Bolthole Index

Lyon County, Nevada

Building permits, zoning and land rules in Lyon County, Nevada

35Index Score / 100
#11 of 17 in Nevada

Unincorporated Lyon County, Nevada requires building permits for most residential construction, repairs and remodeling; the Planning Division handles zoning under Title 15123. The Lyon County Building Department handles residential septic approval for homes without community sewer45. Motor homes, travel trailers and RV-classified tiny homes cannot be used as residences on unincorporated land67.

At a glance

Building permit
Required for most new construction, repairs and remodeling1
Zoning
Yes, under Title 15 in unincorporated Lyon County2
Septic permit
Building Department approval required for a dwelling without community sewer45
Owner-builder
Available for a home built for the owner's occupancy, with conditions8
RV residence
Not permitted in unincorporated Lyon County6
Tiny home
Permitted as an accessory dwelling in districts that allow them, if built to code on an engineered foundation; an RV-classified tiny home cannot be a residence97
Manufactured home
Allowed with county permits and zoning, age, size and placement conditions10
Minimum lot size
2 net acres in RR-2 and 5 gross acres in RR-5; other districts vary1112

Who to call

Building permits

Lyon County Community Development Department, Building Division

Building permits and inspections for Lyon County, including unincorporated land

(775) 463-6591

building@lyon-county.org

Planning & zoning

Lyon County Community Development Department, Planning Division

Zoning district lookups, zoning permits and land-use/development-code applications for unincorporated Lyon County

(775) 463-6592

planning@lyon-county.org

27 S. Main Street, Yerington, NV 89447

Septic permits

Nevada Division of Environmental Protection, Bureau of Water Pollution Control (OSDS Program)

Large-capacity and commercial onsite sewage disposal system (OSDS) permits statewide; this program does not cover a standard single-family septic system

(775) 687-9418

901 S. Stewart St., Ste. 4001, Carson City, NV 89701

Roads & driveways

Lyon County Roads Division, Road Yard – Southern Lyon County

County road maintenance and encroachment permits for work in a county road right-of-way, including new driveway access

(775) 463-6551

18 Highway 95A North, Yerington, NV 89447

Contact details are copied from each office’s official page and were checked against it on October 10, 2026.

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Do you need a building permit in Lyon County, Nevada?

Unincorporated Lyon County requires permits for most new construction, repairs and remodeling on residential lots13. Fences may be exempt subject to height limits, and a detached accessory structure under 200 square feet may be exempt only when it has no electrical or plumbing work13. Plan submittals must comply with the building codes effective in 2026, including the 2024 ICC code family and the 2023 electrical code14. An owner may apply as an owner-builder for a home intended for personal occupancy, but must submit the affidavit, directly supervise construction and use licensed subcontractors8.

Who is the Lyon County building department, and how do you reach it?

The Lyon County Community Development Department's Building Division handles building permits and inspections; call (775) 463-6591 or email building@lyon-county.org15. The public counter closes at 4:00 p.m. on weekdays15. Inspection requests must reach the Yerington office by 4:00 p.m. on the preceding working day, and Monday inspections must be requested by Friday16. Keep the approved plans, permit card and earlier inspection reports at the job site, because incomplete work can trigger an $80 recall fee16. For zoning and development review on unincorporated land, contact the Planning Division at (775) 463-6592 or planning@lyon-county.org1718.

Does Lyon County have zoning?

Unincorporated Lyon County has zoning under Title 15, with permitted uses and development standards that vary by district; municipal rules may differ21917. Ask the Planning Division to identify the parcel’s district and allowed uses before choosing a house type or siting improvements18. In RR-1, setbacks are 30 feet in front and on a side street, 20 feet at the rear and 10 feet at the side; maximum building height is 35 feet2021. RR-2 requires 2 net acres and 75 feet of street frontage; RR-5 requires 5 gross acres and 150 feet of frontage, with a 30-foot frontage exception on cul-de-sac bulbs in both districts1112. Cottage-housing minimum lot areas apply only to the listed suburban and mixed-use districts and depend on water and sewer availability; they are not rural residential lot standards22. Land division is also regulated under Title 15, and tentative subdivisions require engineered drainage and soils studies2324. We could not confirm general lot-coverage limits; ask Planning for the parcel’s applicable standards18.

How do septic permits work in Lyon County?

The Lyon County Building Department handles residential individual sewage disposal system (ISDS) approval; call (775) 463-6591 or email building@lyon-county.org for application instructions415. Every Lyon County dwelling without community sewer must have its own ISDS, with approval before construction, alteration or extension525. A residential building application needs water and wastewater documentation, such as a utility will-serve letter, well-driller contract or septic application with perc-test data; water and sewer facilities must be on the same parcel as the home26. Plan space for a reserve leach field as well as the initial system5. Only about 9.3% of Lyon County soils lack severe limits for a conventional drain field, making site evaluation an early feasibility step27. The ISDS must be inspected and applicable as-built plans and well logs submitted before occupancy approval28. NDEP handles large-capacity and commercial systems rather than single-family residential septic approvals29.

Can you live in an RV or tiny home on your land in Lyon County?

Motor homes, travel trailers and recreational vehicles are not permitted as residences in unincorporated Lyon County6. A tiny home classified as a recreational vehicle also cannot be used as a residence7. A tiny house of 400 square feet or less (not counting lofts) with complete independent living facilities is a different category: it is permitted in zoning districts that allow accessory dwelling units, if it is built to residential-code (IRC) standards on a foundation design stamped by a Nevada-licensed professional engineer9. Manufactured homes need permits before delivery, and county rules impose age, certification, size and placement conditions10. A manufactured home also needs a Nevada-engineered poured perimeter foundation with a crawl space or an approved equivalent30. Accessory dwellings are limited to one per parcel and to 1,100 square feet or half the primary home’s living area, whichever is less; RR-2 and RR-5 impose additional acreage and service conditions311112. We could not confirm a general temporary-camping rule; ask Planning before planning a stay on the parcel18.

How do you build a home in Lyon County, step by step?

  1. Ask Planning for the parcel's zoning district, allowed residential use and development standards1718.
  2. Document water and wastewater service before filing; Lyon County will not accept the application until both are addressed26.
  3. Assemble complete plans and supporting approvals on county forms; incomplete applications are rejected3233.
  4. Obtain septic approval if there is no community sewer, and obtain floodplain approval first if the parcel lies in a FEMA Special Flood Hazard Area534.
  5. Submit complete paper applications in person or upload the required documents for an online building application32.
  6. Ask Lyon County Roads or NDOT whether the driveway needs an encroachment permit35.
  7. Complete inspections; for a residential permit, the signed final inspection record serves as the certificate of occupancy1636.

What should you check before buying land in Lyon County?

Confirm the zoning district, allowed dwelling type and development standards with the Planning Division before treating rural acreage as buildable3718. Check FEMA flood mapping because construction, manufactured-home placement and fill in a Special Flood Hazard Area need approval before a building permit, with elevation certificates required during most such projects34. Access to county roads or state highways may require a road encroachment permit; ask Lyon County Roads or NDOT whether the parcel needs one35. Test wastewater feasibility early: only about 9.3% of Lyon County soils lack severe limits for a conventional drain field27. Lyon County averages about 8 inches of precipitation a year and has experienced severe drought in roughly 46.3% of recent years, so verify the proposed water supply3839. Countywide benchmarks include a 0.5% effective property-tax rate and a $1,585 median annual tax bill4041.

Watch-outs

  • Lyon County will not accept a residential building application until water and sewer service provisions are documented42.
  • An RV or travel trailer cannot be used as a residence in unincorporated Lyon County6.
  • A manufactured home needs county permits before it is brought onto the lot10.
  • A building or structure cannot be occupied until Lyon County issues the applicable certificate of occupancy; for a residential permit, the signed final inspection record serves that function36.

Sources

  1. Building Permits on Residential Lots, quoted and re-checked
  2. Title 15, Land Use and Development Code, quoted and re-checked
  3. Title 15, Land Use and Development Code, quoted and re-checked
  4. Onsite Sewage Disposal System Program, quoted and re-checked
  5. Individual Sewage Disposal System, quoted and re-checked
  6. Manufactured Homes in Lyon County, quoted and re-checked
  7. Manufactured Homes in Lyon County, quoted and re-checked
  8. Owner Builder Affidavit, quoted and re-checked
  9. 15.335.03: Uses Permitted Based on Standards, quoted and re-checked
  10. Manufactured Homes in Lyon County, quoted and re-checked
  11. 15.311.04: Rural Residential, 2 Acre Minimum (RR-2), quoted and re-checked
  12. 15.311.03: Rural Residential, 5 Acre Minimum (RR-5), quoted and re-checked
  13. Building Permits on Residential Lots, quoted and re-checked
  14. Building, quoted and re-checked
  15. Lyon County Community Development Department, Building Division (lyon-county.org)
  16. Purpose of Building Inspections, quoted and re-checked
  17. Title 15, Land Use and Development Code, quoted and re-checked
  18. Lyon County Community Development Department, Planning Division (lyon-county.org)
  19. Title 15, Land Use and Development Code, quoted and re-checked
  20. 15.311.05: Rural Residential, 1 Acre Minimum (RR-1), quoted and re-checked
  21. 15.311.05: Rural Residential, 1 Acre Minimum (RR-1), quoted and re-checked
  22. 15.344.03: Density, Number of Cottage Housing Units and Minimum Lot Area, quoted and re-checked
  23. Title 15, Land Use and Development Code, quoted and re-checked
  24. Lyon County Title 15 – Land Use and Development Code, Land Division, quoted and re-checked
  25. lyon-county.org, quoted and re-checked
  26. Building Permits on Residential Lots, quoted and re-checked
  27. Share of soils USDA rates "not limited" for a conventional septic drain field (SSURGO). A strict rating: the median county is about 6% and a tenth of counties are 0%, so a low figure means most lots need a site evaluation or an engineered system, not that septic is impossible. Cite it only with that caveat: Bolthole Index county data
  28. lyon-county.org, quoted and re-checked
  29. Nevada Division of Environmental Protection, Bureau of Water Pollution Control (OSDS Program) (ndep.nv.gov)
  30. codelibrary.amlegal.com, quoted and re-checked
  31. 15.335.03: Uses Permitted Based on Standards, quoted and re-checked
  32. Building Permits on Residential Lots, quoted and re-checked
  33. Building Permits on Residential Lots, quoted and re-checked
  34. Building Permits on Residential Lots, quoted and re-checked
  35. Building Permits on Residential Lots, quoted and re-checked
  36. lyon-county.org, quoted and re-checked
  37. Title 15, Land Use and Development Code, quoted and re-checked
  38. Annual precipitation: Bolthole Index county data
  39. Share of years in severe drought: Bolthole Index county data
  40. Effective property tax rate: Bolthole Index county data
  41. Median property tax bill: Bolthole Index county data
  42. Building Permits on Residential Lots, quoted and re-checked

Written October 10, 2026 from the rules quoted below, each taken from an official source and re-checked by an independent reviewer. This is research, not legal advice: rules change, so confirm with the office before you buy or build.

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Compared with neighboring counties

Like all 6 of its neighbors, Lyon County has countywide zoning.

RuleLyon CountyDouglas CountyStorey CountyCarson CityMineral CountyChurchill CountyPershing County
Building permitRequiredRequiredRequiredLimitedRequiredRequiredRequired
County zoningYesYesYesYesYesYesYes
Septic permitsNot publishedCounty Community DevelopmentNot publishedCarson City Health & Human ServicesCounty Building Dept.County Public WorksCNHD

County locator

Lyon County in Nevada

35
County map
Lyon County highlighted among the Nevada counties · colored by Index score

How Lyon County scores

Seclusion65100% ev.
Self-Sufficiency1398% ev.
Admin Boringness44100% ev.
Durability31100% ev.
Property Autonomy94100% ev.
Carry Cost84100% ev.

Evidence strength: 99%. This reports direct-source completeness and fallback use; it is separate from the score and is not a confidence interval. How it works →

$420kTypical home
0.5%Property tax
$3,107Land / acre
8"Annual rain
46.3% of yrsSevere drought
10.9 / yr (+9.6)Mid-century 100°F days
49.2 daysMid-century dry spell
0.92" (+8.2%)Mid-century 1-day rain
1.09×Wildfire change factor
100%Forward climate coverage
$1,013Home insurance / yr
1.4% / yrInsurance growth
0.65%Nonrenewal rate
county median (2+ published ZIPs)Insurance basis
541,700People within 2 hr
4,179Radius comparison (15 mi)
31.2People / sq mi
65.9%Federal land
59.6%Land at 15% slope or less
9.3%Soils rated "not limited" for septic (strict USDA rating)
115,531 acWorkable land screen
8.6%Wooded land
10.1 tonsBiomass / forest ac
51.5°FAvg temp

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Cities and towns in Lyon County

Inside a city or town, that city usually issues building permits and sets zoning; the county’s rules above cover unincorporated land. Septic, wells and floodplain rules usually stay with the county or state everywhere.

Not yet researched: Yerington

Answers from the rulebook for Lyon County

What the ordinances and state agencies actually say — one answer per question, each quoted from the official source and independently re-checked.

Lyon County rules

  • Building permitRequired

    New construction, repair, or remodeling of buildings or structures on residential lots in unincorporated Lyon County.

    • Exceptions include fences, subject to height limitations.
    • Detached accessory structures under 200 square feet with no electric or plumbing are excepted.
    • Incomplete applications may be rejected.
    • Water/sewer provisions must be addressed before an application is accepted.
    “Generally, all new construction, repair or remodeling of buildings or structures on residential lots will require permits from the Building Dept. Exceptions include fences (call for height limitations) and a detached accessory structure less than 200 SF with no electric or plumbing.”
    One more reviewed finding on this topic
    • Required — New construction, repair, and remodeling of buildings or structures on residential lots in unincorporated Lyon County.
      “Generally, all new construction, repair or remodeling of buildings or structures on residential lots will require permits from the Building Dept. Exceptions include fences (call for height limitations) and a detached accessory structure less than 200 SF with no electric or plumbing.”
  • Building code adoptedAdopted

    Building-code plan submittals in Lyon County.

    • The 2024 codes apply to plan submittals beginning January 1, 2026.
    • The adopted list includes 2024 ICC Building Codes, 2023 NEC, 2024 Uniform Mechanical Code, 2024 Uniform Plumbing Code, 2024 Northern Nevada ICC Amendments, and 2024 Lyon County Amendments.
    “The Lyon County Board of Commissioners on August 7, 2025 approved Bill 25-04, an ordinance amending Lyon County Code Title 15, Chapter 239, Sections 1, 2, and 5, thereby adopting the following codes, effective January 1, 2026:”
    One more reviewed finding on this topic
    • Adopted (with conditions) — Building-code enforcement by Lyon County Building Department.
      “The Lyon County Board of Commissioners on August 7, 2025 approved Bill 25-04, an ordinance amending Lyon County Code Title 15, Chapter 239, Sections 1, 2, and 5, thereby adopting the following codes, effective January 1, 2026:”
  • InspectionsRequired

    Inspections for Lyon County building permits.

    • Inspection requests must be received by 4:00 p.m. on the working day before the requested inspection.
    • Approved plans, permit card, and previous inspection reports must be at the job site.
    • A recall fee may apply for incomplete work.

    inspection request deadline: 4:00 p.m. working day before inspection (Monday inspections requested by Friday) · recall fee: 80 USD (currently stated fee)

    “All requests for inspections must be received in the Yerington office NO LATER THAN 4:00 p.m. of the working day prior to the requested inspection. (Monday inspections to be requested by Friday.)”
  • Certificate of occupancyRequired

    Use or occupancy of buildings in Lyon County.

    • For residential permits, the inspector’s report and signed inspection record card indicating final approval serve as the certificate.
    • Commercial projects require a signed certificate from the building official identifying the permitted occupancy classification.
    • A temporary certificate may be considered upon written request and a $500 application fee.
    • A change in occupancy classification requires an additional permit and subsequent certificate.

    temporary certificate application fee: 500 USD (written request and Building Official consideration required)

    “The building codes adopted by Lyon County state that no building or structure shall be used or occupied until the building official has issued a certificate of occupancy. For residential permits the inspector’s report and signed inspection record card indicating final approval serve as the certificate of occupancy.”
  • County-wide zoningPresent (with conditions)

    County zoning and land-use regulation in unincorporated Lyon County.

    • Title 15 replaces the previous county zoning provisions.
    • Incorporated municipalities and tribal areas may have separate authority.
    “Lyon County has adopted a new, updated and consolidated Land Use and Development Code. The new Code, Title 15 replaces the County’s previous zoning (Title 10), land division (Title 11), floodplain management (Title 12), and mobile home and recreational vehicle provisions (Title 13).”
    One more reviewed finding on this topic
    • Present — County Title 15 land-use and zoning regulation in unincorporated Lyon County.
      “Lyon County has adopted a new, updated and consolidated Land Use and Development Code. The new Code, Title 15 replaces the County’s previous zoning (Title 10), land division (Title 11), floodplain management (Title 12), and mobile home and recreational vehicle provisions (Title 13).”
  • Local zoningPresent (with conditions)

    Zoning and land-use regulation in Lyon County’s unincorporated areas.

    • Title 15 includes zoning regulations establishing uses and specific performance requirements based on location and use.
    • Conditional-use or special-use permit review may apply depending on location and intensity of use.
    • The county planning division describes its work as shaping the physical development of the unincorporated areas of the County.
    “Zoning Regulations including establishing uses and specific performance requirements based on location and use.”
    One more reviewed finding on this topic
    • Present (with conditions) — Zoning and development review in unincorporated Lyon County.
      “The Planning Division helps to define and shape the physical development and improvement of the unincorporated areas of the County”
  • Zoning districtsPublished

    County zoning districts and district-specific development standards in unincorporated Lyon County.

    • The county code publishes zoning districts and standards, including RR-1 standards.
    • District-specific requirements vary by zoning district.
    “15.311.05: RURAL RESIDENTIAL, 1 ACRE MINIMUM (RR-1):”
    One more reviewed finding on this topic
    • Published — Published Lyon County zoning and land-use district regulations.
      “Zoning Regulations including establishing uses and specific performance requirements based on location and use.”
  • Minimum lot sizeSpecified

    Lots in Lyon County's Rural Residential, 5 Acre Minimum (RR-5) zoning district.

    • The RR-5 district is intended for single-family detached units and permits no more than one primary residence per parcel unless otherwise specified in Title 15.
    • The lot must meet the RR-5 district's minimum frontage requirement of 150 feet.
    • The frontage requirement is 30 feet if the lot is located on a cul-de-sac bulb.
    • Accessory dwelling units are limited to no more than one unit per five gross acres and must satisfy the district's listed conditions, including individual well and septic service, 50-foot separation, and performance-based standards.
    • The code states that the current code is through Ordinance 643, passed August 21, 2025.

    minimum lot size: 5 gross acres · minimum lot street frontage width: 150 feet (30 feet if located on a cul-de-sac bulb)

    “Lot size | 5 gross acres Lot street frontage width | 150 feet (30 feet if located on a cul-de-sac bulb)”
    2 more reviewed findings on this topic
  • SetbacksDistrict specific (with conditions)

    RR-1 Rural Residential zoning district.

    • These are RR-1 standards and do not establish countywide setbacks.
    • Other zoning districts may have different dimensional requirements.

    front setback: 30 feet · side street setback: 30 feet · rear setback: 20 feet · side setback: 10 feet

    “Setback: Front 30 feet Side street 30 feet Rear 20 feet Side 10 feet”
  • Building heightDistrict specific (with conditions)

    RR-1 Rural Residential zoning district.

    • The 35-foot figure is specific to RR-1.
    • Other zoning districts may have different height standards.

    maximum building height: <= 35 feet

    “Building height (see subsection 15.330.03 E of this title) 35 feet”
  • Living in an RVProhibited

    Use of motor homes, travel trailers, or recreational vehicles as residences in unincorporated Lyon County.

    • The cited county manufactured-home guidance distinguishes manufactured homes from motor homes and travel trailers and states that those recreational vehicles are not permissible as residences.
    “Manufactured Homes cannot be defined as a motor home, travel trailer or “tiny home” (recreational vehicles) all of which are not permissible as residences in Lyon County.”
  • Tiny homesProhibited

    Tiny homes classified as recreational vehicles and used as residences in unincorporated Lyon County.

    • The cited county guidance addresses tiny homes as recreational vehicles, not code-compliant tiny houses constructed under adopted building codes.
    “Manufactured Homes cannot be defined as a motor home, travel trailer or “tiny home” (recreational vehicles) all of which are not permissible as residences in Lyon County.”
    One more reviewed finding on this topic
    • Allowed (with conditions) — Tiny houses in Lyon County zoning districts that permit accessory dwelling units.
      “Tiny Houses, as defined in this provision, are permitted in zoning districts that permit accessory dwelling units provided the units are constructed in accordance with IRC standards and are placed upon a foundation design stamped by a NV-licensed professional engineer.”
  • Manufactured homesAllowed (with conditions)

    Manufactured homes used as single-family dwellings in Lyon County.

    • The home must be permanently affixed.
    • It must have similar exterior siding and roofing to nearby single-family homes.
    • Minimum roof pitch is 3:12.
    • It must consist of more than one section and contain at least 1,200 square feet.
    • A full perimeter foundation or approved equivalent is required.
    • The home must generally be no more than six years old at application; limited minor variance waivers may apply.

    minimum living area: >= 1200 square feet (standards 4 and 5 may be waived by approved minor variance in stated circumstances) · maximum age at installation application: <= 6 years

    “Any manufactured home intended to be installed in Lyon County must be constructed or manufactured not more than six (6) years prior to the date of the application for the installation permit.”
    One more reviewed finding on this topic
    • Limited — Manufactured-home placement and occupancy in unincorporated Lyon County.
      “Lyon County requires issuance of permits to install and occupy a Manufactured Home. County building permits are required before the Manufactured Home may be brought onto the lot.”
  • Accessory dwellingsAllowed (with conditions)

    Accessory dwelling units in Lyon County agricultural, resource, residential, commercial/mixed-use, and employment districts.

    • Only one accessory dwelling unit is permitted per individual parcel.
    • The unit may not exceed 50% of the primary structure’s livable area or 1,100 square feet, whichever is less.
    • Residential-district units must be to the rear or side of the primary structure.
    • The unit must meet principal-building setbacks and height limits and provide adequate off-street parking.

    maximum accessory dwelling unit size: <= 1100 square feet gross floor area (also limited to 50% of primary structure livable area)

    “Accessory dwelling units in Agricultural, Resource, Residential, Commercial/Mixed-Use, and Employment Districts shall not exceed fifty percent (50%) of the square footage of the livable area of the primary structure or one thousand one hundred (1,100) square foot of gross floor area, whichever is less. Only one (1) accessory dwelling unit is permitted per individual parcel.”
  • Who permits septicCounty (with conditions)

    Residential individual sewage disposal systems for single-family dwellings in Lyon County that are not connected to community sewer.

    • NDEP states that residential approvals are issued by local health authorities or county building departments, not NDEP.
    • Lyon County's official ISDS guide identifies the Lyon County Building Department as the county program.
    • The Lyon County ISDS guide lists (775) 463-6531 for the Lyon County Building Department; the current Building Department webpage lists (775) 463-6591, so applicants should verify the current telephone number before filing.
    • Commercial OSDS systems are handled separately by NDEP's Bureau of Water Pollution Control.

    Lyon County ISDS guide phone: (775) 463-6531 · current Lyon County Building Department phone: (775) 463-6591

    “Lyon County Building Department (775) 463-6531”
    One more reviewed finding on this topic
    • Mixed (with conditions) — Individual sewage disposal systems in Lyon County.
      “THIS GUIDE APPLIES TO THE FOLLOWING AREAS: [...] Lyon County [...] CONTACT NEVADA DIVISION OF PUBLIC AND BEHAVIORAL HEALTH ENVIRONMENTAL HEALTH SECTION”
  • Septic permitRequired

    A single-family dwelling in Lyon County that is not connected to community sewer and proposes to construct, alter, or extend an individual sewage disposal system.

    • Every dwelling not connected to community sewer must have its own ISDS system.
    • Approval must be obtained from the administrative authority before constructing, altering, or extending the ISDS.
    • Lyon County's residential building permit materials require a septic system application with percolation test data as documentation of sewer service provisions.
    • Water and sewer facilities must be located on the same parcel as the building being served.
    • Nevada state law establishes minimum lot-size requirements for properties using septic systems, and an additional reserve leach-field area is required.
    • The Lyon County ISDS guide states that a paper application is accepted at a field office or by mail, and also identifies an online application system; the county program listing directs applicants to Lyon County's Information and Applications page.
    • The Lyon County building permit application identifies the Building Department at 27 S. Main Street, Yerington, Nevada 89447, phone (775) 463-6591, email building@lyon-county.org.

    application location: Lyon County Building Department, 27 S. Main Street, Yerington, Nevada 89447 · county building department phone: (775) 463-6591 · county building department email: building@lyon-county.org

    “Every dwelling not connected to the community sewer must have its own ISDS system. Approval must be obtained from the administrative authority to • construct, • alter or • extend an individual sewage disposal system.”
    One more reviewed finding on this topic
    • Required — Construction, alteration, or extension of an individual sewage disposal system serving a dwelling not connected to community sewer.
      “Every dwelling not connected to the community sewer must have its own ISDS system. Approval must be obtained from the administrative authority to • construct, • alter or • extend an individual sewage disposal system.”
  • Septic inspectionRequired

    Residential ISDS before issuance of an occupancy permit in Lyon County.

    • The ISDS must be inspected before an occupancy permit is issued.
    • As-built plans and well logs must also be submitted where applicable.
    • The guide includes an initial inspection in the $498 single-family ISDS permit fee.
    • Reinspection costs $100.

    reinspection fee: 100 USD

    “The individual sewage disposal system must be inspected, and all additional requirements met (as-built plans and well logs submitted, etc.) before an occupancy permit will be issued.”
  • Off-grid sanitationLimited

    Dwellings not connected to community sewer in Lyon County.

    • Every dwelling not connected to community sewer must have its own ISDS.
    • Administrative approval is required to construct, alter, or extend the ISDS.
    • State residential ISDS rules apply.
    “Every dwelling not connected to the community sewer must have its own ISDS system. Approval must be obtained from the administrative authority to construct, alter or extend an individual sewage disposal system.”
    One more reviewed finding on this topic
    • Limited — Residential sanitation where community sewer is unavailable in Lyon County.
      “Nevada Administrative Code Chapter 444 does not apply to commercial systems or one or more buildings that are not used as single-family dwelling. [...] Every dwelling not connected to the community sewer must have its own ISDS system.”
  • Mandatory utility hookupConditional

    Residential building applications and utility connections in unincorporated Lyon County.

    • Applications require water/sewer provisions to be addressed.
    • Will-serve letters, a well driller’s contract, septic application with perc-test data, or evidence of existing utilities may be required.
    • Sewer/water facilities must be on the same lot as the building served.
    • The ISDS occupancy document is required to connect to utilities.
    “No application can be accepted unless provisions for water/sewer services are addressed. Appropriate “will serve” letters from the utility district, well driller’s contract, septic application with perc test data or evidence of existing utilities are required. Sewer/water facilities must be on the same lot as the building being served.”
    One more reviewed finding on this topic
    • Conditional — Water and sewer service provisions for residential building-permit applications.
      “No application can be accepted unless provisions for water/sewer services are addressed. Appropriate “will serve” letters from the utility district, well driller’s contract, septic application with perc test data or evidence of existing utilities are required.”
  • Subdividing landRegulated (with conditions)

    Tentative subdivision maps and subdivision development in Lyon County’s unincorporated areas.

    • The tentative subdivision submission must include the required map copies and contents, a county treasurer certificate that taxes and assessments are not delinquent, phasing information if applicable, applicable Nevada Division of Environmental Protection Water Quality Division submission documentation, applicable utility will-serve or intent-to-serve letters, applicable special studies and reports, and other information necessary for review.
    • A drainage study and storm-water impact analysis must be prepared by a Nevada-licensed civil engineer in conformance with Lyon County Drainage Guidelines.
    • A soils report, geotechnical analysis, and land capability analysis must be prepared by a Nevada-licensed geological engineer.
    • A traffic study by a Nevada-licensed traffic engineer is required when the subdivision will meet or exceed 80 peak-hour vehicle trips or 500 average daily vehicle trips.

    traffic-study peak-hour threshold: >= 80 vehicle trips (Applies when the subdivision meets or exceeds the threshold.) · traffic-study average-daily threshold: >= 500 vehicle trips (Applies when the subdivision meets or exceeds the threshold.)

    “All subdivision applications shall be processed in two stages:”
    One more reviewed finding on this topic
    • Regulated (with conditions) — Land division and subdivision regulation under Lyon County Title 15.
      “Land Division policies, requirements, and procedures.”
  • Driveway accessLimited

    Driveway or property access involving county roads or state highways.

    • A Road Encroachment Permit may be required from Lyon County or NDOT.
    • The source directs applicants to contact Lyon County Roads or NDOT to determine whether a permit is needed.
    “Properties accessing county roads or state highways may need a Road Encroachment Permit either from Lyon County or NDOT. Contact Lyon County Roads department and/or NDOT to see if your pacel needs the permit.”
    One more reviewed finding on this topic
    • Limited — Access to county roads or state highways for residential development.
      “Properties accessing county roads or state highways may need a Road Encroachment Permit either from Lyon County or NDOT. Contact Lyon County Roads department and/or NDOT to see if your pacel needs the permit.”
  • Building in a floodplainRequired

    Development in FEMA-designated special flood hazard areas and Flood Zones A, AE, and AO.

    • Floodplain Development Approval is required before applying for a building permit.
    • Three elevation certificates are required during construction in the stated sequence.
    • Shaded X does not require elevation certificates.
    • In mixed flood zones, the most restrictive zone applies.
    “You will need 3 Elevation certificates throughout the contruction process in the following order: Construction Drawing Cert., Building Under Construction Cert., and finally the Finished Construction Cert (Shaded X does not require Elevation Certificates). In a mixed flood zones the most restrictive applies.”
  • Permit feesPublished

    County land-use and development permit fees published through the Title 15 framework and ISDS materials.

    • Title 15 states that its consolidated development-code components include a fee schedule.
    • The ISDS guide lists $498 for a single-family ISDS permit, $124 for resubmission or revision, $100 for reinspection, and $332 for a one-year extension.

    single-family ISDS permit fee: 498 USD (includes plan review and initial inspection) · ISDS reinspection fee: 100 USD

    “For a permit to construct an individual sewage disposal system for a single-family dwelling, including a review of the plan for the system and an initial inspection of the system (Including: primary treatment units, alternative treatment, or engineered disposal system designs) $498.00”
  • Permit processPublished

    County building and development permit application processes.

    • Residential applications require complete documents and may require water/sewer evidence, well contracts, septic perc data, or utility evidence.
    • Floodplain development approval is required before a building permit in FEMA special flood hazard areas.
    • Road encroachment permits may be required for access to county roads or state highways.
    • Mass grading beyond building and utility excavation requires a mass grading permit.
    “Parcels in a FEMA designated special flood hazard area require Floodplain Development Approval Before applying for a building permit.”
    One more reviewed finding on this topic
    • Published (with conditions) — Residential building-permit application process in unincorporated Lyon County.
      “Incomplete paper applications cannot be accepted cannot be accpted at the counter. If applying on line your application will be rejected if all the documents are not uploaded at the time of applying.”

Nevada rules that apply here

  • Owner-builder exemptionAvailable (with conditions)

    An owner of property building or improving a residential structure for the owner's own occupancy and not intended for sale or lease, as an exemption from Nevada contractor-licensing requirements.

    • The owner must apply to the State Contractors' Board for the exemption.
    • Sale, lease, or offering the newly built structure for sale or lease within 1 year after completion creates a rebuttable presumption that the structure was built with intent to sell or lease.
    • The owner must submit an Owner-Builder Disclosure Statement to both the State Contractors' Board and the local building official responsible for issuing the permit.
    • The disclosure statement must be completed fully and accurately and signed under penalty of perjury.
    • The disclosure statement must include the owner's identifying information, county, assessor's parcel number, work description, permit type, exemption basis, and declarations that the owner owns the property, is building or improving it for own occupancy and not for sale or lease, the information is accurate and complete, and the owner will comply with applicable statutes, regulations, ordinances, and codes.
    • Unless the Board notifies the applicant within 10 days that the exemption is denied, the exemption is deemed approved.
    • If denied, the Board must provide reasons within 10 days; the applicant may submit supplemental materials, and the Board may approve if the materials address the denial reasons.

    board notification period: 10 days (If the Board does not notify the applicant of denial within 10 days after submission, the exemption is deemed approved.) · presumed sale or lease period: 1 year (Sale, lease, or offering the newly built structure within 1 year after completion creates a rebuttable presumption of intent to sell or lease.)

    “An owner of property who requests an exemption pursuant to this subsection must apply to the Board for the exemption.”
    One more reviewed finding on this topic
    • Available (with conditions) — Owner-builder exemption for an owner building or improving a residential structure for personal occupancy.
      “An owner of property who is building or improving a residential structure on the property for his own occupancy and not intended for sale or lease.”
  • Well permitLimited

    Drilling and use of domestic wells in Nevada.

    • Permits to appropriate groundwater are generally not required for drilling domestic-use wells, except as provided in NAC 534.315(8).
    • A waiver is required before drilling, deepening, rehabilitating, or replacing a domestic well when water service is available from a public utility, water district, or municipality furnishing water to the area.
    • A permit is required if more than 2 acre-feet per year is diverted for domestic use, water is used for non-domestic purposes, or the single-family dwelling is furnished water by an authorized water provider.
    • A domestic well may use no more than 2 acre-feet per year for a single-family household, including lawn, garden, and domestic animals.

    domestic well annual diversion threshold: <= 2 acre-feet per year (A permit is required above this threshold.)

    “permits [...] are not required for [...] domestic use. [...] unless a waiver [...] is first obtained [...] A permit must be obtained [...] if:”
  • Agricultural exemptionAvailable (with conditions)

    Division, exchange or transfer of Nevada land for agricultural purposes when every resulting parcel satisfies the statutory agricultural-subdivision exemption requirements.

    • The exemption applies only if each resulting parcel is 10 acres or more, unless local zoning laws require a larger minimum parcel size; in that event each resulting parcel must comply with the locally required parcel size.
    • Each parcel must have a zoning classification consistent with the master-plan designation, if any, for the parcel.
    • Each parcel must be describable by reference to standard subdivisions used in the United States Public Land Survey System.
    • Each parcel must qualify for agricultural-use assessment under NRS 361A.100 to 361A.160 and related regulations.
    • Each parcel must be accessible by an existing street, road or highway, through other adjacent lands owned by the same person, or by an agricultural-purpose easement granted in connection with the division, exchange or transfer.
    • The exemption does not apply if a resulting parcel ceases to qualify for agricultural-use assessment.
    • The exemption does not apply if new commercial buildings or residential dwelling units are proposed after the division, exchange or transfer; expansion, repair, reconstruction, renovation or replacement of preexisting buildings or dwelling units remains allowed when they are dilapidated, dangerous, at risk of being declared a public nuisance, damaged or destroyed by fire, flood, earthquake or another natural or man-made disaster, or otherwise in need of such work.

    minimum resulting parcel size: >= 10 acres (Local zoning may require a larger minimum parcel size.)

    “Except as otherwise provided in subsection 5, this chapter, including, without limitation, any requirements relating to the adjustment of boundary lines or the filing of a parcel map or record of survey, does not apply to the division, exchange or transfer of land for agricultural purposes if each parcel resulting from such a division, exchange or transfer: (a) Is 10 acres or more in size, unless local zoning laws require a larger minimum parcel size, in which case each parcel resulting from the division, exchange or transfer must comply with the parcel size required by those local zoning laws; (b) Has a zoning classification that is consistent with the designation in the master plan, if any, regarding land use for the parcel; (c) Can be described by reference to the standard subdivisions used in the United States Public Land Survey System; (d) Qualifies for agricultural use assessment under NRS 361A.100 to 361A.160, inclusive, and any regulations adopted pursuant thereto; and (e) Is accessible: (1) By way of an existing street, road or highway; (2) Through other adjacent lands owned by the same person; or (3) By way of an easement for agricultural purposes that was granted in connection with the division, exchange or transfer.”
  • Campground & park staysLimited

    Placement and use of manufactured homes as single-family residences outside mobile home parks under Nevada zoning law.

    • A local governing body’s zoning definition of single-family residence must include a manufactured home.
    • For placement outside a mobile home park, the home must be permanently affixed to a residential lot.
    • The home must have been manufactured within the 6 years immediately preceding the date it is affixed to the residential lot; this is a maximum age limit, not a minimum age.
    • Exterior siding and roofing must be similar in color, material and appearance to the exterior siding and roofing primarily used on other single-family residential dwellings in the immediate vicinity, as established by the governing body.
    • The home must consist of one or more sections and at least 400 square feet of living area, unless the governing body approves a lesser amount by administrative variance or another expedited procedure based on the lot’s size or configuration or the square footage of nearby single-family residences.
    • If the home has an elevated foundation, the foundation must be architecturally masked as determined by the governing body.
    • The standards must be objective and clearly documented and must not be adopted to discourage or impede attainable housing, including manufactured homes.
    • Before a building department issues a permit for placement of a used manufactured home under this section, the owner must surrender the certificate of title to the Housing Division of the Department of Business and Industry and submit proof of surrender to the building department.
    • The statute does not abrogate a recorded restrictive covenant prohibiting manufactured homes and does not apply within a historic district established under NRS 384.005 or 384.100.
    • A local government in a county with a population under 52,000 may adopt standards less restrictive than the statutory standards.

    maximum age at affixing: <= 6 years · minimum living area: >= 400 square feet (The governing body may approve less square footage by administrative variance or other expedited procedure based on the size or configuration of the lot or nearby single-family dwelling sizes.)

    “Except as otherwise provided in this section, in an ordinance relating to the zoning of land adopted or amended by a governing body, the definition of “single-family residence” must include a manufactured home.”
  • county zoning authorityGeneral

    Nevada counties adopting and enforcing zoning regulations for county territory, including unincorporated areas.

    • The governing body may divide the county into zoning districts and regulate or restrict buildings, structures and land within those districts.
    • The authority is subject to the exception in NRS 278.02071.
    • Zoning regulations must be adopted in accordance with the master plan for land use.
    • The regulations must address the statutory planning considerations, including air and water resources, open space and scenic resources, solar access, energy efficiency, recreation, natural-disaster protection, population plans when required, transportation and public facilities, land character and physical limitations, financial impact and suitability, health and general welfare, housing, existing neighborhoods and communities, solar or wind energy systems, and compatibility with military installations.
    • Additional notice and procedure requirements may apply to zoning changes, including requirements involving military installations, unincorporated towns, and counties with populations of 100,000 or more or 700,000 or more.
    “For the purposes of NRS 278.010 to 278.630, inclusive, the governing body may divide the city, county or region into zoning districts of such number, shape and area as are best suited to carry out the purposes of NRS 278.010 to 278.630, inclusive. Except as otherwise provided in NRS 278.02071, within the zoning district, it may regulate and restrict the erection, construction, reconstruction, alteration, repair or use of buildings, structures or land.”
  • county building authorityGeneral

    Nevada counties adopting building codes, regulating construction and building safety, issuing building permits, and enforcing those requirements in unincorporated areas.

    • Boards of county commissioners may regulate construction, maintenance and safety of buildings, structures and property within the county.
    • County authority is subject to NRS 244.368, 278.02315, 278.580, 278.582, 278.584, 278.5846, 278.586, NRS 444.340 to 444.430, inclusive, and NRS 477.030.
    • A county may adopt building, electrical, housing, plumbing or safety codes and establish necessary fees.
    • Under NRS 278.580, building-code adoption is subject to NRS 244.368 and NRS 278.586; the governing body may establish a reasonable fee schedule for building permits.
    • A building permit is required only after a building official is appointed and only within territory covered by the applicable building code or zoning regulations.
    • In counties with populations of 100,000 or more, additional construction and energy-code adoption and enforcement requirements apply.
    • A city building code may supersede less stringent county-code provisions within the city and, in counties under 700,000 population, within a one-mile limit outside city boundaries; farm or ranch buildings existing on March 30, 1959, are excluded from that supersession rule.
    “Subject to the limitations set forth in NRS 244.368, 278.02315, 278.580, 278.582, 278.584, 278.5846, 278.586, 444.340 to 444.430, inclusive, and 477.030, the boards of county commissioners within their respective counties may: 1. Regulate all matters relating to the construction, maintenance and safety of buildings, structures and property within the county.”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission — ask the county directly.

  • Minimum dwelling size — Minimum dwelling size in Lyon County zoning districts.
  • Lot coverage — Lot-coverage limits under Lyon County Title 15.
  • Camping on your land — Temporary camping on private land in unincorporated Lyon County.
  • Short-term rentals — Short-term rentals in Lyon County.

Each answer was extracted from an official source and independently re-checked against that source by a second reviewer. That is an evidence check, not legal advice. Rules change; confirm with the authority before you buy or build.

Water rights & wells in Lyon County

Whether a new home can legally get its own water here — the sub-state groundwater regime, from Nevada’s water agency.

Over-appropriated / declining

The aquifer here is over-appropriated and declining. A domestic well is usually still permit-exempt, but long-term supply is a genuine risk.

Household wellExempt up to a limit

A single-family domestic well is exempt from a water-right permit up to 2 acre-ft/yr statewide, but in a State-Engineer-designated basin you must obtain approval before drilling, the State Engineer may bar new domestic wells where a municipal supplier is available, and in the most stressed basins (e.g. Pahrump) a new domestic well requires relinquishing 2.0 acre-ft of existing water rights.

Limit: 2.0 acre-ft/yr single-family domestic (NRS 534.180); 0.5 acre-ft/yr floor if curtailed in a critical management area

Nevada Revised Statutes Chapter 534 ↗
  • Mason Valley (Basin 108)majority of county

    Over-appropriated State-Engineer-designated basin (committed groundwater rights exceed perennial yield); new appropriations are unavailable, and because the basin is designated a new exempt domestic well still needs a State-Engineer permit or waiver to drill (NAC 534.300/534.315).

    Nevada Division of Water Resources ↗
  • Churchill Valley (Basin 102)partial of county

    Over-appropriated State-Engineer-designated basin (committed groundwater rights exceed perennial yield); new appropriations are unavailable, and because the basin is designated a new exempt domestic well still needs a State-Engineer permit or waiver to drill (NAC 534.300/534.315).

    Nevada Division of Water Resources ↗
  • Fernley Area (Basin 076)partial of county

    Over-appropriated State-Engineer-designated basin (committed groundwater rights exceed perennial yield); new appropriations are unavailable, and because the basin is designated a new exempt domestic well still needs a State-Engineer permit or waiver to drill (NAC 534.300/534.315).

    Nevada Division of Water Resources ↗
  • Dayton Valley (Basin 103)partial of county

    Over-appropriated State-Engineer-designated basin (committed groundwater rights exceed perennial yield); new appropriations are unavailable, and because the basin is designated a new exempt domestic well still needs a State-Engineer permit or waiver to drill (NAC 534.300/534.315).

    Nevada Division of Water Resources ↗
  • Smith Valley (Basin 107)partial of county

    Over-appropriated State-Engineer-designated basin (committed groundwater rights exceed perennial yield); new appropriations are unavailable, and because the basin is designated a new exempt domestic well still needs a State-Engineer permit or waiver to drill (NAC 534.300/534.315).

    Nevada Division of Water Resources ↗
  • Antelope Valley — Walker (Basin 106)partial of county

    Over-appropriated State-Engineer-designated basin (committed groundwater rights exceed perennial yield); new appropriations are unavailable, and because the basin is designated a new exempt domestic well still needs a State-Engineer permit or waiver to drill (NAC 534.300/534.315).

    Nevada Division of Water Resources ↗
  • Bradys Hot Springs Area (Basin 075)partial of county

    Over-appropriated State-Engineer-designated basin (committed groundwater exceeds perennial yield, NDWR 2023 Basin Status Maps); new appropriations are unavailable and a new exempt domestic well needs State-Engineer clearance to drill (NAC 534.300/534.315, NRS 534.120).

    Nevada Division of Water Resources ↗
  • Tracy Segment (Basin 083)partial of county

    Over-appropriated State-Engineer-designated basin (committed groundwater exceeds perennial yield, NDWR 2023 Basin Status Maps); new appropriations are unavailable and a new exempt domestic well needs State-Engineer clearance to drill (NAC 534.300/534.315, NRS 534.120).

    Nevada Division of Water Resources ↗

Prior-appropriation state (first in time, first in right). Groundwater rules change and basin boundaries follow the aquifer, not the county line — confirm current well and appropriation rules with the Nevada state water agency before you buy or drill.Groundwater governance as of Jul 2026, cited to each administering agency.

Living off-grid in Lyon County, Nevada

Is Lyon County a good place to live off-grid or homestead?

Lyon County scores 35/100 on the Bolthole Index, a marginal county profile. Its strengths: a stronger property-autonomy legal backdrop and manageable long-term carry cost. Watch-outs: weak self-sufficiency basics: only 8″ of rain a year, in severe drought 46.3% of years and elevated mid-century heat, water, rain, or wildfire exposure.

Do you need a building permit in Lyon County, Nevada?

Lyon County generally requires a residential building permit, and it enforces county zoning. Onsite septic is permitted by Nevada state environmental health program (Division of Public and Behavioral Health Environmental Health Section, reorganized in 2025 under the Nevada Health Authority), unconfirmed for this county. Owner-builders may act as their own contractor to build their home. These answers are quoted from official sources and independently re-checked. Rules change and cities within the county differ — always confirm with the county before you buy or build.

Can you live in an RV or tiny home on your land in Lyon County?

Living in an RV on your own land in Lyon County is prohibited: Use of motor homes, travel trailers, or recreational vehicles as residences in unincorporated Lyon County. The cited county manufactured-home guidance distinguishes manufactured homes from motor homes and travel trailers and states that those recreational vehicles are not permissible as residences. A tiny home is prohibited. Confirm with the county before relying on it.

How much does land cost in Lyon County, Nevada?

Land in Lyon County runs about $3,107 per acre, based on the latest county data.

What is the water situation in Lyon County?

Lyon County gets about 8" of rain a year, with severe drought in roughly 46.3% of years. On water rights, Lyon County lies in the Mason Valley (Basin 108) — Over-appropriated State-Engineer-designated basin (committed groundwater rights exceed perennial yield); new appropriations are unavailable, and because the basin is designated a new exempt domestic well still needs a State-Engineer permit or waiver to drill (NAC 534.300/534.315)..

How remote is Lyon County?

A typical private-land location has about 4,179 people within 15 miles and 775,878 within 100 miles. These radius catchments are the published fallback where road routing is unavailable.

How Lyon compares in Nevada

Compare side-by-side →See all 17 Nevada counties ranked →