Off-Grid Living in Sullivan County, New York

Sullivan County, New York is a patchwork when it comes to off-grid living, and I want to be upfront about that from the start: there is no countywide zoning code here. The county's Division of Planning, Community Development and Environmental Management offers technical assistance and reviews certain referrals, but it does not issue zoning or building permits itself. That job belongs to each of the county's 15 towns (plus villages and hamlets), and every one of them has its own zoning code and Code Enforcement Officer. So the honest answer to almost every question below is "it depends which town you're in."

Zoning: Each town (Town of Sullivan, Town of Tusten, Town of Fremont, and so on) sets its own zoning rules and enforces them locally. If you're eyeing a parcel, your first call needs to be that specific town's code enforcement office, not the county.

Dwellings, tiny homes, RVs: I could not confirm a countywide standard on this. It's governed town by town, and absent a specific local ordinance saying otherwise, I'd assume the general New York baseline applies, meaning RVs and tiny homes on wheels are typically not treated as permanent dwellings outside of designated parks. Check the specific town's code, many are hosted on eCode360.

Building permits: Towns enforce the New York State Uniform Fire Prevention and Building Code through their own Code Enforcement Officers. In the Town of Tusten, for example, the Building Inspector issues permits for structural work including new homes, larger sheds, garages, wells, and septic systems, and licensed electricians are required countywide. Expect inspections at multiple stages before you get a Certificate of Occupancy.

Septic and composting toilets: New York State sets the baseline standard (Appendix 75-A, administered by the state Department of Health), and Sullivan County Public Health Services handles the actual permitting locally through an online application portal. I did not find published details on specific local fees or processing timelines, so confirm those directly with the county health department.

Greywater and rainwater: I found no Sullivan County or town-specific rules on either. Rainwater harvesting appears to be permitted under the general state baseline. Greywater reuse is more restricted under state rules, particularly for indoor reuse, but I did not confirm any added local restriction here.

Wells: Well contractors must be registered with the state DEC under Environmental Conservation Law, and your local health department (the county's) has jurisdiction over approving any deviation from standard well-siting rules. Expect to need a driller's certificate and water test as part of your building or septic permit review.

Utilities: I found no county or town rule explicitly requiring grid hookup for a permanent home, but this hasn't been confirmed across all 15 towns individually, so check your specific town's construction code chapter.

Bottom line: in Sullivan County, the town you choose matters as much as, if not more than, the county itself.