Off-Grid Living in Hampton Falls, New Hampshire

Hampton Falls is a real puzzle for anyone dreaming of an off-grid setup in New Hampshire, mostly because it's a small, quiet town that does regulate land use, even though it doesn't feel like a place with heavy bureaucracy. I want to walk through what I found researching official town and state sources, and be upfront about what's still fuzzy.

Zoning is local, and it's active. Hampton Falls is not an unzoned town. The town maintains its own Zoning Ordinance (most recently updated in a March 2025 version) and a Zoning Map, both administered by the Planning Board and a Zoning Board of Adjustment that also leans on state law (RSA 674:33) for its procedures. If you're eyeing raw land here, the district you land in matters a lot, and I'd pull the full ordinance text or call the Planning Board before assuming anything about minimum lot sizes or what's allowed outright.

Dwellings, tiny homes, and RVs are the murkiest area in my research. The ordinance does address accessory dwelling units through a conditional-use permit process, which tells me the town takes a case-by-case approach to secondary living spaces. But I couldn't confirm how (or whether) tiny homes on wheels or RVs used as permanent residences are treated. This is a "call before you buy land" situation, not a "post it doesn't exist so it's fine" situation.

Building permits are locally administered. Hampton Falls has its own Building Code, enforced by a Building Inspector who issues permits and inspects construction, electrical, and plumbing work. The code has been amended to align with the state building code, but enforcement authority sits with the town's own inspector, so that's your first call.

Septic systems run through the state, not a separate town code. All septic design and approval statewide, including here, goes through NHDES's Subsurface Systems Bureau. The town's site-plan process does reference a witness of test pit step, so there's local coordination, but the actual permitting authority is the state.

Greywater reuse has no Hampton Falls-specific rule that I could find, and New Hampshire doesn't have a dedicated statewide residential greywater program either, so this lands in unclear territory. Rainwater harvesting looks fine under the general state building/plumbing code framework the town has adopted, with no added town restriction showing up in my research.

Private wells are state-regulated (NH Water Well Board, RSA 482-B), and the town's site-plan paperwork just collects information about water supply during subdivision review rather than layering on its own well rules.

Utility disconnection (living without municipal water/sewer) isn't explicitly addressed either way in what I found. Hampton Falls has no municipal sewer system referenced in these sources, which is typical for a small rural NH town, but I didn't find an explicit town policy permitting or barring going off-grid utility-wise.

Bottom line: treat the local Building Inspector and Planning Board as your first stops, and confirm anything ordinance-specific directly with them rather than relying on general assumptions about "rural New Hampshire."