9 county-level rules, plus city-specific rules for 1 city in Washoe County, Nevada.
Verified from official government sources
Unincorporated Washoe County has no ordinance setting a maximum lawn or weed height. Code Enforcement can only act on 'excessive foliage growth' on foreclosed homes. Inside Reno or Sparks, the 8-inch city rule applies instead.
Washoe County Code Enforcement - Overgrown Vegetation and Weed Complaints
Washoe County (i.e. the unincorporated area) has not adopted an ordinance specific to the regulation of "weeds," such as limitations on height, land area coverage, location, or a definition of what is considered a weed.
Unincorporated Washoe County has no general tree-trimming ordinance, but in Truckee Meadows Fire District wildland-urban interface zones the WUI Code requires pruning tree crowns to keep clearance from structures and the ground.
WUI Code Fig. 603.2.2 / 604.4.1 (TMFPD Defensible Space)
Tree crowns extending to within 10 feet (3048 mm) of any structure shall be pruned to maintain a minimum horizontal clearance of 10 feet (3048 mm). Tree crowns within the Defensible Space shall be pruned to remove limbs located less than 6 feet (1829 mm) above the ground surface adjacent to the trees.
Unincorporated Washoe County does not require a permit to remove a tree on your own private property. Removal is instead encouraged where trees create wildfire fuel; defensible-space rules govern spacing and hazard reduction.
Unincorporated Washoe County has no local weed ordinance. Noxious weeds are governed statewide by NRS Chapter 555: landowners must control designated noxious weeds. Reports go to the Nevada Department of Agriculture or UNR Cooperative Extension.
NRS 555.005
"Noxious weed" means any species of plant which is, or is likely to be, a public nuisance, detrimental or destructive and difficult to control.
There is no county watering schedule. In the Truckee Meadows, Truckee Meadows Water Authority (TMWA) assigns sprinkler days by address: odd addresses water Wed/Fri/Sun, even addresses Tue/Thu/Sat, never Mondays, and not during midday heat in summer.
Rainwater harvesting is legal statewide. Nevada NRS 533.027 allows de minimis collection of precipitation from the rooftop of a single-family dwelling for nonpotable domestic use without a water-right permit. Washoe County adds no separate restriction.
NRS 533.027
de minimus collection of precipitation from the rooftop of a single-family dwelling for nonpotable domestic use
Washoe County does not require native plants, but its arid high-desert setting and TMWA's conservation program strongly encourage drought-tolerant, water-wise landscaping. Fire-district defensible-space rules also favor spaced, low-fuel plantings near homes.
Unincorporated Washoe County has no ordinance prohibiting or specially regulating artificial turf on residential property. It is a common water-saving choice in this arid climate. HOA covenants, not the county, are the usual limiting factor.
Home composting is allowed in unincorporated Washoe County. There is no dedicated composting permit, but a pile that creates odor, attracts vermin, or becomes a public nuisance can be enforced under the county's nuisance abatement code.
1 cities in Washoe County have their own landscaping rules rules. Each link goes to that city's dedicated page with code citations.
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