Off-Grid Living in Colebrook, New Hampshire

Colebrook is a zoned town in Coös County, New Hampshire, and it's actually gotten some recognition lately for modernizing its zoning ordinance, so don't go in assuming rural New Hampshire means unregulated. I've dug through what the Town of Colebrook and the state have published, and here's where things stand.

Zoning and building. Colebrook's Planning Board administers zoning and site-plan review, and the town went through a comprehensive update of its ordinance (voters approved changes including more flexible lot sizes, simplified cluster housing provisions, and updated definitions for manufactured housing and RVs). The town has also added a density bonus for cluster developments meant to encourage smaller homes, under 1,200 square feet. Detached ADUs were approved in 2024 as well. A building permit, what the town calls a "Zoning Ordinance Certificate of Compliance Application," is required through the Planning Board/Town Office, and the state building code under RSA 155-A applies with local enforcement. I could not find the specific placement rules for RVs or tiny homes on wheels spelled out in what I retrieved, so that detail needs confirming directly with the Planning Board.

Septic and composting toilets. This one's set by the state. NH DES's Subsurface Systems Bureau requires a permit before you install a septic system, including a site assessment and design review by a licensed designer. Colebrook's building-permit paperwork also asks for water/septic documentation, but I didn't find town-specific rules on composting toilets in official sources, so treat that as unconfirmed and ask the Planning Board directly.

Greywater and rainwater. I found no Colebrook-specific ordinance on greywater reuse, which leaves it in the same unclear spot New Hampshire sits in generally at the state level. Rainwater harvesting, by contrast, doesn't appear to be restricted by the town, and it looks like Colebrook just follows the state-adopted plumbing/residential code baseline here.

Wells and utilities. Private wells are governed by the state's Water Well Board, and I didn't find a town ordinance layering on additional requirements. Worth noting: Colebrook does run its own municipal water system in the village area, so if you're inside that service area, town water rules and rates (set by the Board of Selectmen) may apply rather than a private well. As for going fully off-grid, disconnected from utilities, I did not find an explicit town ordinance that bans it or mandates hookup, but building-permit documentation seems to functionally require you to show some wastewater solution when you build or renovate. That detail comes from a non-official permit-guide source, so I'm flagging it as unconfirmed until the Planning Board verifies it.

Bottom line: Colebrook is friendlier to smaller and alternative housing than a lot of towns, thanks to its recent zoning overhaul, but septic, building permits, and water documentation all still run through either the Town or NH DES, and a few specifics (RV placement, composting toilets, off-grid disconnection) just weren't nailed down in what's publicly posted. Call the Planning Board before you buy land or start building.