Off-Grid Living in Montville, Connecticut

Montville, Connecticut is a zoned town, and that single fact shapes just about everything else in this guide. Unlike some rural Connecticut towns that never adopted zoning, Montville has had its own Zoning Regulations since 1970, adopted under the state's Zoning Enabling Act (Chapter 124 of the Connecticut General Statutes) and administered by the town's Planning and Zoning Commission. If you're picturing buying a raw lot and just living on it however you like, that's not how Montville works: the town divides land into districts (R-20, R-20-M, Commercial-1, Commercial-2, Light Industrial, Industrial, Government, plus a Route 32 Overlay), and each district has its own list of permitted uses and special-permit uses. You'd need to check which district your parcel sits in before assuming anything is allowed.

On dwellings, I didn't find a specific Montville ordinance addressing tiny homes or RVs used as permanent residences. Connecticut's state building code does have an allowance for very small dwellings, but that state provision still requires sign-off from local zoning and building officials, so Montville's Planning and Zoning Commission and Building Department would have final say on whether a tiny house or RV counts as a legal dwelling on your lot. I'd call this one restricted by default until you confirm otherwise locally.

Building permits themselves are handled by Montville's own Building Department, which enforces the State of Connecticut Building Codes and issues building, electrical, plumbing, mechanical, demolition, and change-of-occupancy permits. That's a town office enforcing a state code, a pattern you'll see repeated in Connecticut.

Septic systems and private wells are not handled by the town at all. Montville is a member of the Uncas Health District, a regional public health agency that licenses and regulates sewage disposal and well installation under the Connecticut General Statutes and the Connecticut Public Health Code. If you're planning a septic system or drilling a well, Uncas Health District is who you'll deal with, not Montville Town Hall.

Greywater reuse has no Montville-specific rule that I found; it falls back to whatever the state framework says, which I'd describe as unclear until confirmed directly. Rainwater harvesting looks permitted, since I found no town restriction beyond the general state building code provision that already allows it.

Bottom line on going fully off-grid here: it's technically restricted in practice, not because there's one ordinance banning it, but because occupancy of any dwelling in Montville tends to require compliance from multiple offices working together. Zoning and wetlands setbacks come from Planning and Zoning, wastewater and well compliance comes from Uncas Health District, and construction and safety compliance comes from the Building Department. Skipping septic or well permitting to live disconnected would likely run into a certificate-of-occupancy problem down the line.