Off-Grid Living in Canterbury, Connecticut

If you're eyeing Canterbury, Connecticut for an off-grid setup, the first thing to know is that Canterbury is a zoned town. It's not one of those rare unzoned Connecticut towns where you can just do as you please with raw land. The Canterbury Planning & Zoning Commission adopted its Zoning Ordinance back in 1974 and has revised it many times since (the town site shows a version dated April 2025), and that ordinance governs land use, permitted structures, and presumably things like setbacks and lot coverage. I didn't find the specific setback or minimum-lot-size figures in my research, so if you're looking at a particular parcel, call the Zoning/Wetland Enforcement Officer to get the real numbers rather than guessing.

On dwellings: the town's Land Use office handles building and zoning permits together, but I could not confirm explicit rules on whether tiny homes or RVs can serve as a permanent, year-round residence in Canterbury. That's a question for the Zoning Enforcement Officer directly, because towns vary a lot on this and I don't want to guess.

Building permits and inspections run through the town's Building Official, who enforces the Connecticut State Building Code locally. Inspections are scheduled through that office.

Septic and well permitting in Canterbury doesn't go through the town at all, it goes through the Northeast District Department of Health (NDDH), a regional health district covering Canterbury and eleven other towns. NDDH sanitarians handle site investigations, septic plan review, permits to construct, and inspections. I did not find anything confirming that composting toilets alone (without a permitted septic system) satisfy NDDH's requirements, so that's worth a direct call. Wells work similarly: NDDH reviews the well completion report and water analysis before issuing a Permit to Discharge, a copy of which goes to the town Building Official.

Greywater reuse has no specific Canterbury or NDDH rule that I could find, so treat it as governed by whatever the state baseline is, and confirm with NDDH before building any greywater system. Rainwater harvesting looks fine, I found no local restriction, and it would just fall under normal building permitting if you're plumbing it into a structure.

Living fully disconnected from utilities (no grid electric, no municipal water/sewer) doesn't appear to be banned outright, but occupancy sign-off is tied to the Building Official's inspections and NDDH's well/septic approvals, not to being connected to utility lines. So going off-grid on power seems workable; going off-grid on water/wastewater compliance still means working through NDDH's process.

Bottom line: Canterbury's zoning is town-level, building code enforcement is town-level, but water and wastewater are handled by the regional health district (NDDH). Confirm every specific with the offices below before you buy or build.