Accessory Structures in Nevada (2026)
25 rules on the books across Nevada, 7 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.
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 →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.
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 →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 →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 →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 →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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