Oregon's Defensible Space Rules in 2026: What Mid-Valley Property Owners Actually Need to Know

Oregon’s defensible space rules changed dramatically in 2025

Senate Bill 83, signed in 2025, repealed Oregon’s statewide wildfire hazard map and the defensible space mandate tied to it. The map, first released in 2022 and revised in 2023, had assigned a wildfire risk classification to every property in the state. Rural landowners contested those classifications and their effect on insurance and building code. The 2025 legislation removed the map, the mandatory defensible space standards, and the wildland-urban interface rules built on it.

This history matters for one practical reason. Articles published before mid-2025 still present defensible space in Oregon as a statewide legal requirement. That framing is now outdated. The obligation today is local and voluntary, backed by insurance pressure rather than a state mandate.

Is defensible space required by law in Oregon?

Defensible space is not currently mandated statewide in Oregon. A requirement applies to your property only if your local government adopts the Oregon State Fire Marshal’s model code and your land falls within its scope. Without local adoption, defensible space is strongly recommended rather than legally enforced.

The distinction between required and recommended trips up many property owners. Under Senate Bill 83, the State Fire Marshal built a model code that local jurisdictions may adopt through their own process. A city, county, or fire district that adopts it can then administer and enforce those standards inside its boundaries. Marion County, Polk County, and individual fire districts each decide separately. The accurate first step is a call to your local fire agency to ask what, if anything, it has adopted.

What the Oregon State Fire Marshal’s model code recommends

The model code centers on a five-foot noncombustible zone next to structures, plus fuel reduction outward from there. The Oregon State Fire Marshal designed it as a research-based baseline that communities can adopt as written or strengthen locally. Four practices sit at its core:

Keep the first five feet noncombustible. Use gravel, pavers, or bare soil against the house and deck. Embers landing here ignite most homes, so this band carries the highest priority.

Remove dead vegetation. Strip dead grass, cured brush, and accumulated leaf and needle litter from the yard, roof, and gutters.

Space trees and shrubs apart. Break up continuous fuel so fire cannot travel plant to plant toward the structure.

Cut back ladder fuels. Remove low limbs and the brush beneath tree canopies that lets a ground fire climb into the crown.

One point trips up Oregon readers who research this topic. The familiar 0-to-5, 5-to-30, and 30-to-100 foot zones belong to California’s framework under CAL FIRE, not Oregon’s code. Oregon anchors its approach to the five-foot noncombustible band with perimeter distances set by hazard level locally. Our companion guide on defensible space zones breaks down how the concentric bands work in practice.

Why insurance now drives wildfire risk decisions

With the state map repealed, insurers and lenders assess wildfire risk on their own terms, which makes property-level mitigation the factor you control. After the 2020 Labor Day fires destroyed thousands of Oregon homes, several carriers restricted new policies in higher-risk areas. Removing the state map did not remove that underwriting behavior. Insurers still evaluate each property.

Senate Bill 85 moves in the same direction. It directs state agencies to work with the insurance sector on premium discounts and incentives for owners who reduce wildfire risk through defensible space, home hardening, and community programs. The measure encourages carriers to reward documented mitigation. Property owners who create and maintain defensible space put themselves in a stronger position with both insurers and firefighters, who need a defendable structure to make a stand.

Does this apply to my Salem-area property?

Defensible space matters most for Mid-Valley properties on the rural and foothill edges, where homes meet wildland vegetation. The wildland-urban interface describes exactly that boundary: a concentration of dwellings near forest, brush, or grassland. Properties around Silverton, Stayton, Dallas, and the wooded margins outside Salem and Keizer sit closest to that condition.

Three signals suggest your land warrants attention: dense brush or blackberry thickets along the property, conifers with low limbs near the house, and slopes that carry fire uphill toward structures. Overgrown vegetation is the raw material of wildfire risk, and it accumulates fastest on neglected or newly purchased rural parcels. Professional wildfire mitigation services handle the heavy fuel reduction, ladder-fuel removal, and brush thinning that bring a property in line with the model code’s intent.

How blackberry and brush raise the risk on Willamette Valley land

Himalayan blackberry thickets and dense brush act as both surface fuel and ladder fuel, which makes them a priority in any fuel-reduction plan. Dead canes inside a mature blackberry patch dry into a dense mass of fine fuel that ignites fast and burns hot. When that thicket grows beneath trees, it forms a continuous path from the ground into the canopy.

Willamette Valley properties collect this fuel quickly. Himalayan blackberry, an aggressive invasive across the Pacific Northwest, spreads from a single plant into a six-square-yard thicket in under two years, according to Oregon State University Extension. Removing those thickets does double duty: it reduces wildfire fuel and reclaims usable land.

When to reduce fuel on a Mid-Valley property

The strongest window for fuel reduction runs from late winter through early summer, before the Valley dries and fire restrictions tighten. Oregon’s 2026 fire season took effect on , so heavy work done earlier avoids the hot, dry conditions that raise equipment spark risk. Soil also stays moist into spring, which makes root and brush removal cleaner.

Timing also governs debris disposal. During high and extreme fire danger, open debris burning is prohibited, and open burning is banned year-round inside the Salem-Keizer Urban Growth Boundary. Chipping and hauling often replace burning where flames are restricted. Confirm current conditions with your local fire district before disposing of any material by fire.

Protect your Mid-Valley property before peak fire season

Noosh reduces wildfire fuel on properties across Salem, Keizer, and the surrounding Marion and Polk county areas. Our crews remove brush, thin ladder fuels, and bring overgrown land in line with defensible space guidance. Request a wildfire mitigation estimate and start the season with a defendable property.

Noosh Stump Removal handles wildfire mitigation across Salem and the Mid-Willamette Valley. See our wildfire mitigation service or get an estimate for your property.