Off-Grid Living in Cranberry Isles, Maine

I've been digging into what off-grid living actually looks like on Cranberry Isles, Maine, and the short version is: this is a zoned town, and being a cluster of small islands, shoreland rules touch nearly every parcel. Don't assume "island life" means fewer rules, if anything, the water proximity brings more oversight.

Zoning. Cranberry Isles enacted a general Zoning Ordinance back in October 2020, and it sits alongside a long-standing Shoreland Zoning Ordinance. Because the islands are mostly shoreline, that Shoreland Zoning Ordinance likely governs most lots, including setbacks that could affect where you can put a well or a structure. The Select Board and Planning Board administer these. There's also a separate Camping Permit Ordinance from 1978 that touches raw-land occupancy, so if you're thinking about just parking on land and living there, check with the Town Office first.

Dwellings, tiny homes, RVs. I couldn't confirm a specific town rule on tiny homes or RVs as permanent dwellings. The old Camping Permit Ordinance may cover temporary occupancy, but I don't have its current text. This is one to call the Town Office or Code Enforcement Officer about directly before you commit to anything.

Building permits. The town has its own Building Notification Ordinance from 1989 requiring notice/permitting for construction, administered locally. Maine's statewide building code (MUBEC) is optional for towns this small, so whether Cranberry Isles has formally adopted it isn't something I can confirm from public sources, ask the town directly.

Septic and composting toilets. This one's clearer: Maine's Subsurface Wastewater Disposal Rules (state law, Chapter 241) require a Local Plumbing Inspector (LPI) to review and permit any septic or alternative toilet system, including composting toilets. The LPI is a town-appointed role but enforces state rules, and by law they have to act on your application within a set window or reject it in writing. Contact the Town Office to find out who currently holds the LPI role.

Greywater. Same state rules apply, no separate Cranberry Isles ordinance exists that I could find. The LPI is your point of contact here too.

Rainwater harvesting. No town-specific rule turned up in my research. This looks like a gap rather than a prohibition, but confirm with the Code Enforcement Officer before building a catchment system.

Wells. No town-specific well ordinance either. State Water Well Commission rules would be the baseline, and shoreland setbacks may constrain where you can drill given how little dry land these islands have.

Utility disconnection. No ordinance explicitly bans living off-grid without utility hookups. In practice, though, you'll run into it indirectly through zoning, building notification, and septic permitting, since anywhere you build or place a dwelling will get routed through those town processes.

Bottom line: Cranberry Isles isn't hostile to off-grid living, but the island geography means shoreland rules are unavoidable, and several key questions (tiny homes, RVs, MUBEC adoption) simply aren't answered in what I could find publicly. Call the Town Office before you plan anything permanent.