Off-Grid Living in Washoe County, Nevada

I've been digging into what off-grid living actually looks like in unincorporated Washoe County, Nevada, and the short version is: it's doable, but it's not a free-for-all. Everything below is about unincorporated Washoe County. If your parcel is inside Reno or Sparks city limits, their own city codes apply instead, so check that first.

Zoning and raw land. Washoe County runs 18 different regulatory zones, viewable on the county's EZ Maps tool, and what you can build or do on a parcel depends heavily on that designation. The county actively enforces against people just camping or living on raw land without a permitted dwelling, so don't assume you can buy vacant land and park a camper indefinitely.

RVs and tiny homes. Under Washoe County's nuisance code, an RV, travel trailer, or fifth-wheel cannot be used as a permanent dwelling. You can camp temporarily (the county allows short stretches with an annual visit cap), and an RV can serve as a temporary residence only if there's already a valid residential building permit issued for that property. Manufactured homes can sometimes work as a secondary/accessory dwelling in certain suburban zones, subject to size limits and administrative review under county code. Tiny houses aren't a separate legal category here; they're treated like any other dwelling and have to meet the adopted building code.

Building codes. The county has adopted the 2018 International Building Code family (residential, energy, mechanical, electrical, etc.) with local amendments, spelled out in County Code Chapter 100, with land development standards in Chapter 110. Any permanent structure needs a permit through the Planning and Building Division.

Septic and composting toilets. Septic systems are permitted but regulated by Northern Nevada Public Health's Environmental Health Services, starting with a test-trench inspection before you can design a system. Composting toilets fall under "non-sewered toilet" rules in the same framework, but I couldn't confirm detailed residential standards from official sources, so call NNPH directly.

Greywater. I couldn't find a specific Washoe County or NNPH greywater policy. It likely intersects with plumbing code and sewage rules, but treat this as unclear until NNPH or the Building Program confirms.

Rainwater. Nevada state law (AB 138) permits single-family rooftop rainwater collection for non-potable use, and I found no county rule restricting it, though UNR Extension recommends double-checking locally.

Wells. Domestic wells are exempt from state water-appropriation permitting, but Washoe County requires its own well construction permit through NNPH, and the well must be drilled by a state-licensed driller. Notably, water rights dedication is required before some building permits or subdivision approvals are granted, and where state and county rules differ, the stricter one wins.

Bottom line on utilities. Nothing bans disconnecting from the grid outright, but a legal permanent residence still needs a permitted building, an approved well or municipal water hookup, and an approved septic system. There's no shortcut around those three pillars.