Off-Grid Living in Bar Harbor, Maine

I've spent a while digging through Bar Harbor, Maine's Land Use Ordinance (Chapter 125) for this one, and the first thing I want you to understand is that Bar Harbor is zoned, and zoned in an unusually strict way. This is not one of those Maine towns where "unzoned" makes off-grid living simple by default.

Zoning is the big hurdle here. The town's Land Use Ordinance sets out roughly 40 neighborhood districts, and it states plainly that any use not specifically allowed as a permitted use (or permitted with site plan approval) is prohibited. That's a "positive list" system: if living in a yurt, converted vehicle, or bare-land camp isn't named as an allowed use in your district, it's not something you can just default into. Some areas also fall under Maine's shoreland zoning rules, which require sign-off from the state Department of Environmental Protection on top of town review. I'd treat this ordinance structure (found on eCode360, hosting Chapter 125) as the starting point for any off-grid plan here.

On tiny homes, RVs, and unconventional dwellings, I could not find a distinct town ordinance addressing them. The Land Use Ordinance does set dimensional standards, things like minimum lot size, road frontage, and setbacks, that vary by district, but whether a tiny house or RV counts as a permanent dwelling is genuinely unclear from what I found. This is a "call the Code Enforcement Officer before you buy land or build" situation, not a guess-and-go one.

Building permits are required and town-administered. For anything under 2,000 square feet of developed area, the Code Enforcement Officer handles the permit; bigger projects go to Planning Board site plan review. This is confirmed on the town's own Planning page.

Septic is where Maine's state rules and town enforcement meet directly. The state's Subsurface Wastewater Disposal Rules govern how septic systems are designed, but Bar Harbor's Plumbing Inspector issues permits and inspects construction, including before you cover any underground portions. State law (30-A M.R.S. § 4211) requires proof a septic system can meet state rules before a structure needing one can be built. Composting toilets and greywater systems appear to route through this same Local Plumbing Inspector process; I found no Bar Harbor-specific greywater ordinance, so I'd confirm alternative systems are acceptable before committing to one.

Rainwater harvesting and private wells don't appear to have town-specific ordinances. Wells fall under Maine's Water Well Commission at the state level. That's a gap in my research, not a green light, so ask the town directly if you're planning either.

Full utility disconnection isn't explicitly addressed either way, but given the "prohibited unless permitted" zoning framework and the septic permit requirement before occupancy, I wouldn't assume you can just skip permitting by going off-grid. Confirm with the Code Enforcement Officer.

Bottom line: Bar Harbor's restrictive zoning approach makes this a town where you verify first, build second.