Off-Grid Living in Warner, New Hampshire

I've been digging into what off-grid living actually looks like in Warner, New Hampshire, and the short version is: Warner is a zoned town with a genuinely active Planning Board and Zoning Board of Adjustment, so "off-grid" here means working within a real regulatory structure, not homesteading in a legal vacuum.

Zoning. Warner adopted its zoning ordinance under the state's enabling statute (RSA 674:16), and the town has several residential and commercial districts (R-1, R-2, R-3, OC-1, OR-1, B-1, and more), plus a Groundwater Protection Overlay District layered on top. Any raw-land use, subdivision, or building project runs through the Land Use office and, depending on scope, the Planning Board. This is a town where you can't assume open land is a blank slate; check your parcel's district first.

Dwellings, tiny homes, RVs. Warner's Building Code Ordinance sets a minimum living-area threshold for a standard single-family dwelling: 500 square feet on one floor. I did not find any specific Warner provision addressing tiny houses on wheels or RVs as permanent residences in the ordinance text I reviewed, so I'm calling that unconfirmed. If a tiny home or RV is part of your plan, that's a direct question for the Land Use office before you buy land or move anything onto it.

Building permits. Warner enforces the New Hampshire State Building Code (RSA 155-A) locally, with permits and inspections handled by the town's Building Inspector, and fees set by the Select Board. Foundations are required to be solid, concrete, block, or similarly acceptable, so post-and-pier or skid foundations for a permanent structure would need direct confirmation.

Septic and composting toilets. This is state-driven: New Hampshire DES requires written approval from its Subsurface Systems Bureau before any septic system is installed, replaced, or expanded, and Warner's own ordinance echoes that state systems must be followed. Notably, converting a seasonal building to year-round residency triggers a requirement that the waste disposal system meet state and local standards, which matters if you're eyeing a camp or cabin for full-time living. I found no town-specific composting-toilet ordinance, so state DHHS guidance would be the baseline to check.

Greywater and rainwater. Neither topic has a dedicated Warner ordinance that I could locate, and New Hampshire doesn't have a clear statewide residential greywater rule either. Rainwater harvesting for indoor use would likely fall under the state plumbing code as adopted locally, but there's no explicit local ordinance on file.

Wells. Private wells are permitted, but Warner's Groundwater Protection Overlay adds another layer of review beyond the state Water Well Board's standard rules, aimed at protecting aquifers used for public water supply.

Full off-grid disconnection. I found no blanket town ban on disconnecting from utilities, but state DES rules require any structure connected to a water supply to also have a wastewater disposal system. Combined with Warner's year-round occupancy conversion rule, this suggests fully "off-grid" permanent living without any sanctioned waste system would be a hard sell through the normal permitting process.

Bottom line: Warner isn't hostile to off-grid living, but it is a real, zoned town with layered state and local review, especially around septic, groundwater, and year-round occupancy.