Defensible Space in Utah

What changed on January 1, 2026

Utah’s wildland-urban interface law — passed as HB 48 — took effect at the start of 2026. Two things happened. First, every city and county had to adopt a WUI code and an official WUI risk map, so “am I in the interface?” now has a legal answer with your address on it. Second, the state attached money to risk: homeowners in mapped high-risk areas pay a state fee — a flat $20 to $100 based on square footage through 2027, shifting to a risk-based fee tied to a property “triage score” starting in 2028.

The part that matters for a landowner deciding what to do about the oak behind the house: the law is built so that completing mitigation lowers your exposure. The mitigation actions on your property’s assessment — fuel removal, defensible space, keeping the zone maintained — are the lever. You can check where your ground falls on the state portal at wildfirerisk.utah.gov, and your city’s building or fire department holds the adopted local code.

The insurance side of it

Insurers now use the same WUI boundary the state does, and mitigation data is shared with them. Utah’s rules also require disclosure when a wildfire-driven premium jumps more than 20% or coverage gets dropped — which tells you how carriers are treating unmitigated WUI ground. Along the bench communities, wildfire questions on renewal paperwork stopped being theoretical a while ago.

We’ll be straight with you the way we are about oak regrowth: nobody can promise that clearing brush lowers your premium. What documented fuel work does is give you a case — dated photos of a cut-to-standard fuel modification zone are a very different renewal conversation than a hillside of cured oak against the deck. We document every job for exactly that reason.

What the standard actually requires

The adopted codes center on two numbers. A 30-foot fuel modification zone around the structure, or to the lot line if the lot is smaller than that — ground where continuous brush is broken up, ladder fuels are gone, and what vegetation stays is spaced and maintained. And 10 feet of spacing between tree crowns, so fire can’t walk canopy-to-canopy into the eaves. Your lot assessment translates those numbers onto your specific ground.

On a Wasatch Front bench lot, that translation is usually blunt: the Gambel oak thicket growing against the house has to be cleared or thinned hard, the juniper next to the propane tank has to go, and the cheatgrass-and-sage slope needs a maintained break. Our scrub oak guide covers why the oak is the main event on most lots.

What a mulching crew does — and doesn’t do

The clearing half of defensible space is machine work, and it’s what we do: fuel modification zones cut around structures, oak and juniper thinned to crown spacing, ladder fuels ground out from under keeper trees, and fuel breaks run along property and subdivision edges. Everything grinds to mulch in place — which matters here, because open burning is heavily restricted along the Wasatch Front and a burn pile of cleared brush is a problem, not a solution. The mulch layer also holds the slope and slows the cheatgrass that would otherwise claim bare dirt.

What we don’t do: WUI assessments, home hardening (vents, roofing, decking, ember screening), prescribed burns, or insurance consulting. Certified wildfire mitigation specialists handle assessments and hardening, and pairing their plan with our machine is the right order of operations — they define the standard on your lot, we cut to it, everyone documents.

Who pays for it

As of now there’s no state cost-share that writes homeowners a check for defensible space — mitigation on private lots is on the owner, which is exactly why the fee-reduction mechanism exists. Community-level money does exist (state WUI preparedness funds and federal Community Wildfire Defense Grants flow through cities, counties, and HOAs), so if you’re on an HOA board or a community fire council staring at a shared fuel problem, that’s a real channel — and shared-boundary fuel breaks are work we can price at scale.

What it costs and how often it recurs

Fuel-reduction mulching prices like the rest of our clearing work: $1,000 to $2,750+ per acre by density, slope, and access, quoted flat after a free walk-through — full brackets are on the pricing page. Most defensible-space jobs are less than an acre of actual cutting, so small-lot work runs on the hourly structure instead.

Plan on maintenance. Oak resprouts inside three years, cheatgrass cures every summer, and a fuel modification zone only counts if it’s current. A light re-mulch every two to three years runs roughly $300 to $700 per acre — our land management guide covers how the cycles work.

We’re based in West Jordan and run fuel-reduction work across the bench and canyon-mouth country where the WUI maps run hottest — Herriman, Draper and Suncrest, Sandy, Alpine, Eagle Mountain, and up into the Wasatch Back. Send photos of the ground you’re worried about and we’ll quote it flat.