Home Additions & ADU in Whitney - One Fixed Price, Permits Handled

Fast, Reliable Home Additions & ADU Across Whitney

A home addition or ADU in Whitney typically runs $45,000 to $130,000 for a room addition, and $90,000 to $220,000 for a full detached ADU. That’s real money, and you should know exactly where it goes before the first block gets moved. Barrett & Sons Construction has worked the Whitney 89122 zip for years, and Tom Barrett’s crews know what these 1960s and 1970s concrete block homes need when it’s time to add square footage. Call (877) 610-1318 and we’ll walk the property with you, no charge and no pressure.

Call (877) 610-1318

The thing about Whitney is it’s not Las Vegas. It’s unincorporated Clark County, which means your permits, inspections, and code sign-offs all run through the Clark County Building Department, not the City of Las Vegas portal. A contractor who pulls permits through the wrong jurisdiction will stall your project before it ever starts, and we see that mistake happen on jobs near Boulder Highway and Flamingo Road more often than anyone wants to admit. We pull through Clark County from day one because that’s where Whitney lives.

Why Barrett & Sons Construction Is Whitney’s Preferred Home Additions & ADU Company

Tom Barrett put his name on this company in 1998, and his sons run the crews. When you call about an addition on your Whitney home, the person who shows up to measure is someone whose last name is on the contract. That matters in a place like Whitney, where neighbors talk over back fences on Russell Road and Tropicana Avenue, and word travels fast about who showed up on time and who didn’t.

We’ve handled additions across the 89122 zip, from garage conversions near Sam Boyd Stadium to junior ADUs tucked into the older ranch neighborhoods off Nellis Boulevard. The homes here share a common DNA: single-story concrete block construction, low-slope built-up roofs, and original aluminum wiring that was fine in 1972 but needs real attention when you’re adding a bedroom that will pull new circuits. We plan for that before we ever submit a permit application.

Every Whitney job gets permits pulled and inspections signed. Every price change arrives as a written change order before any work happens. And every job carries the 90-Day Done Right Promise in writing: if it’s not done right, Tom comes back and makes it right, one call. No voicemail maze. No out-of-state call center. A live person answers (877) 610-1318 around the clock.

Our Home Additions & ADU Services in Whitney

ADU Design & Permitting

An accessory dwelling unit on a Whitney lot starts with Clark County’s specific setback and utility requirements, which differ from City of Las Vegas rules in ways that catch out-of-area contractors off guard. We handle the design, the county permit submission, and the inspection scheduling so you’re not sitting on hold with a permit office that doesn’t know your street. A written scope and allowance sheet comes before any work begins, so you’ll see exactly what the design, engineering, and permit fees cost.

Garage Conversion ADU

Garage conversions in Whitney typically run $30,000 to $80,000, depending on whether you’re converting an attached garage on an existing slab or adding plumbing for a bathroom and kitchenette. The older CBS garages here often lack proper footings for living space, which means we may need to pour new concrete or reinforce the slab edge before framing interior walls. Caliche hardpan under many Whitney lots means any new trenching for sewer or water lines often requires jackhammering, and we budget that honestly from the start.

New Detached ADU

Building a detached ADU in Whitney runs $90,000 to $220,000 for a complete unit with its own kitchen, bath, and utility connections. Summer temperatures over 110°F compress the safe concrete-pour window to early morning, which is why our schedules for Whitney ADU foundations are built around the heat, not around a salesperson’s promise. We run new electrical service, water, and sewer lines with trenching planned for the caliche that sits under much of the 89122 zip.

Junior ADU & Interior Conversion

A junior ADU is the practical middle path: converting an existing bedroom or bonus room into a semi-independent living space with its own entrance and small kitchenette. These projects in Whitney usually fall below the full addition range because you’re working inside the home’s existing footprint. The tradeoff is that older Whitney floor plans weren’t designed for separate entrances, so we often reframe an exterior wall and add a door where a window used to be, then pull the permit through Clark County for the structural change.

We also handle room additions, second story additions, sunrooms, and enclosed patios across Whitney. If your project pushes beyond living space, our Kitchen Remodeling in Whitney and Bathroom Remodeling in Whitney crews step in to handle the finishes inside the new space.

Trusted Brands We Service in Whitney

When your Whitney addition needs new windows or patio doors, we install brands you can look up: Simonton, Ply Gem, and PGT. These aren’t mystery products off a van. Simonton windows handle the desert sun without warping, Ply Gem vinyl offers solid value for ranch homes that don’t need architectural glass, and PGT impact-rated products make sense if you’re adding a sunroom or enclosed patio that faces the afternoon heat. We order directly from supplier lines that stock for the Las Vegas Valley, so turnaround for Whitney jobs stays tight.

Common Home Additions & ADU Problems We See in Whitney Homes

• Concrete block wall modifications go wrong. Whitney’s 1960s and 1970s CBS homes often have unreinforced block walls that predate modern wind-load and seismic code. Cutting a new doorway or widening an opening without proper lintel replacement and wall tie retrofits turns a simple addition into a structural risk. We engineer these retrofits properly and pull the Clark County permit for the work.
• Aluminum wiring complicates new circuits. Many Whitney homes still carry original aluminum branch wiring. Adding a bedroom, office, or ADU means running new copper circuits and properly transitioning at the panel, not just tapping into whatever was there in 1971. We plan electrical scope with the same care as framing.
• Built-up roofs don’t like new penetrations. The low-slope built-up roofs on older Whitney ranch homes degrade faster in 110°F heat than manufacturers rate them for. When an addition ties into the existing roofline, that junction is where leaks start if the membrane isn’t properly patched and sealed. We inspect and address the existing roof condition before we close up the new framing.
• Caliche turns excavation into a jackhammer job. The Las Vegas Valley’s calcium carbonate hardpan sits just below the surface across much of the 89122 zip. Any new footings, trenching for utilities, or underground electrical runs on a Whitney ADU often require mechanical breaking. We budget for it in writing up front, so it doesn’t arrive as a surprise change order later.

Pricing for Home Additions & ADU in Whitney, NV

We Also Serve Cities Near Whitney

Beyond Whitney, our crews take additions and ADU projects in Paradise, Winchester, Sunrise Manor, and the surrounding Las Vegas Valley. If you’re a few streets over the line, call (877) 610-1318 and we’ll confirm coverage. Our full Home Additions & ADU team handles projects across the region.

FAQs - Home Additions & ADU in Whitney