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Lyon County, NV Building Setbacks & Zoning: Structure Height Limits (2026)

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

Key Facts

Base height limit
35 feet in residential/agricultural zones
Institutional exception
up to 45 feet with wider setbacks
Setback trade-off
+2 feet per 1 foot over height limit
Appurtenance allowance
+5 feet for chimneys, flagpoles, antennas
Enforcing agency
Community Development Building Division
Applies only in
unincorporated Lyon County, not Fernley/Yerington

Summary

In unincorporated Lyon County, Nevada, the Board of County Commissioners caps residential building height at 35 feet in the Rural Residential (RR-20 through RR-1), Agriculture and Non-Irrigated Agriculture zoning districts under the Land Use and Development Code. Community Development enforces the limit through building permit review. Public and quasi-public buildings, schools, houses of worship and hospitals may rise to 45 feet if required setbacks are increased two feet for every extra foot of height above the base limit.

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

E. Building Height: ... 1. Height Requirements Generally: No building shall be erected or altered that will exceed the height limit for the respective zoning district, unless otherwise provided in this chapter or elsewhere in this title. ... ... 3. Exceptions To Height Limits: The height limits of buildings and structures contained in this title may be modified as follows: a. In a Residential Zoning District with a height limit of less than forty five feet (45'), public and quasi-public buildings, schools, houses of worship, hospitals and other institutions permitted in the zone, may be erected to a maximum height of forty five feet (45'); provided, that all required setbacks shall be increased by two feet (2') for each additional one foot (1') of height that the building exceeds the maximum height of the zone and the appropriate fire protection district verifies that the building has complied with the adopted fire codes and sufficient access to allow for emergency vehicles to maneuver around the building.

Full Breakdown

Lyon County Code section 15.330.03(E) sets the height standard that applies to every zoning district listed in chapters 15.310 through 15.316, including the Rural Residential districts (RR-20, RR-10, RR-5, RR-2, RR-1) that cover unincorporated communities such as Dayton, Silver Springs, Stagecoach, Mound House and the Smith and Mason Valleys. The district development-standards tables printed in each chapter set the base residential limit at 35 feet, cross-referencing 15.330.03(E) for the detailed rules. Height is measured vertically from natural or finished grade, whichever is more restrictive, to the highest point of the roof or eaves.

No building may be erected or altered to exceed the district's height limit unless this chapter or another part of Title 15 says otherwise. A narrow appurtenance exception lets cupolas, flagpoles, chimneys, parapets, antennas and rooftop mechanical equipment rise up to five feet above the maximum permitted height, as long as the feature does not add floor area and does not conflict with FAA rules. Separately, subsection E.3.a allows public and quasi-public buildings, schools, houses of worship, hospitals and similar institutional uses permitted in a residential district with a height limit under 45 feet to be built as tall as 45 feet, but only if every required setback is widened by two feet for each additional foot of height and the local fire protection district confirms adopted fire-code compliance and emergency-vehicle access around the building.

Community Development's Building Division reviews height compliance at permit issuance; Fernley and Yerington, both incorporated cities, apply their own separate height standards and are not governed by this county code section.

Violations & Fines

Building above the district height limit without an approved exception violates the Lyon County Code. Under the county-wide general penalty at section 1.04.01, a violation not otherwise classified is a misdemeanor under Nevada Revised Statutes, or a civil infraction penalty of up to five hundred dollars ($500.00) per offense, with each day of continued violation a separate offense. Community Development's Building Division and Code Enforcement may issue a stop-work order, withhold or revoke the permit, and require the structure be brought into conformance before final inspection.

Frequently Asked Questions

What is the maximum residential building height in unincorporated Lyon County, Nevada?
The Board of County Commissioners sets a 35-foot base limit in the county's residential zoning districts, including RR-20 through RR-1, under Lyon County Code section 15.330.03(E), which the 35-foot figure printed in each district's building-form standards table in chapters 15.310 through 15.316 cross-references.
Can a house exceed 35 feet in a Lyon County residential zone?
Only through the exceptions in section 15.330.03(E): public and quasi-public buildings, schools, houses of worship and hospitals permitted in the district may reach 45 feet if every required setback is increased two feet for each additional foot of height, and the local fire protection district confirms fire-code and emergency-access compliance. Ordinary appurtenances such as chimneys, flagpoles and antennas may exceed the limit by up to five feet.
How is building height measured under Lyon County's code?
Height is measured vertically from the natural or finished grade, whichever is more restrictive, up to the highest point of the roof, structure or eaves directly above that point, per Lyon County Code section 15.330.03(E)(4). The measurement is taken at the specific point on the ground beneath the highest feature, not from an averaged grade.
Does this height limit apply in Fernley or Yerington?
No. Fernley and Yerington are incorporated cities with their own separate municipal codes and building height rules; the Lyon County Code's Title 15 zoning height standards apply only in unincorporated Lyon County, including Dayton, Silver Springs, Stagecoach, Mound House and the Smith and Mason Valleys.

Sources & Official References

Other rules in Lyon County

All Lyon County rules

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