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Mendocino County, CA Property Maintenance: Vacant Lot Maintenance (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

Vegetation/Rubbish Chapter
Mendocino County Code Ch. 8.77 (Ord. 4485, 2021)
Dumping/Nuisance Chapter
Mendocino County Code Ch. 8.75
Max Fine
$1,000 per violation; each day a separate offense
Attractive Nuisance
Abandoned wells, shafts, septic tanks, excavations (Sec. 8.75.040(H))
Determining Official
County Building Official or authorized designee

Summary

Owners of vacant or improved parcels in unincorporated Mendocino County must keep land free of hazardous vegetation, combustible material, and rubbish that creates a fire hazard (County Code Ch. 8.77), and free of illegally dumped solid waste, which is a public nuisance under Ch. 8.75.

These county ordinances apply to unincorporated areas of Mendocino County. Incorporated cities within the county may have their own rules that take precedence over county-level regulations.

Attractive nuisance dangerous to children whether in a building, on the premises of a building, or on an unoccupied lot in the form of abandoned wells, shafts, septic tanks, or other types of abandoned excavations.

View official code

Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 75).

Full Breakdown

Two County Code chapters apply to vacant and unimproved lots in unincorporated Mendocino County. 77 (Hazardous Vegetation, Combustible Material, Rubbish, and Weeds), adopted by Ordinance 4485 in 2021, makes it a public nuisance to maintain any property so that it contributes to the existence of combustible material, rubbish, hazardous vegetation, or weeds that constitute a fire hazard, as determined by the County Building Official. 'Rubbish' is defined broadly to include litter, crates, cartons, tires, construction waste, discarded consumer goods, and similar materials that by reason of location, character, and accumulated size constitute a fire hazard.

75 separately declares illegally dumped solid waste a nuisance, including 'the unlawful disposal or burying of solid waste' and depositing waste on premises without the owner's permission. 040(H). There is no county-wide schedule of grass heights for rural land; rangeland, pasture, forestland, and active agricultural crops are excluded from the hazardous-vegetation definition except where they affect defensible space around structures and roads.

Violations & Fines

Fire-hazard vegetation or rubbish on a lot can be abated under Chapter 8.77, which is enforced through Chapter 8.75 abatement and Chapter 1.08 administrative penalties. Section 8.77.050 sets a fine not to exceed $1,000 per violation, with each day a separate offense. Illegal dumping can be summarily abated and costs charged to the responsible party or owner.

Frequently Asked Questions

Does Mendocino County set a maximum grass or weed height for vacant rural lots?
No fixed county-wide height is stated in the code. Chapter 8.77 instead targets vegetation, weeds, and rubbish that create a fire hazard, and excludes rangeland, pasture, forestland, and active crops except where they affect defensible space around structures and roads.
What if someone dumps trash on my vacant lot?
Illegally deposited solid waste is a nuisance under Chapter 8.75 and can be summarily abated. If the dumper is identified from evidence in the trash, the County may charge cleanup costs to that responsible party, though the owner remains liable until paid.

Sources & Official References

Other rules in Mendocino County

All Mendocino County rules

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