Off-Grid Living in Greene County, New York

If you're eyeing a piece of land in Greene County, New York for an off-grid setup, the first thing I want you to understand is a structural quirk: Greene County itself has no countywide zoning code. Zoning and building permitting happen at the town or village level, not the county. The Greene County Department of Economic Development, Tourism and Planning does have a role, but it's an advisory one, reviewing certain local zoning actions under state General Municipal Law Sections 239-L and 239-M. The actual rules that govern what you can build, where, and how, live in the code of whichever town your land sits in, whether that's Cairo, Catskill, Coxsackie, Durham, Ashland, Jewett, or Prattsville, among others.

That means I can't give you one blanket answer for "can I put a tiny home or RV on raw land in Greene County." I found no official county-level page addressing tiny homes or ADUs, and while some non-official blogs claim treatment as ADUs, I'm not going to cite those as authoritative. You'd need to check the specific town's zoning code, often hosted on eCode360 or Municode, to know for sure.

Building permits work the same way: each town runs its own Code Enforcement office, applying the New York State Uniform Fire Prevention and Building Code locally. There's no single county building department to call.

Septic is where the county does have direct authority. The Greene County Health Department's Environmental Health Division reviews and approves private sewage disposal permits before construction, applying the state DOH's Appendix 75-A wastewater treatment standards. Composting toilets aren't separately addressed in what I found, so I'd assume the same office and state framework apply. Greywater reuse is similarly murky, no county-specific page exists, so I'd expect it to fall under that same health department review if you're building any kind of reuse system.

Rainwater harvesting looks fine, nothing in Greene County's official materials restricts it beyond whatever baseline state rules apply to tank storage. Private wells follow the state DOH Appendix 5-B standards and must go through a DEC-registered well contractor, with the Greene County Health Department handling any local approvals or waivers.

Living fully off the utility grid isn't addressed at the county level either. Whether a town requires a permanent dwelling to connect to electric or gas service would be set, or not set, in that town's own code. This is genuinely a "call the town" situation, not a "check the county" situation, on several of these dimensions.

My honest read: Greene County's health department is your clearest, most confirmable point of contact for septic and well questions. Everything zoning- and building-related depends entirely on which town you're in, so budget time to track down that town's specific code before you commit to land.