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Defensible space and fire-safe tree clearance for Sacramento-area homes

Most of the Sacramento valley floor isn't forest, but grass, brush, and trees near homes can still carry fire — especially along the region's river corridors, open space, and foothill edges. "Defensible space" is the buffer you create around a building to slow fire and keep embers from igniting it. Here's what the official guidance says, which rules legally apply where, and how trees fit in — including when pruning is enough and when removal makes sense.

Does the state's 100-foot defensible space law apply to you?

California's main defensible-space statutes apply in specific mapped areas:

• Public Resources Code § 4291 covers buildings in the State Responsibility Area (SRA) — generally unincorporated land where CAL FIRE is responsible for wildfire protection.
• Government Code § 51182 applies the same core rules to occupied buildings in a Very High Fire Hazard Severity Zone designated by a local agency (cities and counties).
• Both apply to anyone who "owns, leases, controls, operates, or maintains" the building — so tenants can have obligations too (see landlords, tenants and HOAs).

To see whether your address is in the SRA or a hazard zone, use the State Fire Marshal – Fire Hazard Severity Zones (with map viewer). If your property isn't in a covered area, the state 100-foot rule may not legally apply — but local fire codes and weed-abatement rules still do (see the Metro Fire section below), and CAL FIRE's guidance is still a good safety checklist.

What the law itself requires (in covered areas)

Under Public Resources Code § 4291 and Government Code § 51182, the person responsible must:

• Maintain defensible space of 100 feet from each side of the structure, but not beyond the property line (unless a local rule requires it, and work on a neighbor's land needs their written consent).
• Remove any part of a tree within 10 feet of a chimney or stovepipe outlet.
• Keep trees and plants next to or overhanging the building free of dead or dying wood.
• Keep the roof free of leaves, needles, and other plant debris.

Importantly, the 100-foot fuel requirement doesn't apply to single specimen trees or other vegetation that are well pruned and maintained so they don't carry fire to the structure. Defensible space is about spacing and maintenance — not clear-cutting your yard.

CAL FIRE's zones: 0, 1 and 2

CAL FIRE's CAL FIRE – Defensible Space and CAL FIRE Ready for Wildfire – Defensible Space pages divide the 100 feet into three zones, working from the house outward.

Zone 0 — Ember-resistant zone (0–5 feet)

• Use hardscape like gravel, pavers, or concrete instead of combustible bark or mulch.
• Remove dead and dying plants, weeds, and debris (leaves, needles) from the roof, gutters, deck, porch, and stairs.
• Remove all branches within 10 feet of a chimney or stovepipe outlet.
• Limit combustible items on decks; move firewood and lumber to Zone 2; replace combustible fencing and gates attached to the house.

Status: state law directs the Board of Forestry to adopt regulations for this 5-foot ember-resistant zone. As of November 2026, Zone 0 isn't in effect: CAL FIRE's Ready for Wildfire page says it's "not legally required yet," and the Board of Forestry – Defensible Space Zones 0, 1 and 2 page says the Board is still working with the Office of Administrative Law on final review. Under Public Resources Code § 4291, once the rules take effect for new structures, existing structures get three more years. It's still CAL FIRE's top recommendation, because embers are a major way homes ignite.

Zone 1 — Lean, clean and green (5–30 feet)

• Remove all dead plants, grass, and weeds, and dead or dry leaves and pine needles.
• Trim trees regularly to keep branches at least 10 feet from other trees.
• Trim overhanging branches and keep them 10 feet from the chimney.
• Create separation between trees, shrubs, and things that can burn, such as patio furniture, wood piles, and play sets.

Zone 2 — Reduce fuel (30–100 feet)

• Mow annual grass to a maximum of 4 inches.
• Create horizontal space between shrubs and trees, and vertical space between grass, shrubs, and trees.
• Remove fallen leaves, needles, twigs, bark, cones, and small branches (a layer up to 3 inches deep may be allowed).
• Keep 10 feet of clearance to bare mineral soil around exposed wood piles, outbuildings, and propane tanks.

Where trees fit in: spacing, limbing up, and removal

• Vertical spacing ("ladder fuels"). CAL FIRE Ready for Wildfire – Defensible Space recommends trimming tree branches up to at least 6 feet from the ground, and multiplying a shrub's height by 3 for the clearance it needs below the lowest tree branch — a 5-foot shrub under a tree means limbing the tree up to about 15 feet.
• Horizontal spacing depends on slope and plant size; CAL FIRE publishes a spacing chart on the same page. Steeper slopes need more space.
• Dead and dying trees near the house are the clearest removal candidates — and dead wood is brittle and unpredictable to cut. See Dead or hazardous trees. Beetle-killed pines are common in the region; see Pine tree removal.
• Healthy trees usually don't need to come out. Thinning, limbing up, and keeping canopies off the roof and away from the chimney often meet the goal. CAL FIRE's CAL FIRE – Fire-smart landscaping page has plant selection and placement tips.
• Power lines: never prune near lines yourself; the utility handles line clearance — see Trees near power lines.

Sacramento Metro Fire: the local weed-abatement rule

If you're served by the Sacramento Metropolitan Fire District (much of unincorporated Sacramento County — Carmichael, Fair Oaks, Antelope, Arden-Arcade, Orangevale, and others), its Metro Fire Fire Prevention Standard 11 (rev. Jan. 2026, PDF) requires that all dry grass, brush, vines, or other dry vegetation be cleared for at least 30 feet from structures, combustible fences, vehicles, and combustible storage, with more required where terrain warrants it.

• Inspections run during the dry season, May through November (Sacramento Metro Fire – Weed Abatement).
• The standard sets a notice-and-inspection sequence before the district hires a contractor at the owner's expense, and lists a $118 administrative fee and a $159 inspection fee plus the abatement cost for noncompliance.
• Metro Fire doesn't handle complaints in Citrus Heights or Rancho Cordova (call those cities' code enforcement) or in the State Responsibility Area (CAL FIRE). It also says it won't process complaints about overgrown lawns or dead or dying trees as weed abatement (Metro Fire Fire Prevention Standard 11 (rev. Jan. 2026, PDF)).
• Questions: 916-859-4327 or the Metro Fire – Weed Abatement FAQs.

Inside the City of Sacramento and other cities (Folsom, Roseville, Elk Grove, and so on), check with that city's fire department for its local rules.

Fire safety doesn't cancel tree permits or bird protections

• Protected trees still need permits. A native oak or large protected tree near the house may require a permit to remove or prune — check Sacramento-area tree permit rules and Oak tree removal rules first. If a fire official orders clearance, ask how it interacts with the tree ordinance before cutting.
• Nesting birds. Spring clearance overlaps nesting season; California law protects active nests (Fish and Game Code § 3503). Doing tree work in late fall and winter avoids most conflicts — see When to trim trees in Sacramento.
• Your neighbor's land. The statutes don't require you to enter or alter someone else's property without consent. For trees on the line, see Neighbor's tree and property line rules.

Hiring help

Large-tree pruning and removal are CSLB-licensed specialties (C-49 Tree and Palm Contractor). Before you sign, run through How to hire a tree service, and compare published price ranges on Tree trimming cost and Tree removal cost (estimates, not quotes). Ask that cut material be chipped or hauled away rather than left piled near the house.

Related guides

• When to trim trees in Sacramento
• Dead or hazardous trees
• Pine tree removal
• Trees near power lines
• Sacramento tree permits (city & county)
• Tree trimming cost
• How to hire a tree service

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We don't do tree work ourselves. Tell us about your tree and we'll connect you with independent local tree professionals so you can compare written quotes. Always verify the contractor's license and insurance at cslb.ca.gov.

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Tree removal costs by area: Sacramento · Elk Grove · Roseville · Folsom · Citrus Heights · Rancho Cordova · Carmichael · West Sacramento · Davis · Natomas · Antelope · Fair Oaks
More guides: Stump grinding cost · Emergency/storm removal · Tree trimming cost · Palm tree removal · Tree permits · Tree fell on house: insurance · Neighbor & boundary trees · Oak tree removal · Dead/hazardous trees · Trees near power lines · Roots, sewers & foundations · Elk Grove permits · Roseville permits · Folsom permits · Citrus Heights permits · Rancho Cordova permits · Sacramento County permits · Davis permits · West Sacramento permits · Hiring a tree service · After a storm · Pine tree removal · When to trim · Defensible space · Landlords, tenants & HOAs