Off-Grid Living in Dunstable, Massachusetts

I've spent time digging through Dunstable, Massachusetts' town records for this one, and the short version is: this is a zoned New England town with a genuine rural character, but it is not a place where you can just buy a back lot and start living off-grid without oversight.

Zoning. Dunstable has a full Zoning Bylaw administered by the Planning Board, amendable through Town Meeting under the state's Chapter 40A framework. The bylaw covers residential and business districts, a Town Center District, a Floodplain overlay, and even a Solar Energy Overlay District, which tells me the town has actually thought about renewable energy siting. Raw land occupancy without a permitted structure isn't spelled out as some kind of loophole, so I wouldn't assume you can park and live on vacant land indefinitely.

Dwellings, tiny homes, RVs. The bylaw does address accessory dwelling units, capping their size relative to the main house, but I found nothing confirming that a standalone tiny home or RV can serve as a primary residence in Dunstable. That's a "not confirmed, go ask" situation, not a green light.

Building permits. The Building Inspector's office, per the town's own inspections page, requires permits for all new construction plus roofs, siding, accessory structures, even pools. Depending on what you're building, your plans may also need sign-off from the Fire Department, Health Department, Conservation Commission, and others before the Building Inspector will approve.

Septic and wells. This is where Dunstable gets specific. The Board of Health, working with the Nashoba Associated Boards of Health, enforces its own Subsurface Disposal Regulations layered on top of the state's Title 5 septic code, and it has separate Well Regulations too. If you're building new, you're expected to appear before the Board of Health for both septic and well design approval. Tight tanks are mentioned as an alternative in certain circumstances, which is worth asking about if a conventional septic field isn't feasible on your lot.

Greywater and rainwater. I could not find a Dunstable-specific greywater bylaw. Given that all wastewater seems to fall under the Board of Health's sewage regulations, I'd assume greywater gets treated the same as other sewage until you're told otherwise. Rainwater harvesting isn't addressed anywhere in the official sources I found, so that one is genuinely unclear, ask before you build a serious catchment system.

Utilities. Nothing in the bylaws bans going off-grid electrically, and the Solar Overlay District suggests the town is comfortable with solar. But your structure still needs a building permit and Board of Health sign-off on septic and well regardless of whether you're tied into the electric grid.

Bottom line: Dunstable isn't hostile to off-grid living, but it is a "call first, build second" town where the Board of Health and Building Inspector are going to be central to whatever you plan.