Centennial, CO Landscaping Rules: Weed Ordinances (2026)
Key Facts
- Max height
- 8 inches
- Notice period
- 7 days to comply
- City inspection fee
- 5% of cost
- Unpaid collection penalty
- 10% via County Treasurer
- Exempt land
- AG-zoned & 200+ acre lots
Summary
Centennial caps weeds and grass at eight inches; violators get a written notice and seven days to cut before the City mows and bills the property owner.
Weeds means any plant or vegetation which is not intentionally cultivated or is unsightly and economically useless, including grass/brush that is more than eight (8) inches in height as measured from ground level. ... It is unlawful for any person to permit the growth of weeds upon any lot or tract of land owned or occupied by any such person...to a height of not more than those limitations permissible under this Article.
Full Breakdown
Centennial Municipal Code Section 7-6-10 defines weeds as any uncultivated, unsightly plant growth, including grass or brush over eight inches measured from ground level. Section 7-6-30 makes it unlawful to let weeds grow past that height on any owned or occupied lot, plus abutting alleys and right-of-way strips. Agricultural-zoned lots, parcels over two hundred acres, and NC-2A or OSR-zoned land are exempt. After a written notice, the owner has seven days to cut; if not done, the City cuts the weeds and assesses the cost plus a five percent inspection fee against the property.
Violations & Fines
Failing to cut weeds or grass below eight inches within seven days of a written notice lets the City mow the lot and bill the owner, plus a five percent inspection fee and a lien if unpaid.
Frequently Asked Questions
How tall can my grass get in Centennial before it's a violation?
What happens if I ignore the weed notice?
Sources & Official References
Other rules in Centennial
How Centennial compares: Cities with the Strictest Weed and Property Maintenance Rules·Compare Centennial to another location·View the Colorado landscaping rules overview
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Weed Ordinances in Nearby Cities
How other cities in Arapahoe County handle weed ordinances.