ADU Company in West Hollywood, CA
ADU projects in West Hollywood cost $150,000 to $450,000+ depending on whether you’re converting an existing garage, building a detached unit, or tackling a carport-level project on an older dingbat building. West Hollywood’s 1.9-square-mile grid is dense with 1920s bungalow courts and 1950s dingbat apartment buildings, and most lots are already heavily built out. That means the typical West Hollywood ADU starts as a garage conversion, a carport enclosure, or a second-story addition rather than a ground-up backyard build. Call (254) 602-5618 for a written price on your specific lot.
Why West Hollywood Homes Are Different
West Hollywood packs roughly 35,000 residents into less than two square miles, and the housing stock reflects decades of infill. Streets like Harper, Kings, and Sweetzer are lined with Spanish Colonial bungalow courts from the 1920s and 1930s, while the blocks south of Santa Monica Boulevard hold a concentrated run of 1950s and 60s dingbat buildings, those stucco walk-ups on open carport stilts. On bungalow-court lots, detached garages at the rear are often the only realistic ADU footprint. On dingbat parcels, the carport slab itself becomes the conversion candidate.
That carport pathway comes with a West Hollywood-specific wrinkle. A meaningful share of those older dingbat buildings fall under the city’s mandatory soft-story seismic retrofit ordinance, which means a carport-level ADU conversion frequently has to be engineered and priced alongside structural steel upgrades from day one. We flag this on the first site visit because it changes the budget conversation immediately. A homeowner who walks in expecting a simple $150K garage conversion can quickly be looking at a $300K+ bundled structural project, and that’s not a surprise anyone should absorb mid-permit.
The climate here works in homeowners’ favor. West Hollywood sits at the base of the Hollywood Hills in a mild, near-coastal microclimate that rarely pushes ADU mechanical systems hard. The practical exception is north-facing lots on hillside-adjacent blocks, where accumulated shade and surface moisture can affect foundation siting and exterior waterproofing choices. We account for that during design, not during construction.
Our Main West Hollywood Services
West Hollywood homeowners call us most often about three things: adding square footage to an existing home, converting a garage into livable space, and building a full ADU on a small or unusual lot.
Home Addition Contractor in West Hollywood
Home additions in West Hollywood usually mean building up rather than out, because side yards are measured in inches on most bungalow-court lots. Second-story additions over existing Spanish Colonial and Craftsman structures require careful roofline integration, and the city’s design review process pays close attention to street-facing elevations. We handle the structural engineering, the seismic requirements, and the permit sequencing as one package, so the price you’re quoted is the price you pay. Home Addition Contractor in West Hollywood
Garage Conversion Contractor in West Hollywood
Detached garages on West Hollywood’s rear-alley lots are the most common ADU conversion candidates in the city. The catch is that many of those garages sit on dingbat parcels subject to the soft-story retrofit ordinance, and some sit on lots with RSO-covered tenants, which triggers a compliance review before any permit gets pulled. We start every garage conversion with a structural and RSO audit so the budget reflects actual conditions. Garage Conversion Contractor in West Hollywood
ADU Builders in West Hollywood
Detached ADUs in West Hollywood are usually built on the rear footprint of a bungalow-court lot or as a second unit above an existing garage. Small lots mean tight setbacks, and the city’s permitting office reviews every detached unit for height, privacy, and neighbor-impact concerns. We’ve built enough ADUs in WeHo to know where the permit friction points are before the plans go in, and we price the project with those costs already on the page. ADU Builders in West Hollywood
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in West Hollywood
We work with Abodu, Cover, and James Hardie siding on West Hollywood projects, keeping material lead times short and finishes matched to the city’s Spanish Colonial and mid-century stock. For help choosing between a panelized system and stick-built framing for your lot, see our brands page.
Pricing for ADU Company in West Hollywood, CA
| Service | Typical range in West Hollywood |
|---|---|
| Garage conversion ADU (single-car) | $150,000 – $200,000 |
| Garage conversion ADU (two-car) | $180,000 – $250,000 |
| Carport conversion on dingbat parcel | $300,000 – $400,000+ (with soft-story retrofit) |
| Detached ADU, new build (studio – 1BR) | $200,000 – $300,000 |
| Detached ADU, new build (2BR) | $280,000 – $400,000 |
| Second-story home addition | $250,000 – $450,000 |
| Above-garage ADU | $220,000 – $350,000 |
| Pre-fab ADU (Abodu/Cover), including site work | $180,000 – $350,000 |
| Full kitchen + bath in ADU | $45,000 – $80,000 |
| Foundation and utility connections for detached ADU | $35,000 – $70,000 |
What pushes prices up in West Hollywood is the structural work on dingbat carport conversions and the design-review process on street-visible additions. What doesn’t change is our pricing model: you get a written price before any work starts, and that number holds unless you change the scope in writing.
Neighborhoods We Serve in West Hollywood
We run jobs across the full 1.9-square-mile city, from the bungalow courts east of La Cienega to the hillside-adjacent blocks north of Sunset. Scheduling is tightest in the multi-unit corridors, where soft-story retrofits and RSO reviews slow the permit timeline, so call early to get on the calendar.
- Norma Triangle
- Tri-West
- West Hollywood West
- Mid-City West area, near Beverly
- Eastside, near the La Cienega corridor
Service Area – Cities Near West Hollywood
While this page covers West Hollywood specifically, our crews also serve homeowners in Beverly Hills, CA, Studio City, CA, North Hollywood, CA, and Sherman Oaks, CA. Each city has its own permit and design-review culture, and we adjust our process accordingly.
Serving West Hollywood, CA - Our Local Coverage Area
We’re based in the West Hollywood area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About ADU Company in West Hollywood
Site assessments typically happen within a week of your call, and permit submission follows once the RSO and structural audit is complete. West Hollywood’s permit review adds time on dingbat parcels and RSO-covered lots, so expect a longer pre-construction phase in those cases. Call (254) 602-5618 to get on the schedule.
Every ADU in West Hollywood needs city permits, and parcels with existing RSO-covered tenants require a compliance review before design can be finalized. Some bungalow-court properties also have historic-district overlay rules that affect exterior design. We handle the full permit package so you’re not navigating the city counter alone.
Yes. Every project includes the 365-Day Done Right Promise in writing: if the work isn’t right within a year of completion, we come back and make it right at no charge. It’s a written guarantee, not a handshake, and it’s delivered on every West Hollywood job before work begins.
What happens when you call
- 1A real person answersNo phone trees - talk to a local adu pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What West Hollywood Customers Say
"The ADU came out beautiful and the permitting, which terrified me, was handled start to finish. They kept me updated every week so I was never wondering what was happening."
- Shauna Mills"A whole backyard ADU from scratch. Terrified me going in, but they kept me updated weekly and there were no nasty surprises. Quality work and a fair price."
- Noreen Fletcher"Built a backyard unit for my mother in law. They handled the permits, gave me a real timeline, and stuck to it within a few days. The written price is what we paid, which anyone who's done construction knows is rare."
- Dennis Fairchild