Off-Grid Living in New Canaan, Connecticut

I'll be upfront: New Canaan is one of the more tightly regulated towns I've researched for off-grid living, and that's worth knowing before you get attached to a parcel here.

Zoning. New Canaan has been a zoned town since 1932, with its regulations comprehensively updated in 2007 and administered today by the Planning & Zoning Department under the Planning and Zoning Commission. This isn't a place where you can just buy raw land and do as you please, residential districts have their own lot size and setback rules, and any use of land runs through that office.

Dwellings, tiny homes, RVs. I didn't find anything in the town's public materials that specifically addresses tiny homes or living in an RV. That's a gap, not a green light, so I'd call the Planning & Zoning office directly before assuming anything is allowed.

Building permits. Here's the part that surprised me: New Canaan's Health Department requires you to have either an existing code-compliant septic system, or an approved septic plan on file, before the Building Department will even accept your building permit application. That's a town-level administrative hurdle layered on top of the state building code, and it can catch people off guard.

Septic and composting toilets. The town enforces septic rules through its Health Department, Department of Public Works, and Water Pollution Control Authority, and separately requires a permit from the Town Clerk for anyone hauling septic or privy waste. I found no mention of composting toilets as an accepted alternative, so treat that as unresolved and ask the Health Department directly.

Greywater. No New Canaan-specific rule turned up in my research. This falls back to the state's general "unclear" posture on household greywater reuse.

Rainwater harvesting. I didn't find any town rule adding restrictions beyond the state building code, which generally permits rainwater collection with the local building department handling any permit that might be required.

Wells. The Health Department issues well permits and requires a Well Completion Report, but is explicit that the town takes no responsibility for future well operation or maintenance once it's approved. That's your risk to manage, not theirs.

Utility disconnection. There's no outright ban on going off-grid that I could find, but in practice the septic-before-permit policy means you can't easily build, remodel, or add structures without first satisfying the Health Department on wastewater. That makes fully disconnecting from municipal systems a much longer paperwork road than in a rural, unzoned township.

Bottom line for me: New Canaan leans restrictive across the board, largely because it's a fully zoned, affluent Fairfield County town with active Health and Planning & Zoning departments. If off-grid living is your goal, I'd call before you buy, not after.