Central Oregon has always lived with wildfire risk. But starting April 1, 2026, that risk is now written into the building code. Deschutes County and the City of Sisters have adopted Section R327 of the Oregon Residential Specialty Code — a set of home-hardening requirements for new residential construction designed to reduce the chance of a home igniting during a wildfire event. The City of Bend is actively moving toward adoption as well. If you are building, buying, or insuring property in Central Oregon, this matters — and it matters right now.
What Is R327?
R327 is a section of the Oregon Residential Specialty Code focused on "home hardening" — building new homes in a way that resists ignition from embers, radiant heat, and direct flame contact. It applies to new 1–2 family dwellings and new accessory structures (garages, shops) in participating jurisdictions. It does not apply to existing homes, remodels, additions, or commercial buildings.
Where R327 Applies Right Now
As of April 1, 2026, R327 is in effect for new residential building permit applications in:
Unincorporated Deschutes County
In effect April 1, 2026
City of Sisters
In effect April 1, 2026
City of Bend
Adoption in progress — spring 2026
The Bend City Council directed staff to move forward with local adoption at its February 25, 2026 work session. The proposed ordinance was scheduled for the April 1, 2026 City Council meeting. Once adopted, R327 standards will apply to new residential building permit applications submitted on or after the effective date, aligning Bend with the regional approach already in place in Deschutes County and Sisters.
Oregon's Building Codes Division has also been working on statewide wildfire hazard mitigation standards. The state framework establishes the baseline that local jurisdictions like Deschutes County can opt into and implement locally. This is not a temporary measure — it reflects a fundamental shift in how Oregon approaches residential construction in wildfire-prone areas.
What R327 Actually Requires
The core principle of R327 is simple: build it so embers don't ignite it. Research has consistently shown that most homes lost in wildfires are ignited by embers — not by direct flame contact. A home can be ignited by embers landing on a wood deck, in a gutter full of pine needles, or through an unscreened attic vent — even when the fire front is hundreds of feet away. R327 addresses each of these ignition pathways.
Fire-Rated Roofing
Class A or B roofing materials required. Metal, tile, and composition shingles meeting the standard are all acceptable.
Ignition-Resistant Siding
Fiber cement, stucco, metal, and other non-combustible or ignition-resistant exterior cladding materials.
Dual-Pane or Tempered Windows
Standard single-pane windows can crack and fail during radiant heat exposure, allowing fire to enter the home.
Ember-Resistant Vents
Attic vents, soffit vents, and foundation vents must be covered with 1/8-inch metal mesh to block ember intrusion.
Fire-Resistant Decks
Deck surfaces and attachments must use non-combustible or ignition-resistant materials to prevent ember accumulation and ignition.
Gutter and Eave Design
Gutters must be designed to reduce debris buildup. Enclosed eaves or non-combustible eave materials are required.
Important: R327 does not make a home fireproof. It is designed to slow fire spread, improve survivability, and work alongside defensible space and vegetation management. A hardened home in a well-maintained defensible space zone has a significantly better chance of surviving a wildfire — but no code can eliminate all risk.
What R327 Does NOT Apply To
It is equally important to understand the limits of R327. The code applies only to new construction — it does not require existing homeowners to retrofit their homes. Specifically, R327 does not apply to:
- ✗Existing homes — no retrofit requirements
- ✗Remodels or additions to existing homes
- ✗Small detached accessory structures under 400 square feet
- ✗Commercial buildings (governed by separate codes)
- ✗Apartment buildings and mixed-use structures (Oregon Structural Specialty Code applies)
If you own an existing home in Central Oregon, you are not required to make any changes under R327. However, the voluntary home hardening steps outlined in the code are exactly the kinds of improvements that can make your home more insurable — and potentially more attractive to carriers who are increasingly scrutinizing wildfire exposure before writing or renewing policies.
Defensible Space: The Other Half of the Equation
R327 focuses on the structure itself — the roof, siding, windows, and vents. But home hardening alone is only half of the wildfire resilience picture. Defensible space — the buffer zone of managed vegetation around your home — is equally critical. The City of Bend has indicated it will address defensible space requirements separately, as they involve multiple departments and more local discretion than the building code standards.
The infographic below illustrates the key defensible space practices that every Central Oregon homeowner should implement, regardless of when their home was built:

The key defensible space practices include: keeping grass mowed to under 4 inches, spacing trees at least 10 feet from the house and from each other, removing flammable plants within 5 feet of the home, clearing leaves and debris from gutters and roofs, using non-combustible fencing near the structure, and ensuring your driveway is accessible to first responders with a visible address sign. These steps cost relatively little but can dramatically improve your home's chance of surviving a wildfire.
What This Means for Your Insurance
From an insurance standpoint, R327 and defensible space practices matter more than ever. The wildfire insurance market in Central Oregon has tightened significantly over the past several years. Carriers are scrutinizing wildfire exposure at the property level — looking at roof materials, siding type, proximity to vegetation, and defensible space — before deciding whether to write or renew a policy.
Improved Insurability
Homes built to R327 standards — or voluntarily hardened to those standards — are more attractive to carriers and may qualify for coverage that would otherwise be unavailable.
More Carrier Options
A hardened home with documented defensible space may expand the number of carriers willing to write your policy, giving you more choices and competitive pricing.
Underwriting Impact
Carriers increasingly use aerial imagery and property data to assess wildfire risk. Mitigation improvements can positively influence underwriting decisions and premium calculations.
The New Standard
R327 is becoming the baseline expectation for new construction in high-risk areas. Homes built to this standard are positioned for the insurance market of the next decade.
We are already seeing carriers look closely at wildfire mitigation when evaluating properties in Deschutes County, Jefferson County, and Crook County. If you are building a new home, buying an existing home, or simply trying to understand your current coverage options, the steps you take on wildfire mitigation directly affect what is available to you in the insurance market.
What Existing Homeowners Can Do Right Now
Even though R327 does not require existing homeowners to retrofit their homes, taking voluntary steps toward home hardening is one of the most effective things you can do to protect your property and improve your insurance options. Here is a practical starting point:
- 1
Assess your roof
If your roof is aging or made of wood shake, consider replacing it with a Class A or B material — metal roofing, composition shingles, or tile — when it is time for replacement.
- 2
Screen your vents
Install 1/8-inch metal mesh screens on all attic, soffit, and foundation vents. This is one of the most cost-effective improvements you can make.
- 3
Clear your gutters and roof
Remove leaves, pine needles, and debris from gutters and roof surfaces before fire season each year. Debris-filled gutters are a primary ignition point.
- 4
Create your Zone 1 defensible space
Within 5 feet of your home, remove all flammable plants, mulch, and debris. Replace with gravel, pavers, or non-combustible ground cover.
- 5
Manage your Zone 2
From 5 to 30 feet, thin vegetation, space trees at least 10 feet apart, and remove dead material. From 30 to 100 feet, reduce fuel density and remove ladder fuels.
- 6
Document your improvements
Take photos and keep records of any mitigation work you do. This documentation can be valuable when talking to insurance carriers about your property.
Our Take: This Is the New Normal
At Prineville Insurance, we have been helping Central Oregon families and businesses navigate the wildfire insurance landscape for decades. The adoption of R327 is a significant and positive development — it establishes a clear, consistent standard for new construction that will make homes more resilient and the insurance market more stable over time.
For homeowners, builders, and buyers in Central Oregon, the message is clear: wildfire mitigation is no longer optional. It is becoming the baseline expectation — in the building code, in the insurance market, and in the community. The good news is that the steps required are well-defined, achievable, and genuinely effective.
Whether you are building a new home, buying an existing property, or simply trying to understand how wildfire risk affects your current coverage, we are here to help. As an independent agency, we work with multiple carriers and can help you understand how your property's wildfire mitigation measures affect your options and pricing. We serve clients across Bend, Redmond, Sisters, Prineville, and communities throughout Central Oregon.
Questions About Wildfire Insurance in Central Oregon?
We are happy to walk through how R327 and wildfire mitigation improvements could impact your insurance options. Whether you are building, buying, or reviewing your current coverage, our team is here to help.










