Off-Grid Living in Durham, Maine

I've been digging into what it actually takes to live off-grid in Durham, Maine, and the short version is: Durham is a zoned town, not open country, so you're working within a real regulatory structure from day one.

Zoning. Durham adopted a town-wide Land Use Ordinance back in 2005, with updates through 2016 and an attested amendment in 2024. It's administered by the Code Enforcement Officer and the Planning Board. On top of that local ordinance, Maine's Mandatory Shoreland Zoning Act (a state law) forces every town, Durham included, to regulate development near great ponds, rivers, wetlands, and streams. So if your land touches water, you're dealing with both the town ordinance and state shoreland rules. Most nonresidential buildings need Planning Board site plan review, with an exception carved out for agricultural uses.

Dwellings, tiny homes, RVs. I couldn't find anything in Durham's published ordinance materials that specifically addresses tiny homes or RVs as year-round residences. That's a real gap, not an answer, so don't assume either way. Call the Code Enforcement Officer before you plan around this.

Building permits. Durham requires a permit for any new structure over 200 square feet, for demolition, for any plumbing work (new or added fixtures, drain work), and for all electrical work. As of construction permitted after April 7, 2025, the town uses the 2021 IRC as its residential code manual. The town's own guidance is blunt: call 207-844-1774 or email ceo@durhammaine.gov before you touch building, plumbing, wiring, or open a business on the property.

Septic and composting toilets. Any septic work beyond routine pumping or filter cleaning needs a permit, issued locally by Durham's Local Plumbing Inspector (the same office as Code Enforcement) but governed by the state's Subsurface Wastewater Disposal Rules. Composting toilets fall under this same state/local framework rather than being separately addressed.

Greywater, rainwater, wells. Honestly, I found no Durham-specific ordinance language on any of these three. Greywater and well matters route through the state's Subsurface Wastewater Disposal Rules and local Plumbing Inspector, but the town hasn't published its own separate rules that I could locate. Rainwater harvesting simply wasn't addressed anywhere I looked. Treat all three as "confirm directly with the town" items.

Utility disconnection. No explicit off-grid or utility-disconnection ordinance turned up either. In practice, going off-grid in Durham means working through the same building, plumbing, and septic permit gates everyone else uses, there's no separate off-grid pathway or exemption that I found.

Bottom line for planning: Durham isn't hostile to off-grid living, but it's also not a regulatory vacuum. The town has real permit triggers for structures, plumbing, and electrical, and several important off-grid-specific questions (tiny homes, greywater, rainwater, wells) simply aren't spelled out in what I could access. That means your best move is a phone call to the Code Enforcement Officer before you buy or build.