specs to check state law compliance. Don't assume, call first.

Building permits and inspections run through the town Building Department at the standard address on Main Street, and they follow the Massachusetts State Building Code layered under the local zoning bylaw. Septic is where Massachusetts is unusually strict statewide: Title 5 (310 CMR 15.000) is a state regulation, not a Tewksbury invention, and it's administered locally by the Board of Health, part of a regional public health partnership (NEPHA). Composting toilets and any alternative system still have to satisfy Title 5 requirements as interpreted by that Board of Health office. Greywater is treated the same way, as regulated wastewater under Title 5, since I found no separate Tewksbury bylaw carving out standalone greywater reuse.

Rainwater harvesting has no town-specific ordinance that I could locate, so the practical answer is that the general state baseline likely applies (outdoor collection typically fine, indoor plumbing use more complicated), but this is genuinely unconfirmed for Tewksbury specifically and worth a direct question to the Building Department if you're planning an indoor system.

Private wells are generally permitted, with the Board of Health handling siting review, largely tied to septic setback rules under Title 5. Living fully disconnected from utilities isn't specifically banned by anything I found, but "restricted" is the fair label because your structure still has to satisfy the state building code and zoning bylaw as interpreted locally, meaning off-grid power or water systems still have to pass inspection like anything else.

Bottom line: Tewksbury isn't hostile to off-grid living in principle, but it's a zoned Massachusetts town where the state's Title 5 septic rules and the local building code do a lot of the regulatory work. Don't take my summary as the final word, confirm district-specific and dwelling-specific questions with the town offices below before you commit to land or a build.