Napa County does not impose a numeric inch-based grass height limit on ornamental lawns. Instead, Chapter 8.36 (Fire Protection — Fire Hazard Abatement) regulates combustible dry grass and weeds, requiring property owners to clear or reduce flammable vegetation within 100 feet of structures and along roadsides as part of defensible space.
Unincorporated Napa County does not have a generic 'tall grass' nuisance ordinance with a specific height in inches. Instead, the County uses fire-hazard abatement under Chapter 8.36 of the Napa County Code (most recently amended by Ordinance 1467) to require property owners to maintain defensible space and clear combustible vegetation. 'Combustible vegetation' is defined to include dry grass, brush, weeds, dead or dying trees, and other readily ignitable materials. Defensible space is the area within a 100-foot radius of a structure (or to the property line, whichever is less) where dry grass and weeds must be cut, removed, or reduced per the Napa County Defensible Space Guidelines. Roadside vegetation along driveways and access roads must also be cleared. Where a structure is within 100 feet of a property line, an adjacent property owner is responsible for clearing the portion of the buffer that falls on their own parcel. Annual inspections begin in spring and continue through wildfire season.
Failure to clear combustible vegetation after notice is enforced by the Napa County Fire Marshal under §8.36.100. The County may declare a public nuisance and have the materials removed by contractors; the cost is billed to the parcel owner and may become a lien on the property. Administrative fines also apply.
Napa County, CA
Unincorporated Napa County does not have a stand-alone leaf-blower ban. Powered garden tools (leaf blowers, mowers, chainsaws) are regulated under the genera...
Napa County, CA
Napa County Code §8.16.080 prohibits operating any loudspeaker or amplified-sound device when the sound creates a noise disturbance or violates the exterior ...
Napa County, CA
Napa County Code §8.16.080 prohibits keeping or maintaining any animal that causes annoyance or discomfort to two or more reasonable persons of normal sensit...
Napa County, CA
Napa County Code §8.16.080 prohibits the operation of construction or demolition tools or equipment between 7:00 p.m. and 7:00 a.m. when the sound creates a ...
Napa County, CA
Unincorporated Napa County regulates noise under County Code Chapter 8.16 (Noise Control Regulations). Sections 8.16.060 and 8.16.070 set interior and exteri...
Napa County, CA
Commercial vehicle parking in unincorporated Napa County is regulated through Napa County Code Title 10 (Vehicles and Traffic), Title 18 (Zoning), and Califo...
See how Napa County's grass height limits rules stack up against other locations.
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