Nevada's AB 396 pushes big jurisdictions to allow ADUs (Reno already did); MHD seals the building, and seismic matters statewide.
Building approval
Nevada Manufactured Housing Division (NRS 461)
Program
MHD insignia of approval — State insignia/seal program
ADU law
AB 396 (2025) — big counties must allow (statewide)
ADU summary
Large jurisdictions can't ban ADUs and must adopt ordinances by July 2026.
Site / structural drivers
Desert heat (south); Sierra snow; high seismic
Verdict
Statewide ADU directive (2025)
Get your Nevada permitting roadmap
Tell us your project and we'll send back a parcel-specific permitting roadmap for Nevada — the rules above applied to your lot — plus a real quote, not a range.
General information, current as of 2026 — not legal advice. Confirm specifics with your local jurisdiction.
Increasingly, yes. AB 396 (2025) directs the most populous Nevada counties and cities to adopt ADU ordinances (deadline around July 2026) and prevents them from banning ADUs outright, though they can add reasonable requirements. Reno adopted its citywide ADU ordinance on October 8, 2025; Las Vegas and Clark County are working through theirs. Confirm your jurisdiction's current ordinance and timeline.
The Nevada Manufactured Housing Division (within the Department of Business and Industry), under NRS Chapter 461. Each unit of factory-built housing or modular component must bear the Division's insignia of approval, with a unique serial number, before it leaves the manufacturer's plant. With the insignia, your local jurisdiction permits the site work — foundation, utilities, zoning — without re-reviewing the structure.
Reno's October 2025 ordinance allows ADUs citywide where single-family homes are permitted. Key standards: the ADU can't be taller than the primary home, requires one additional parking space, needs a minimum 5,000 sq ft lot, and is capped at the lesser of 40% of the primary dwelling's floor area or 1,000 sq ft. Short-term rental of ADUs was a point of debate, so check Reno's STR rules separately.
Heat, snow, and seismic depending on where you are. Southern Nevada (Las Vegas) is an extreme-heat envelope problem; the Reno-Tahoe area brings Sierra snow and cold. And statewide, Nevada is one of the most seismically active states, so seismic design is a real factor everywhere. PSL Modular sets the envelope and seismic spec from your site.
Yes. Las Vegas hospitality and Reno's industrial growth (data centers, logistics, Tahoe-Reno Industrial Center) drive workforce-housing demand, and modular delivers multi-unit projects on a fast schedule, all built to the state insignia standard and engineered for the local climate and seismic.
PSL Modular units are permittable in all 50 states. Pick yours for the building-approval path, the ADU law, and the structural spec your site needs.