Off-Grid Living in Wilton, Connecticut

Wilton, Connecticut is fully zoned, and it's not a place where you can quietly settle on raw land and build off-grid without anyone noticing. I want to be upfront about that before getting into the details, because Wilton's regulatory posture is closer to "suburban town with real enforcement" than "rural county that leaves you alone."

Zoning. The Town of Wilton has a nine-member Planning and Zoning Commission (PZC) that adopted the town's Zoning Regulations (Chapter 29 of the municipal code) and has kept them updated since. The rules require every building to sit on a lot with a permit, and a Zoning Enforcement Officer handles compliance. This isn't a state mandate flowing down, it's a locally adopted and locally enforced code, so living on unimproved land without an approved structure isn't something Wilton's regulations allow for.

Dwellings, tiny homes, RVs. I didn't find a Wilton provision that carves out an exception for full-time RV living or tiny homes outside the normal building/zoning permit process. Any accessory structure has to meet the same zoning standards as a regular building in that zone. If you're picturing parking a camper on vacant land as your address, that's not confirmed as workable here, and I'd ask the Zoning Enforcement Officer directly.

Building permits. The Wilton Building Department issues permits and inspects for safety, now largely through an online portal. Homes in the town's Historic District may face an added layer of review from the Historic Commission, so that's worth checking if your parcel falls there.

Septic and composting toilets. Wilton's Chapter 17 (Health and Sanitation) requires Town Sanitary Authority inspection and approval of septic systems before they're covered, and it acknowledges alternatives like privies and non-flush-toilet drainage setups exist, but those are still funneled through the same Sanitary Authority approval, not a separate composting-toilet pathway. The underlying technical standard is the Connecticut Public Health Code, administered with the local health department handling routine residential permits.

Greywater. There's no dedicated greywater reuse ordinance that I found. The health code touches on laundry/sink drainage systems only in the context of sizing them relative to standard sewage systems, not as a standalone greywater reuse permit. I'd call this unclear and worth a direct question to the Health Department.

Rainwater harvesting. I didn't find any Wilton-specific restriction, so this likely just follows the state building code baseline, but that's not something I can confirm as settled town policy.

Wells. Wilton requires a permit from the Town Sanitary Authority before any well is dug or drilled for a dwelling or similar building. The Health Department also points residents toward state-approved labs for water testing.

Utility disconnection. There's no outright ban on going off-grid that I found, but well and septic permitting plus Building Department sign-off before occupancy functions as a practical gate, similar to how most Connecticut towns operate.

Bottom line: Wilton is a "call first" town, not a "figure it out yourself" one.