ADU (Accessory Dwelling Unit) Permit in Las Vegas (2026)
ADU (Accessory Dwelling Unit) permit requirements, fees, and process for Las Vegas, NV. Find out if you need a permit and how to apply.
Yes, a ADU (Accessory Dwelling Unit) permit is required in Las Vegas, NV.
A ADU (Accessory Dwelling Unit) permit is required in Las Vegas, NV. The Las Vegas Building & Safety Division handles permit applications for Las Vegas. Below you will find the current thresholds, fees, and process for obtaining a adu (accessory dwelling unit) permit in Las Vegas.
When Is a Permit Required?
When a ADU (Accessory Dwelling Unit) Permit Is Required in Las Vegas: All ADU construction and conversions
Permit Fees
ADU (Accessory Dwelling Unit) Permit Fees in Las Vegas: $3,000–$10,000 including impact fees. Estimated timeline: 45 days maximum (Nevada AB 383 mandate).
Estimated timeline: 45 days maximum (Nevada AB 383 mandate)
How to Get a ADU (Accessory Dwelling Unit) Permit in Las Vegas
Verify whether your project meets the permit threshold in Las Vegas: All ADU construction and conversions.
Prepare your permit application and plans. Contact the Las Vegas Building & Safety Division at https://www.lasvegasnevada.gov/Government/Departments-Offices/Building-and-Safety for required documentation.
Submit your application online at https://onlineservices.lasvegasnevada.gov/ or in person at the Las Vegas Building & Safety Division.
Pay the permit fee: $3,000–$10,000 including impact fees.
Wait for plan check approval. Estimated timeline: 45 days maximum (Nevada AB 383 mandate).
Schedule required inspections through https://onlineservices.lasvegasnevada.gov/. All inspections must pass before project is finalized.
Important: Las Vegas Building & Safety permit. Nevada AB 383 mandates 45-day processing for complete ADU applications. Clark County School District development fee applies. Water Reclamation District capacity fees apply.
Las Vegas Building & Safety Division
Phone: (702) 229-6251
Website: https://www.lasvegasnevada.gov/Government/Departments-Offices/Building-and-Safety
Online Permits: https://onlineservices.lasvegasnevada.gov/
Hours: Mon-Fri 7:30am-4:00pm
Frequently Asked Questions
Can I build an ADU on my Las Vegas property?
Yes. Nevada AB 383 (2021) requires Las Vegas to allow ADUs by right on single-family lots. You can build a detached ADU up to 1,200 sqft with only ministerial (administrative) permit approval — no neighborhood hearings or variance required. No owner-occupancy requirement. Permitting must be processed within 45 days of a complete application. Clark County School District development fees and Water Reclamation capacity fees apply.
Are Airbnb and short-term rentals allowed in Las Vegas?
Not in most residential zones. Las Vegas banned new short-term rental licenses in R-E, R-D, R-1, and R-2 zones in 2022. Existing licensed STRs were grandfathered through expiration. STRs are permitted in commercial zones. Important: Most of the Las Vegas Strip and resort area is in unincorporated Clark County — not Las Vegas city limits — which has a separate STR licensing system (Clark County Code Chapter 8.145). Verify your property's jurisdiction before applying.
What is the difference between Las Vegas city and Clark County jurisdiction?
Las Vegas city limits cover the urban core (downtown Las Vegas, most residential neighborhoods). The famous Las Vegas Strip (casino resort corridor) is in unincorporated Clark County and subject to Clark County zoning, not Las Vegas city codes. Henderson and North Las Vegas are separate incorporated cities with their own codes. When looking up permits, ADU rules, or STR requirements, always verify whether your address falls within Las Vegas city limits, Clark County unincorporated, Henderson, or North Las Vegas at the Clark County Assessor's website (assessor.clarkcountynv.gov).
Do I need a permit for a patio cover (ramada) in Las Vegas?
Yes. Patio covers, shade structures, and ramadas are very common in Las Vegas due to extreme summer heat (110°F+). Any permanent attached or detached patio cover requires a Las Vegas Building & Safety permit. Freestanding shade sails and fabric canopies under certain sizes may be exempt. Structural permits require plans showing attachment to the house foundation and wind-load calculations for Clark County's desert wind conditions.
How does solar net metering work in Las Vegas?
Las Vegas is served by NV Energy (Nevada Power). Nevada NRS 704.776 protects net metering rights — excess solar generation credited at approximately retail rate. Las Vegas has one of the highest solar irradiance levels in the US, making solar highly cost-effective. NV Energy interconnection agreement required for grid-tied systems. Las Vegas Building & Safety electrical permit required. SolarAPP+ available for faster permitting on eligible residential systems. No solar mandate applies to existing homes.
What are the water conservation rules for new construction in Las Vegas?
The Southern Nevada Water Authority (SNWA) imposes strict water conservation rules — Las Vegas has one of the most aggressive water restriction programs in the US due to Colorado River allocation limits. New residential construction must use water-efficient fixtures and no ornamental grass is permitted in new front yards (per Southern Nevada Water Authority Rule 3). Grass removal rebates up to $3/sqft are available. Swimming pools are allowed but require water-efficient equipment. Water Smart Landscapes rebates available for desert landscaping conversions.
Source: Las Vegas Building Code — ADU (Accessory Dwelling Unit) Requirements. Last verified April 6, 2026. View source