Off-Grid Living in Stevens County, Washington

I've been digging through Stevens County, Washington's official rules for anyone thinking about building off-grid out here, and the short version is: the county isn't hostile to off-grid living, but it's not a free-for-all either. Here's what I found, dimension by dimension, and who to call when the paperwork gets confusing.

Zoning. Stevens County zones land under Title 3 of the County Code, administered by the Planning Division within the Land Services Department. Whether you can even occupy a raw parcel depends entirely on that parcel's zone, plus any critical-area or shoreline overlays. There's no blanket "off-grid is fine" or "off-grid is banned" rule here, it truly varies parcel by parcel, so check the county's Interactive Land Use & Zoning Map or call Planning before you buy.

Dwellings, tiny homes, and RVs. This is where the county gets strict. Per the Building Division's own FAQ, every dwelling unit, including hunting cabins and seasonal cabins, must have a permanent on-site potable water source and an approved wastewater system, no matter the size or how often it's occupied. So a bare RV or an off-grid tiny house without those hookups can't legally serve as a year-round residence. The county points tiny-home builders to Washington State Labor & Industries for classification questions (site-built vs. park-model RV).

Building codes. Washington's State Building Code, adopted by the state legislature and the Building Code Council under RCW 19.27, governs construction here. Stevens County still has an old local ordinance from 1984 referencing outdated code editions on the books, but current permit reviews use the state-adopted model codes with Washington amendments, since state code takes precedence statewide.

Septic and composting toilets. The Northeast Tri-County Health District (NETCHD), which covers Stevens, Ferry, and Pend Oreille counties, permits on-site sewage systems and does recognize composting toilets as one "Other" system type. But don't assume a composting toilet alone gets you off the hook, the county still requires an approved wastewater disposal system for the dwelling itself.

Greywater and rainwater. I couldn't find a Stevens County-specific ordinance for either. Greywater falls under the state's WAC 246-274, administered locally by NETCHD. Rainwater harvesting for on-site, non-potable use generally doesn't need a water right under Washington Department of Ecology policy, but there's no distinct county page spelling out details, so I'd confirm specifics with NETCHD or Ecology directly.

Wells and water rights. This is genuinely complicated in Stevens County because of the Hirst decision. Outside the Colville River (WRIA 59) and Little Spokane River (WRIA 55) watersheds, domestic wells under 5,000 gallons/day generally don't need a state permit. Inside those watershed boundaries, separate mitigation rules apply, addressed through the county's 2020 Watershed Implementation Plan approved by Ecology. WRIA 59 in particular is largely fully appropriated after a century of water rights, so availability is genuinely tight. Talk to Ecology's Eastern Regional Office or the Stevens County Water Conservancy Board before drilling.

Bottom line on utilities. No ordinance flatly bans off-grid living, and solar power isn't separately restricted, but the potable-water-plus-approved-wastewater requirement for any dwelling unit means fully "disconnected" permanent residency isn't really on the table here without meeting those two conditions.