---
title: What Is Defensible Space? Zones 0, 1 and 2 in Nevada
url: https://battleborntreeservice.com/guides/what-is-defensible-space/
business: Battle Born Tree Service
address: 6301 US Highway 50 East, Carson City, NV 89701
phone: 775.232.8243
hours: Office Monday-Friday 8:30 am-5:00 pm; phones answered seven days a week; 24-hour emergency service
credentials: ISA Certified Arborist WE-11728A on staff; Nevada Business License # 20131580674; fully insured
type: Tree service (removal, crane work, pruning, stump grinding, defensible space, snow removal, firewood)
---

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- What is defensible space? Zones 0, 1 and 2

# What is defensible space? Zones 0, 1 and 2

Defensible space is the area around a building where you manage plants and combustible items so a wildfire has less to burn and embers have fewer places to land. University of Nevada, Reno Extension divides it into three zones: Zone 0 (0 to 5 feet), Zone 1 (5 to 30 feet) and Zone 2 (30 to 100 feet).

Key takeaways

- Zone 0 (0 to 5 feet) is the ember-resistant zone: no woodpiles, no combustible mulch, no dead leaves or needles.
- Zone 1 (5 to 30 feet) is lean, clean and green: minimum flammable vegetation, discontinuous islands of plants, irrigated and healthy.
- Zone 2 (30 to 100 feet) is reduced fuel: remove dead vegetation, add separation between shrubs, shrub groups and trees, and remove ladder fuels.
- Nevada law does not set a single 100-foot rule. The State Forester Firewarden can direct an owner to remove a fire hazard under NRS 472.500.

The zones are guidance, not a single statewide distance rule, and local fire districts set their own requirements. Use this guide to understand what each ring is for, then ask your fire agency what it expects at your address.

## The three zones at a glance

| Zone | Distance from the building | What the guide asks for |
|---|---|---|
| Zone 0, ember-resistant | 0 to 5 feet | Clear woodpiles, combustible mulch, dead leaves and needles. Use gravel, rock or pavers. Remove junipers, sage and other high-hazard plants. |
| Zone 1, lean, clean and green | 5 to 30 feet | Keep flammable vegetation to a minimum, leave discontinuous islands of plants, keep plants healthy and irrigated, and avoid mass plantings of shrubs and trees. |
| Zone 2, reduced fuel | 30 to 100 feet | Remove dead or dried vegetation, separate shrubs, shrub groups and trees, and remove ladder fuels. |

## Why do the first five feet around a house matter most?

Embers can travel ahead of a wildfire and land on a roof, in a gutter or against the wall. If something that burns sits within 5 feet of the house, an ember can become a fire at the siding. That is why Zone 0 is about what touches or sits next to the building: wood mulch, a woodpile, dry needles, a juniper under a window.

Hardscape is the simple answer here. Gravel, pavers and rock do not burn. If you keep plants in Zone 0, the guide says to choose low, nonwoody types with high moisture content. Walk the edge of your house and look at every item within arm's reach of the wall, including the doormat, the patio furniture and the bark in the planter.

## Zone 1: lean, clean and green

In Zone 1 the goal is to break up the fuel so fire cannot run in a continuous line toward the house. Think islands of plants with open ground between them, not a hedge of shrubs and trees from the fence to the foundation. Mulch can be used, but not in a continuous, widespread layer, and it should be surrounded by noncombustible material such as decomposed granite or irrigated lawn.

In pine country the guide also says to remove pine needles from Zone 1 once in the spring, since they build up through fall and winter. Keep the plants you keep healthy and irrigated when you can, because a green, watered plant holds more moisture than a stressed, dry one.

## Zone 2: reduced fuel and ladder fuels

Zone 2 is where most of the tree and brush work happens. Remove dead or dried vegetation, thin so shrubs and trees are separated, and remove ladder fuels, the low-growing vegetation that carries fire from the ground into tree crowns. See our guide to [ladder fuels and limbing up](https://battleborntreeservice.com/guides/ladder-fuels-limbing-up/). In pine-dominated areas the guide says not to let needles on the ground exceed 3 inches in depth.

The guide also notes that stripping out all vegetation is not good for the land and can bring in invasive weeds such as cheatgrass. The aim is reduced and separated fuel, not bare dirt.

## What does Nevada law say about defensible space?

NRS 472.500 says owners of land within the State Forester Firewarden's jurisdiction must remove a fire hazard when directed to. The statute does not contain a distance figure, so you will not find a statewide "100 feet" rule in it. Local fire districts adopt their own wildland-urban interface rules, and the Tahoe Basin has its own agencies. Ask the fire agency for your address what applies, and see [evaluations and chipping programs by fire district](https://battleborntreeservice.com/guides/free-defensible-space-evaluations-chipping/).

## Where Battle Born Tree Service fits

Our crew does defensible space and fire mitigation, lot clearing, brush mowing and masticating, and a certified arborist assesses every job before work begins. We can walk a property and describe the work by zone, and we can do the cutting, chipping and haul-off. The fire agency, not a contractor, decides what your district requires. Call [775.232.8243](tel:775.232.8243) for a free estimate.

### Sources

- [University of Nevada, Reno Extension: Living With Fire (SP-23-07)](https://extension.unr.edu/publication.aspx?PubID=5522) (read October 17, 2026)
- [Nevada Legislature: NRS Chapter 472, Forest and Watershed Lands; Fire Protection (NRS 472.500 and 472.520)](https://www.leg.state.nv.us/nrs/NRS-472.html) (read October 17, 2026)

### Talk to the office

[775.232.8243](tel:775.232.8243)

| Monday to Friday | 8:30 am - 5:00 pm |
|---|---|
| Saturday and Sunday | Office closed, phones answered |

Phones answered seven days a week. 24-hour emergency service.

[Free estimate](#quote)

### Keep reading

- [Defensible space checklist for Carson City's west side](https://battleborntreeservice.com/guides/defensible-space-checklist-carson-city/)
- [Ladder fuels and limbing up](https://battleborntreeservice.com/guides/ladder-fuels-limbing-up/)
- [Junipers and other high-hazard plants next to the house](https://battleborntreeservice.com/guides/junipers-high-hazard-plants/)
- [Free defensible space evaluations and chipping programs by fire district](https://battleborntreeservice.com/guides/free-defensible-space-evaluations-chipping/)
- [Defensible space and fire mitigation](https://battleborntreeservice.com/tree-services/defensible-space-fire-mitigation/)
- [Defensible space and fire questions](https://battleborntreeservice.com/faq/defensible-space-and-fire/)

### Terms on this page

[Wildland-urban interface (WUI)](https://battleborntreeservice.com/glossary/wildland-urban-interface/) [Arborist](https://battleborntreeservice.com/glossary/arborist/)

[The full glossary](https://battleborntreeservice.com/glossary/)

- Zone 0: 0 to 5 feet. Ember-resistant zone. Nothing that burns against the house: clear dead leaves and needles, move firewood away, cut back branches that touch walls or hang over the roof.
- Zone 1: 5 to 30 feet. Lean, clean and green. Remove dead plants and ladder fuels, limb up trees, and break up continuous shrubs such as junipers.
- Zone 2: 30 to 100 feet. Reduced fuel. Thin crowded trees and brush so fire stays on the ground and slows down. This is where the brush mower and masticator work.

Zones from the University of Nevada, Reno Extension Living With Fire guide (2023). Your fire protection district may set its own rules.

## More from the blog

Pruning and care October 17, 2026 5 min read

### What should you do with your trees in October in Carson City and Reno?

In October, finish watering while the ground is open, look over your trees for dead or hanging limbs, and clear leaves and needles away from the house. Save most live-wood pruning for the dormant seas

Pruning and care October 17, 2026 6 min read

### Young trees in new subdivisions: the first ten years

A young tree in a new subdivision needs very little pruning in its first two or three years, then steady structural pruning to build one strong central trunk and well-spaced branches. The ISA says tre

Removal and equipment October 17, 2026 6 min read

### Where tree debris and green waste go in Reno and Carson City

Green waste has a few legitimate homes in our area: the landfill or transfer station if the load is only wood and green waste, a fire district drop-off day or curbside chipping program if you qualify,

[All posts](https://battleborntreeservice.com/blog/)

## Questions people ask

Still have a question? Call [775.232.8243](tel:775.232.8243). Phones are answered seven days a week.

### Is defensible space required by law in Nevada?

It depends on where the property is. NRS 472.500 lets the State Forester Firewarden direct owners within its jurisdiction to remove a fire hazard, and local fire districts adopt their own rules. The statute has no distance figure, so check with your fire agency.

### How far from the house does defensible space go?

University of Nevada, Reno Extension's guide describes three zones out to 100 feet: 0 to 5 feet, 5 to 30 feet and 30 to 100 feet. Your fire district may ask for something different on your lot.

### Should I remove all the plants near my house?

No. Zone 0 should be clear of anything that burns, but in Zone 1 and Zone 2 the goal is reduced and separated fuel. The guide warns that removing all vegetation can increase invasive weeds such as cheatgrass.

### When should I do the work?

Pine needles build up through fall and winter, so the guide says to clear Zone 1 needles in the spring. Fire risk is not limited to summer, because plants are dormant and dry in fall and winter.