Monterey County, CA Property Maintenance: Vacant Lot Maintenance (2026)
Key Facts
- Governing section
- MCC § 10.46.040
- Administered by
- County Agricultural Commissioner
- Payment deadline
- 30 days from billing
- If unpaid
- Lien placed on the property
- Weed classes
- Group 1, 2, and 3 noxious species
Summary
Monterey County's Agricultural Commissioner can move onto private property, including vacant and unimproved land, to eradicate officially classified noxious weeds under Monterey County Code § 10.46.040 when an owner neglects to control them. The County then bills the owner for the full cost of eradication, due within 30 days, or places a lien on the property if unpaid.
Eradication of weeds in Group 1 which occur in small outlying infestations will be undertaken in accordance with one of the following programs:1.If the infestation is of such size that the cost to the County would be less than other abatement proceedings, then the entire cost of eradication will be borne by the County.2.If the property owner neglects or abandons his or her Group 1 noxious weeds, the Agricultural Commissioner will cause eradication of those noxious weeds. The property owner will be billed the entire amount of the costs of eradication. The entire amount is due and payable within thirty (30) days. If the entire amount is not paid within the specified time frame, a lien will be placed on the property for that amount owing.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 56).
Full Breakdown
020. Group 1 covers species the County intends to eradicate outright, such as Scotch and Taurian thistle and Dalmatian toadflax, plus any species the state rates Class "A" noxious. Group 2 covers species already established in parts of the county, such as Canada thistle, Russian knapweed, yellow star thistle, and puncturevine, which the County works to contain rather than fully eradicate. Group 3 covers common weeds of economic concern to farmers where control programs are less centralized. 030). For Group 1 infestations, the County bears the eradication cost itself if that is cheaper than other abatement proceedings; otherwise, if the owner neglects or abandons the weeds, the Commissioner eradicates them and bills the owner the full cost within 30 days, backed by a lien if unpaid. Group 3 follows the same billing-and-lien mechanism when an owner ignores the Commissioner's control recommendations. 050).
Violations & Fines
Chapter 10.46 does not impose a criminal fine for failing to control regulated weeds; instead it recovers the County's own abatement cost directly from the property owner. The full cost of eradication is due and payable within 30 days of billing, and if it is not paid within that window, the County places a lien against the property for the amount owed, applicable to both Group 1 and Group 3 noncompliance under § 10.46.040.
Frequently Asked Questions
Can the county make me clear weeds on my vacant lot?
What happens if I don't pay the eradication bill?
What weeds are actually regulated?
Will I be criminally fined for weeds on my property?
Sources & Official References
Other rules in Monterey County
California rules heatmap·Compare Monterey County to another location·View the California property maintenance overview
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