Off-Grid Living in Orange County, New York

I'll be straight with you up front: Orange County, New York doesn't have a countywide zoning code. That single fact shapes almost everything else on this page, so keep it in mind as you read.

Zoning is a town thing here. The County has no unified land use ordinance. Instead, each of Orange County's roughly twenty towns (Warwick, Chester, Woodbury, Monroe, Middletown, Newburgh, and so on) writes and enforces its own zoning code. The County Planning Department does step in when a town proposes certain zoning or subdivision actions, reviewing them under New York State's General Municipal Law §239 referral process, but that's an inter-community impact review, not the County setting the rules. If you're scouting land, the town's zoning office is who you actually need to talk to.

Tiny homes and RVs follow the same pattern. I couldn't find any countywide standard for occupying a tiny house or RV as a residence. It's governed town by town, and most towns publish their codes on eCode360 or Municode. Expect RVs to generally be treated as travel trailers (not permanent dwellings) and foundation-built tiny homes to fall under standard residential building code, but confirm specifics with the town.

Building permits are also issued locally. Orange County doesn't run its own building department for unincorporated land; each town's Code Enforcement Officer handles permits and inspections under the New York State Uniform Fire Prevention and Building Code.

Septic is where the County actually has real teeth. The Orange County Department of Health reviews and approves sewage disposal designs, applying the state sanitary code (10 NYCRR Appendix 75-A) plus its own design standards. Cesspools are explicitly not permitted, and percolation testing is required before a design gets approved. A licensed engineer or design professional has to certify the installation to the County and the local code officer. Composting toilets aren't addressed in a county-specific ordinance; they fall under the state health framework.

Greywater has no Orange County carve-out that I found, so it inherits New York's general baseline, which technically allows some reuse but is notoriously hard to implement legally, especially for anything involving toilet flushing.

Rainwater harvesting looks fine. No county restriction turned up in my research, so ordinary non-potable collection and storage should be permitted under the state baseline.

Private wells are permitted, with the County playing an administrative role. Wells must be drilled by a state-registered contractor and meet NYS DOH Appendix 5-B standards, which the County hosts directly for local code enforcement officers. The Orange County Water Authority doesn't operate or regulate any public water systems, so it's mainly an advisory voice, recommending things like annual bacteria testing.

Going fully off-grid (no utility hookup) isn't banned countywide, but a certificate of occupancy typically requires an approved water supply and sewage system, which functionally means well-plus-septic at minimum. Grid electricity specifically doesn't appear to be mandated at the county level, but again, check your town's building code.

Bottom line: Orange County sets the water and septic rules; your town sets everything about zoning, dwellings, and permits.