Off-Grid Living in Sudbury, Vermont

I've been digging into what it actually takes to live off-grid in Sudbury, Vermont, and the short version is: this town is zoned, so you're not dealing with a blank slate. On top of that, Vermont's state environmental rules layer on for anything involving water or waste.

Zoning. Sudbury adopted a Unified Development Ordinance (UDO), passed by voters in 2019 and amended several times since. The Sudbury Select Board holds public hearings on changes to it, and it's administered locally. The UDO sets up zoning districts, a table of uses, dimensional standards (lot size, setbacks, height), and development review standards. Historically a 10-acre threshold has applied to subdivision review through the zoning commission. Bottom line: whatever you want to do with raw land in Sudbury, check it against the UDO's table of uses first. I couldn't pull the specific dwelling-size, tiny-home, or RV-occupancy language out of the version I reviewed, so that piece is genuinely "ask the town" territory, not something I can spell out here.

Building permits. Vermont has no statewide residential building code for owner-occupied single-family homes, that's a real state-level baseline, not something Sudbury invented. But Sudbury's UDO has its own administration and enforcement article, which is where any local permit trigger lives. So the "do I need a permit" answer runs through the Town Clerk's office and the Zoning Administrator function, not a state building inspector.

Septic and composting toilets. This is where the state steps in hard. Vermont's DEC Wastewater System and Potable Water Supply Program has had universal jurisdiction over new wastewater systems and water supplies since 2007, and that explicitly covers composting and incinerating toilets, which need an Agency of Natural Resources permit. I found no Sudbury-specific carve-out from this.

Greywater falls under that same DEC program statewide; I didn't find any Sudbury-specific greywater rule, so treat it as state-regulated by default.

Rainwater harvesting looks genuinely permitted, I found nothing in Sudbury's ordinance or the state baseline restricting catchment for non-potable use.

Wells. New potable wells need a DEC permit at construction, though repairs, pump replacement, and deepening an existing well don't require a new one. No separate Sudbury well ordinance turned up.

Utilities. Nobody's forcing you onto the grid, in Sudbury or under Vermont law. But going off-grid doesn't get you out of the UDO's occupancy standards or DEC's permitting for whatever septic, well, or composting system you install.

Because Sudbury doesn't seem to have its own dedicated municipal website, the Town Clerk's office is really your front door for zoning questions here.