Garage Conversion to ADU in Las Vegas
Convert an attached 2-car garage into a permitted, conditioned ADU or bonus living space. The fastest and least-expensive way to add a legal, rentable unit to a Las Vegas single-family home.
Scope of work
- Zoning + parking-replacement check for your parcel.
- Garage door removal, wall infill and matching exterior finish.
- Slab moisture barrier, insulation and framing to residential energy code.
- Dedicated mini-split HVAC, electrical sub-panel and lighting.
- Plumbing rough-in for kitchenette + full bath, tie-in to existing sewer lateral.
- Full interior finish: cabinets, counters, tile, flooring, drywall, paint.
- Permit filing, plan review response, and final inspections.
Typical investment
$74K – $130Kfor a permitted ADU conversion. Non-ADU (bonus room) conversions run $35K – $70K. Full breakdown in the ADU cost guide.
Related
FAQs
How much does a garage conversion cost in Las Vegas?
A permitted 2-car garage conversion to a conditioned ADU with kitchenette and full bath runs $74K–$130K in Clark County. Non-ADU conversions (bonus room, home gym, office) run $35K–$70K depending on plumbing and HVAC scope.
Can I convert my garage to a legal living space in Clark County?
Yes, on properly zoned lots. Clark County, City of Las Vegas, Henderson and North Las Vegas all allow garage-to-ADU conversions with permits, setback and parking replacement conditions. We verify zoning at design kickoff.
Do I lose off-street parking when I convert my garage?
Some jurisdictions require you to replace the covered parking (a new driveway pad or carport) as a condition of ADU permit. Others waive it near transit. This is scope-item #1 during feasibility.
How long does a garage conversion take?
12–18 weeks on-site once permits are issued. Add 4–8 weeks for design, engineering and Clark County plan review. Total 5–7 months contract to certificate of occupancy is typical.
What has to happen structurally?
The garage door opening is framed and infilled to match the exterior, the slab gets moisture and insulation upgrades, and the space is brought up to residential energy code (Title-24-equivalent). HVAC is usually a dedicated mini-split; plumbing ties into the existing sewer lateral.
