Off-Grid Living in Moultonborough, New Hampshire

Moultonborough, New Hampshire is a zoned town, and that's an important starting point if you're picturing off-grid land here as a legal blank slate. The Town's zoning ordinance is adopted by voters under the state's RSA 672-677 framework, and it applies to every parcel in town, administered day to day by the Land Use Department, with a Zoning Board of Adjustment handling variances and special exceptions.

On raw land, single-family homes and agricultural uses are allowed pretty broadly, but lot sizes matter: I found a 40,000 square foot minimum referenced for residential/waterfront provisions, with more required per additional dwelling unit. Two-family homes need Planning Board review. So before you buy that back-lot parcel, check the actual district and lot size with the Land Use Department.

For alternative dwellings, the ordinance does have an Accessory Dwelling Unit provision (capped at 1,000 square feet, and required to meet the state Building Code and Fire Code for construction and egress). I did not find anything in the ordinance text I reviewed specifically addressing tiny houses on wheels or RVs as permanent dwellings outside a campground context, so treat that as unconfirmed and ask the Code Enforcement Officer directly before you set one up as a home.

Building permits are required, and Moultonborough enforces the state-adopted IBC/IRC codes through its Code Enforcement Officer, who also happens to double as the Building Inspector and local Health Officer, a combined role worth knowing when you call.

Septic is where "off-grid" hits a real wall: New Hampshire state law (administered by NH DES) requires any structure connected to a water supply to also have an approved wastewater disposal system, and DES issues both construction and operation approvals. I did not find a town-specific composting toilet ordinance, so that's a case where you should ask the local Health Officer directly whether it can substitute or supplement a permitted system.

Greywater reuse and rainwater harvesting do not appear to have dedicated Moultonborough ordinances in what I reviewed, meaning they likely default to whatever the state code allows (or doesn't explicitly restrict) rather than a specific local rule. Private wells are handled at the state level by the NH Water Well Board, and the town's own paperwork mostly asks whether a well exists on a lot as part of septic permitting, not additional town-level well restrictions.

As for full utility disconnection, I did not find a Moultonborough ordinance mandating hookup to municipal water or sewer, but that's a bit moot given the state wastewater disposal requirement above. In practice, a legal home in Moultonborough needs an approved septic or equivalent system even if you're generating your own power and water.

Bottom line: zoning and building codes are enforced locally, but septic and well rules largely come from the state, and several of the more "off-grid" questions (greywater, composting toilets, RV living) simply aren't spelled out in what I could find, so a phone call to Land Use before you commit to land or a design is worth the time.