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Landscaping Rules in Mendocino County, CA (2026)

2 rules for unincorporated Mendocino County, California.

Verified from official government sources

Note: These county rules apply to unincorporated areas of Mendocino County. If you live within an incorporated city, that city's own rules apply: see the city list below.

Weed Ordinances

Unincorporated Mendocino County Code Ch. 8.77 declares hazardous vegetation, weeds, and combustible material that create a fire hazard a public nuisance. The County Building Official can order abatement, including defensible space around structures, with fines up to $1,000 per violation per day.

Mendocino County Weeds, Hazardous Vegetation, and Fire-Hazard Abatement

Some Restrictions

Mendocino County Code Sec. 8.77.030 (Declaration of Nuisance)

It is a public nuisance for any person owning, leasing, occupying, or having charge of any property within the County to maintain such property in such a manner that contributes to the existence of any Combustible Material or Rubbish, Hazardous Vegetation, or Weeds, which constitutes a fire hazard, as determined by the County Building Official, or authorized designee.
Full ordinance details →Official source ↗

Composting

New landscapes over 500 square feet, or rehabilitated ones over 2,500 square feet, in unincorporated Mendocino County must meet the state Model Water Efficient Landscaping Ordinance's compost and mulch standards under Section 9A.32.010: four cubic yards of compost per 1,000 square feet tilled six inches deep, plus a three-inch mulch layer on exposed soil.

Mendocino County Compost and Mulch Rules

Some Restrictions

Mendocino County Code § 9A.32.010 (Compost and Mulch Use Requirements for Landscaping)

(C)Property owners or their building or landscape designers that meet the threshold for MWELO compliance outlined in Subsection (A) above shall:(1)Comply with Sections 492.6(a)(3)(B), (C), (D), and (G) of the MWELO, which requires the submittal of a landscape design plan with a soil preparation, mulch, and amendments section to include the following:(a)For landscape installations, Compost at a ...
Full ordinance details →Official source ↗

All Mendocino County ordinances

See every category we cover for Mendocino County: parking, noise, fences, fires, animals, pools, and more.

Mendocino County Ordinance Hub →