Off-Grid Living in Marlow, New Hampshire

I've been digging into what off-grid living actually looks like in Marlow, New Hampshire, and I want to be upfront: this is research, not legal advice, and not something I've personally done in this town. Always confirm with Marlow's own offices before you buy land or start building.

Zoning. Marlow is zoned, it's not one of those wide-open unzoned New Hampshire towns. The Marlow Planning Board and Zoning Board of Adjustment administer several districts, R-2, R-5, R-10, and two commercial zones, laid out in the town's Zoning Ordinance. There's also a Wetland Conservation District overlay, and where it overlaps another district, the stricter rule wins. I didn't find specific language in the ordinance excerpts about occupying raw or unimproved land (say, living in an RV while you build), so that's a direct question for the Planning Board.

Dwellings, tiny homes, and RVs. Marlow has an Accessory Dwelling Unit ordinance on the books, which is worth reading if you're thinking of a small secondary structure. But I couldn't find town-specific language addressing tiny homes on wheels or long-term RV living. Don't assume either is fine, call the Planning Board or Building Inspector first.

Building permits. Marlow issues and enforces building permits locally, consistent with the state's delegation of code enforcement to municipalities under New Hampshire's RSA 155-A framework. The Building Inspector's office keeps limited hours (Wednesdays and Thursdays), so plan ahead if you need an appointment or inspection.

Septic and composting toilets. This one is mostly a state matter. Before any septic system is installed, replaced, or expanded, NH DES's Subsurface Systems Bureau has to give written approval, and that paperwork gets shared with the town when requested. Towns can add their own septic regulation under RSA 485-A, but I didn't find a Marlow-specific composting toilet ordinance. State health guidance acknowledges composting toilets exist, but whether Marlow's Health Officer or Building Inspector will sign off on one for a permitted dwelling isn't confirmed, ask them directly.

Greywater and rainwater. I found nothing Marlow-specific on either. New Hampshire doesn't have a dedicated statewide DES rule on residential greywater reuse, and rainwater harvesting seems to just fall under the general state plumbing/residential code baseline. Treat both as unclear until the town or state DES weighs in for your specific setup.

Wells. Private wells fall under the state Water Well Board (RSA 482-B). No Marlow-specific well ordinance turned up in my research.

Utility disconnection. No town rule was found requiring hookups for occupancy, but note the state rule: any structure connected to a water supply must also be connected to a wastewater disposal system, sewer or individual septic. That applies everywhere in New Hampshire, Marlow included. Siting also has to respect the Wetland Conservation District, though the Selectmen and Zoning Board can consider relief with proper soils investigation.

Bottom line: Marlow gives you real zoned structure to work within, and the biggest gaps in what I could confirm are around tiny homes, RVs, greywater, and rainwater. Those all need a phone call.