Off-Grid Laws in Oregon

I'll be upfront: Oregon does not have one single "off-grid law" you can point to. What you actually run into is a layered system: the state sets outer boundaries through the Department of Land Conservation and Development (DLCD), the Department of Environmental Quality (DEQ), the Building Codes Division (BCD), and the Water Resources Department (OWRD), and then your county (sometimes your city) decides what's actually allowed on a given parcel. That mix is why "can I live off-grid in Oregon" doesn't have a one-line answer, it depends heavily on which county you're in.

Zoning and whether you can occupy raw land at all

This is county turf. DLCD's statewide land-use goals, particularly Goal 14, constrain how counties zone rural land and how much development they can allow outside urban growth boundaries, generally through minimum parcel sizes and a one-dwelling-per-parcel limit. But whether your specific parcel can have a home, a tiny house, or an RV as a residence is a county planning department decision, informed by (but not identical to) the DLCD framework. Always start with your county's planning or community development office.

Dwellings: tiny homes and RVs

Oregon's legislature gave counties the option (via SB 1013) to allow RVs as rural rental dwellings, but it's opt-in, and each county that adopts it sets its own conditions around zoning and acreage. Some counties, like Deschutes and Lane, have built out RV-dwelling programs. Others haven't. And there's a cautionary tale here: Tillamook County was overruled by the state Land Use Board of Appeals (LUBA) for letting RVs function as permanent, year-round dwellings outside the proper framework, RVs there are now limited to temporary use unless in a licensed mobile home park. The lesson: don't assume an RV or tiny home is automatically a legal permanent dwelling just because it's physically parked, confirm with the county.

Building permits and codes

The state Building Codes Division sets Oregon's residential and plumbing specialty codes, but permits are issued locally. In practice, before a county will issue a permit for a dwelling, they typically want to see proof of a safe water supply (often a recent well test) and an approved way to handle wastewater. That requirement holds whether or not you plan to hook up to the grid.

Septic and composting toilets

DEQ runs the statewide Onsite Wastewater Management Program governing septic system design, installation, and maintenance. In most of Oregon's 36 counties, DEQ contracts the actual permitting out to the county; DEQ handles it directly only in Curry, Jackson, and Josephine counties. Composting toilets are explicitly legal under Oregon statute and BCD rule, but they still require a permit, and you're required to have an approved greywater disposal path (or sewer connection) even if you're not using conventional plumbing for blackwater. One quirk worth knowing: DEQ guidance says that if your property sits in a sewer district, you may still need a sewer hookup even with a composting toilet.

Greywater reuse

DEQ runs a dedicated statewide greywater program with three permit tiers depending on volume and use (Tiers 1 and 2 are general permits, easier to get). Reusing greywater without going through this permitting is not something the notes support as legal, so plan on getting the DEQ permit.

Rainwater harvesting

Good news here: collecting rainwater off an artificial impervious surface like a roof into a tank is exempt from Oregon's water-rights permitting system, as long as the water never touches the ground before it's stored. But that exemption is about water rights, not about plumbing, if you're piping that water into your house, you still need local building, plumbing, and electrical permits.

Private wells

Oregon exempts domestic well use from full water-right permitting, up to a statutory daily cap, and also exempts modest lawn/garden irrigation. But the exemption from water-rights permitting doesn't mean the well itself is unregulated, well construction has to meet the state's minimum well construction standards, enforced through OWRD.

Living fully off the utility grid

Disconnecting from electric or municipal utilities isn't itself illegal in Oregon. But "off-grid" doesn't mean "unregulated." Every substitute system, well, septic or composting toilet, greywater, solar electric, gets its own layer of state and/or county rules, and a building permit will typically hinge on proving you've got an approved water source and legal waste disposal, regardless of grid status.

The honest bottom line: Oregon is workable for off-grid living, but it's a patchwork. Your county's planning department is going to be your single most important call before you buy land or move a tiny home onto it.