Castle Rock, CO Fire Regulations: Brush Clearance (2026)
Key Facts
- Ignition zone
- 100 feet around the home
- Immediate zone
- Clear shrubs/trees 0-5 feet
- Flammables
- No closer than 30 feet
- Grass height
- 4 inches
- Within 5 feet
- Use noncombustible rock
Summary
Castle Rock urges creating defensible space by removing shrubs and trees within 0-5 feet of the home, keeping flammable materials at least 30 feet away, and cutting lawns and native grasses to 4 inches. Use noncombustible rock within 5 feet of the house.
Remove shrubs and trees within 0 to 5 feet of the home or structures. Keep lawns and native grasses to a height of 4 inches.
Full Breakdown
Town wildfire guidance defines home ignition zones extending 100 feet beyond your home. In the immediate zone, 'remove shrubs and trees within 0 to 5 feet of the home or structures' and use noncombustible materials like rock within 5 feet. Flammable materials 'should be no closer than 30 feet from your home,' and residents should 'keep lawns and native grasses to a height of 4 inches' and keep roofs and gutters free of dead leaves and pine needles. Overgrown weeds and grass are separately enforceable as a nuisance under the Town's property-maintenance code.
Violations & Fines
Overgrown vegetation may be abated as a nuisance; the Town can order cleanup and assess costs. Wildfire guidance is advisory but tied to code compliance.
Frequently Asked Questions
How far should I clear brush from my house?
How short should I keep grass for fire safety?
Sources & Official References
Other rules in Castle Rock
Compare Castle Rock to another location·View the Colorado fire regulations overview
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