Generally, an ADU in Clark County and the City of Las Vegas cannot exceed 50 percent of the primary dwelling’s floor area, and cannot exceed 1,200 square feet regardless of the main home’s size. Some jurisdictions have additional height and setback restrictions.
By Kingdom & Co.|2026-08-25T14:22:01-07:00August 21, 2026|Best Casita Builders in Las Vegas 2026|Comments Off on What is the maximum size of an ADU in Las Vegas?
About the Author: Kingdom & Co.
Kingdom & Co. is an award-winning luxury design-build firm in Las Vegas, handling custom homes, whole-home remodels, casitas, and focused single-room Small Luxuries projects under one roof. The team brings a collective 30 years of design and construction experience and is a back-to-back NARI Remodeler of the Year winner (2025 and 2026), an Architectural Digest AD Pro Directory member, and a 2025 Best of Las Vegas Gold winner for Best Custom Home Builder. Kingdom & Co. holds Nevada contractor licenses #0091618 and #0091629 and maintains an A+ rating with the Better Business Bureau. Learn more about the team at kingdomandco.com/about-us.
