Accessory Structures in Nevada (2026)
32 rules on the books across Nevada, 9 cities and counties. Select a rule to read the full details.
Severity: Few Restrictions · Light Restrictions · Some Restrictions · Significant Restrictions · Heavy Restrictions
ADU Rules
Rules for building accessory dwelling units (granny flats, in-law suites) including size limits, parking requirements, and owner-occupancy rules.
Elko County
Significant RestrictionsUnincorporated Elko County, Nevada has no general accessory dwelling unit category. Elko County Code § 4-2-3(B)(20)…
Read full rule →North Las Vegas
Significant RestrictionsAccessory dwelling units in North Las Vegas's O-L, R-E, R-EL, and R-1 districts need a special use review approval, not…
Read full rule →Clark County
Some RestrictionsIn unincorporated Clark County, accessory living quarters are a permitted accessory use in single-family zoning…
Read full rule →Henderson
Some RestrictionsHenderson caps accessory dwelling units at 25% of the main home's floor area or 1,000 square feet, whichever is…
Read full rule →Las Vegas
Some RestrictionsLas Vegas allows one Residential Accessory Dwelling Unit per lot as a conditional use under the Unified Development…
Read full rule →Lyon County
Some RestrictionsIn unincorporated Lyon County, Nevada, the Rural Residential 20-acre minimum (RR-20) zone allows only one accessory…
Read full rule →Reno
Some RestrictionsReno's zoning code caps most residential lots at one detached accessory dwelling unit on top of the lot's normal limit…
Read full rule →Sparks
Some RestrictionsSparks allows one accessory dwelling unit per single-family lot under Municipal Code Section 20.03.003. An ADU can be…
Read full rule →Washoe County
Some RestrictionsIn unincorporated Washoe County, one ADU is allowed per parcel. Attached ADUs need a 5,000 sq ft lot; detached need…
Read full rule →ADU Impact Fees
Impact fees, school fees, utility hookup charges, and waivers for ADUs. Many jurisdictions exempt ADUs under 750 sq ft from impact fees per state law.
ADU Rental Restrictions
Whether an ADU can be rented short-term (Airbnb), 30-day minimums, separate rental licenses, and long-term lease requirements.
Shed & Carport Rules
When a storage shed or carport needs a permit, the square-footage exemption thresholds, and the setback and height limits that apply either way.
Clark County
Some RestrictionsIn unincorporated Clark County, a detached one-story shed used for tool or storage space skips the building permit only…
Read full rule →Elko County
Some RestrictionsIn unincorporated Elko County, Nevada, a detached accessory building such as a shed must stay at least five feet from…
Read full rule →Henderson
Some RestrictionsHenderson exempts sheds 200 square feet or smaller and 8 feet or less in height from setbacks and placement rules…
Read full rule →Las Vegas
Some RestrictionsLas Vegas requires building permits for sheds over 200 square feet. Smaller sheds may still require a permit if they…
Read full rule →Lyon County
Some RestrictionsUnincorporated Lyon County caps every accessory building, including sheds and detached garages, at 30 percent of the…
Read full rule →North Las Vegas
Some RestrictionsA detached shed or accessory building on a North Las Vegas single-family lot must meet the main house's front-yard…
Read full rule →Reno
Some RestrictionsReno caps detached accessory structures like sheds at 1,600 square feet or half the house's footprint on standard SF-3…
Read full rule →Washoe County
Some RestrictionsDetached sheds and accessory structures 12 feet or less in height may sit within required rear and side setbacks if…
Read full rule →Sparks
Few RestrictionsSparks exempts one-story sheds of 200 square feet or less from building permits. They must sit in the side or rear…
Read full rule →Garage Conversions
Rules for converting a garage into living space, including whether you need to replace the lost parking and what building codes apply.
North Las Vegas
Significant RestrictionsConverting a garage into living space in North Las Vegas requires a conditional or special use permit and proof the…
Read full rule →Sparks
Some RestrictionsConverting a detached garage into living space in Sparks is legal only as an accessory dwelling unit under Municipal…
Read full rule →Washoe County
Some RestrictionsConverting a garage or accessory structure into livable space turns it into a dwelling unit subject to the county's ADU…
Read full rule →Tiny Homes
Zoning rules for tiny houses on wheels and foundations, including minimum square footage requirements and where they can be placed.
Nevada: statewide
StatewideLight RestrictionsNevada law forces larger counties and cities to zone for tiny houses. NRS 278.253 requires every county over 100,000…
Read full rule →Clark County
Significant RestrictionsIn unincorporated Clark County, tiny homes are allowed outright only in the RS2 zoning district; everywhere else, AG…
Read full rule →Las Vegas
Significant RestrictionsLas Vegas caps a Residential Tiny House at 400 square feet of gross floor area, excluding lofts, and it must sit on a…
Read full rule →Elko County
Some RestrictionsElko County, Nevada adopts the 2018 International Residential Code with Appendix Q, Tiny House, as part of its…
Read full rule →Henderson
Some RestrictionsHenderson caps a tiny-house accessory dwelling unit at 400 square feet, exempts it from matching the main house's…
Read full rule →Lyon County
Some RestrictionsIn unincorporated Lyon County, Nevada, a “tiny house” is defined by the 2018 International Residential Code as a…
Read full rule →North Las Vegas
Some RestrictionsNorth Las Vegas zoning treats tiny houses as a distinct residential use. A tiny house park or subdivision needs a…
Read full rule →Sparks
Some RestrictionsSparks treats a tiny home on a residential lot as an accessory dwelling unit under Municipal Code Section 20.03.003…
Read full rule →Washoe County
Some RestrictionsA manufactured or modular home built within 6 years of placement may serve as a detached ADU if permanently affixed and…
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