Off-Grid Living in Pelham, New Hampshire

I've been digging through Pelham, New Hampshire's town documents and the state rules that sit underneath them, and here's the honest picture for anyone thinking about off-grid living there.

Pelham is a zoned town, not open country. The Planning Department administers a Zoning Ordinance (revised March 2025), plus separate Land Use/Subdivision, Waste Disposal Systems, and Well regulations. A Zoning Board of Adjustment exists to hear variance requests when the ordinance doesn't fit your situation. What I couldn't confirm from the materials I have is whether raw, undeveloped-land occupancy (living on land without a conventional structure) is separately addressed anywhere in the ordinance's district-by-district rules. You'd need to check the full zoning PDF or call the Planning Office directly.

On dwellings: Pelham's building permit application mentions Accessory Dwelling Units needing Fire Inspector sign-off and plan review, but I found no explicit town rule on tiny homes on wheels or long-term RV living. That's a gap in what's publicly documented, not necessarily a "no."

Building permits are required, and the town has adopted the 2021 International Building Code. State law (RSA 676:13) gives the building inspector a defined window to act on a completed application, and there's an appeal window if a permit is denied. Inspections run on a set weekly schedule that you'd log through the Planning Office.

Septic is the big one: Pelham has its own Waste Disposal Systems Regulations layered on top of the state's Individual Sewage Disposal Systems rule (NHDES Env-Wq 1000), which requires a septic system for any structure with a connected water supply that discharges wastewater. Composting and incinerator toilets are recognized as alternatives under state guidance, with specific siting requirements (like the privy pit's clearance above the seasonal high water table). Whether Pelham's local regs add anything stricter isn't confirmed from what I've read, so check the town's PDF or call Planning.

Greywater and rainwater harvesting have no Pelham-specific rules that I could find. Both fall back to state guidance and the adopted 2021 IBC as a baseline, but that's not the same as a clear local yes.

Wells are locally regulated through Pelham's own Well Ordinance (adopted October 2024), on top of state RSA 482-B licensing for well contractors. Notably, the town won't issue a Certificate of Occupancy until it has a water test on file, and contaminated wells must be sanitized and retested.

There's no standalone "must connect to grid utilities" ordinance that I found, but in practice the CO process ties full legal occupancy to well and septic compliance, which functions similarly.

Bottom line: Pelham is workable for off-grid systems (well, septic, alternative toilets) but it's not lightly regulated, and several specifics (raw-land living, RV/tiny home occupancy, local greywater rules) aren't spelled out publicly, so a call to Planning is worth it before you buy land.