Accessory Structures in Henderson, NV (2026)
4 verified accessory structures rules for Henderson, Nevada, sourced directly from the municipal code and official government pages.
Verified from official government sources
ADU Rules
Henderson caps accessory dwelling units at 25% of the main home's floor area or 1,000 square feet, whichever is greater, and allows only one ADU per lot.
Accessory Dwelling Unit Rules in Henderson
Some RestrictionsHenderson Development Code § 19.9.4.B.6.b (ii, iii)
ii. Maximum Size. Accessory dwelling units shall be no more than 25 percent of the floor area of the principal dwelling or 1,000 square feet in size, whichever is greater, except that a tiny house may be no larger than 400 square feet (excluding lofts) or as otherwise defined in the International Residential Code. An attached garage is not considered part of the accessory dwelling unit for the ...
ADU Impact Fees
Henderson charges a residential construction tax, capped at $1,000 per unit, on new dwelling units under HMC Section 19.17, and an accessory dwelling unit counts as a unit before you get a building permit.
ADU Construction Tax in Henderson
Some RestrictionsHenderson Development Code § 19.17.1
There is hereby imposed and shall accrue and be collected a residential construction tax, as provided in this Section, upon the privilege of constructing residential dwelling units, including, without limitation, conventionally constructed houses, apartments, mobile homes, nonresidential structures remodeled for use as dwelling space, room additions, mobile home parks, and mobile home estates w...
Shed & Carport Rules
Henderson exempts sheds 200 square feet or smaller and 8 feet or less in height from setbacks and placement rules; larger accessory structures need a 5-foot rear and side setback and stay under a lot-coverage cap.
Henderson Shed Size, Setback & Permit Rules
Some RestrictionsHenderson Development Code (HMC Title 19) § 19.9.3.C.2
Rear: 5 feet. ... Interior side: 5 feet. ... c. Exemption to Placement and Setback Requirements. i. Single story accessory structures 8-feet or less in height and 200 square feet or less are exempt from the placement standards and the rear, interior side, and corner side setback standards. The structure may not be located in the front yard. A maximum of one structure may be exempted per parcel.
Tiny Homes
Henderson caps a tiny-house accessory dwelling unit at 400 square feet, exempts it from matching the main house's design in the rear yard, and requires a permanent foundation.
Tiny Houses as Accessory Units in Henderson
Some RestrictionsHenderson Development Code § 19.9.4.B.6.b (Accessory Dwelling Unit – Standards)
Accessory dwelling units shall be no more than 25 percent of the floor area of the principal dwelling or 1,000 square feet in size, whichever is greater, except that a tiny house may be no larger than 400 square feet (excluding lofts)... If located in the rear yard, a tiny house is exempt. A tiny house must be placed on a permanent foundation.
Looking for Clark County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Henderson city rules.
Accessory Structures in Clark County →