What is defensible space? Oregon standards, not California's
Defensible space is the buffer between your house and anything that can carry fire toward it. It is the single highest-return wildfire work most Bend-area homeowners can do, and Oregon now has its own standards for it. We are going to skip the California code you will see all over the internet and stick to what applies here.
The three zones
The idea comes from decades of fire research on how homes ignite. Oregon’s defensible space guidance and the Oregon State Fire Marshal’s model organize it into zones measured outward from your house.
Zone 0, the first five feet. Think of it as the moat around the castle. Zero fuel load. Noncombustible ground only: rock, gravel, pavers, or bare mineral soil. No bark or mulch of any kind, no shrubs against the wall, no firewood stacked on the deck, no combustible fence touching the house. This is the most important five feet on your property, and it is the one people skip.
Zone 1, five to thirty feet. Lean, clean, and green. Well-spaced, well-watered, maintained plants. Break up continuous vegetation so fire cannot run plant to plant to your siding, and remove ladder fuels, the low branches that let a ground fire climb into the tree canopy.
Zone 2, thirty to one hundred feet. Reduce and space fuels, adjusted for slope. Fire moves faster uphill, so on a slope the cleared distance increases. The goal here is not a moonscape, it is breaking up the fuel so a fire arrives smaller and slower.
Oregon’s rules, specifically
ORS 477.025 and the Oregon State Fire Marshal’s defensible space guidance set the statewide framework, including the five-foot noncombustible zone.
In the City of Bend, the Flammable Vegetation Code already applies to your property today. Lots of half an acre or less must clear all flammable vegetation. Larger lots must keep a 20-foot cleared fuel break around the property, including rights of way and easements. Limbs overhanging structures or within ten feet of the eaves get cut back, and trees are limbed up five to six feet. The maximum penalty runs $750 per day, per lot.
ORSC R327, Oregon’s wildfire building code, took effect April 1, 2026 in unincorporated Deschutes County and the City of Sisters, and May 15, 2026 in the City of Bend. That one is for new construction, not existing homes. More on that in our Deschutes County guide.
SB 1551 (2026) means your HOA can no longer block the Zone 0 work. See Understanding Oregon SB 1551.
Worth knowing: Bend’s vegetation code is, in places, stricter than the state model, so meeting the state standard does not automatically meet the city’s.
Why Zone 0 is the one that matters most
Embers. Most homes that burn in a wildfire do not ignite from a wall of flame. They ignite from embers landing in receptive fuel: bark mulch against the foundation, dry needles in a corner, a doormat, a wood fence. Bend Fire puts the ember share of ignitions around 90 percent, and embers can travel up to three miles ahead of a fire. Clearing that first five feet removes the landing pad. It is cheap, it does not require a permit, and it does more than almost anything else you can do.
Maintenance is critical
Defensible space is not one and done. Needles drop, plants grow, firewood comes back. Walk your Zone 0 every spring: no mulch in the first five feet, gutters and roof valleys clear, nothing combustible stored against the house, and vent screens intact. A property that was compliant last summer can drift out of compliance by the next.
SafeHaven Fire Defense is Central Oregon’s GC-licensed wildfire hardening company (Oregon CCB #259806), serving Bend, Sisters, Redmond, Sunriver, Tumalo, La Pine, and Deschutes County. They are Certified Wildfire Mitigation Specialists (CWMS) and NFPA Firewise trained. Call (541) 241-6157 or email [email protected] to schedule an assessment.
