Property Maintenance in Boulder County, CO (2026)
2 county-level rules, plus city-specific rules for 2 cities in Boulder County, Colorado.
Verified from official government sources
Property Blight
Article 14 of the Boulder County Land Use Code bans rubbish, junk, garbage and inoperable vehicles on unincorporated land when they cause a public hazard or nuisance. The county can order removal and, on failure, abate the property at the owner's cost.
Rubbish, Junk & Blight Rules in Unincorporated Boulder County
Some RestrictionsBoulder County Land Use Code 14-400(C)
Rubbish: Garbage, trash, and junk including, but not limited to, unwanted or discarded household items; waste from building construction, remodeling, and repair; ... motor vehicle parts or tires, or abandoned, unlicensed, or inoperable motor vehicles ... which causes or is likely to cause a public hazard or nuisance.
Vacant Lot Maintenance
On residential lots of 2.5 acres or less in unincorporated Boulder County, weeds and brush over nine inches that create a nuisance must be removed under Land Use Code Article 14. Dilapidated, uninhabited structures are separately regulated as 'unsafe structures.'
Vacant Lot & Weed Rules in Unincorporated Boulder County
Some RestrictionsBoulder County Land Use Code 14-400(E)
Unsafe Structure: A structure or building which ... is a dilapidated building which is unused by the owner or uninhabited because of deterioration or decay, and constitutes a fire hazard or subjects adjoining properties to a danger of damage ... or is a place frequented by trespassers and transients seeking a temporary hideout.
Property Maintenance by City in Boulder County
2 cities in Boulder County have their own property maintenance rules. Each link goes to that city's dedicated page with code citations.
All Boulder County ordinances
See every category we cover for Boulder County: parking, noise, fences, fires, animals, pools, and more.
Boulder County Ordinance Hub →