Off-Grid Living in Cumberland County, New Jersey

I've been digging into what off-grid living actually looks like in Cumberland County, New Jersey, and the short version is: the county itself stays out of most land-use decisions, but it plays a big role in two things that matter a lot for off-grid life, wells and septic.

Zoning is a township matter, not a county one. Cumberland County has no countywide zoning ordinance. The Cumberland County Planning Board reviews subdivisions and keeps a County Master Plan, but whether you can live on raw land, park an RV as a residence, or put up a tiny house is decided by your specific municipality, whether that's Bridgeton, Vineland, Millville, Fairfield Township, Upper Deerfield, Lawrence Township, or another. If part of your land sits in the Pinelands Area, the state Pinelands Commission adds another layer of review on top of whatever your town says, since the Commission has certified Cumberland's municipal plans as conforming to its Comprehensive Management Plan.

Tiny homes and RVs aren't addressed in any county ordinance I could find. Some townships may allow a tiny house as an accessory dwelling unit, but I couldn't confirm that officially, so call your township zoning office before you plan around it.

Building permits run through each municipality's construction office under New Jersey's statewide Uniform Construction Code. There's no separate county building code layered on top.

Septic is where the county gets hands-on. The Cumberland County Department of Health runs an active septic permitting program covering Bridgeton City and most of the townships (Vineland runs its own separate health department for this). The Health Department reviews plans against the state's septic code and does field inspections. Composting toilets aren't addressed specifically, so I'd expect the Health Department to treat one as an alternative system needing their sign-off.

Greywater and rainwater harvesting are both genuinely unclear here. I found no dedicated county or municipal rule on either. Greywater would likely get folded into septic review rather than handled separately, and rainwater collection just isn't addressed anywhere I could find at the county level.

Private wells are permitted and actively managed by the same County Health Department, through its Safe Drinking Water Program, which reviews permit applications and inspects drillers' work against state code.

Going fully off-grid (no utility hookups) isn't addressed by a standalone county rule either. Practically speaking, since the county already has working well and septic permitting programs, an off-grid property can usually satisfy the water-supply and sewage-disposal requirements a municipal Certificate of Occupancy demands, but whether your town requires utility hookups at all is a municipal building-department call, not a county one.

Bottom line: for zoning and building specifics, call your township. For wells and septic, the county Health Department is your authority.