







A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateADU Company in West Hollywood, CA
West Hollywood is one of the most compact, densely built cities in Los Angeles County, and that single fact shapes almost every ADU and addition project we take on here. Lots are tight, homes sit close together, and the housing stock runs from 1920s Spanish bungalows to sharp, modern infill construction. That means setbacks, utility placement, and sightline rules all get negotiated block by block. Benson ADU Builders brings written pricing, prefab options from brands like Abodu and Dvele, and a live person on the phone whenever you call (903) 568-7222.
Why West Hollywood Homes Are Different

West Hollywood lots don’t leave much room to breathe. Many of the single-family parcels in neighborhoods like Norma Triangle and the West Hollywood West area sit on 5,000-square-foot or smaller lots, with structures built close to property lines and garages often tucked into alley access. That changes the ADU conversation immediately: a detached unit usually means going vertical or working within an existing footprint, while a garage conversion becomes attractive because the structure and its setback are already in place. Setbacks are the minimum distance a building must sit from a property line, and in West Hollywood, those lines are frequently only a few feet from an existing wall.
Climate is another variable we plan around. West Hollywood gets real heat in the summer, which makes insulation, window orientation, and cooling systems a bigger deal than they would be in a coastal city. A site-built room addition facing west will bake in the afternoon unless we design for it. Prefab panel systems from Cover and Dvele handle that well because the envelope performance is engineered before panels ever arrive in West Hollywood. Hillside lots near the Hollywood Hills edge add grading and retaining-wall work that flat-lot projects never touch.
Our Main West Hollywood Services
The two calls we get most often from West Hollywood homeowners are about building an ADU and expanding the main house itself. Here’s what each one involves here.
ADU Builders in West Hollywood
Backyard and garage-conversion ADUs are the most direct way to add rentable or family housing on a West Hollywood lot. We walk the property, measure what the setback lines allow, and put prefab options from Abodu, Cover, or Dvele next to a site-built estimate so you can compare real numbers. On a typical West Hollywood parcel, the deciding factor is often whether the existing garage footprint can be reused, which saves foundation work. Every quote is a written price before any work starts. ADU Builders in West Hollywood.

Home Addition Contractor in West Hollywood
A full home addition in West Hollywood usually means extending into the rear yard, building over a garage, or capturing a side yard that’s been doing nothing. The city’s tight lot dimensions require careful massing so the new volume doesn’t crowd the neighbor or block natural light. We handle plans, permits, foundation, framing, and finishes as one written scope. Because West Hollywood homes vary so much in age and condition, we always check the existing foundation and roofline before pricing the tie-in work. Home Addition Contractor in West Hollywood.

Room Addition Contractor in West Hollywood
A single room addition, whether it’s a primary-suite bump-out, a home office, or a second bathroom, is the smallest footprint project we take on in West Hollywood, but it still has to clear the same planning checks. On smaller lots, a room addition often makes more sense than a detached ADU because it uses the existing structure’s foundation and roof line. We price it as its own job with its own written scope, not as a side note to a larger remodel. Room Addition Contractor 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 build with and around the prefab and cladding systems West Hollywood homeowners ask about by name: Abodu, Cover, Dvele, and James Hardie siding. These are products you can research independently before we ever schedule a site visit. See the full list on our brands page.
Pricing for ADU Company in West Hollywood, CA
| Service | Typical range in West Hollywood |
|---|---|
| Prefab ADU (Abodu, Cover, Dvele) | $180,000 – $350,000 |
| Site-built detached ADU | $225,000 – $400,000 |
| Garage conversion ADU | $120,000 – $220,000 |
| JADU (junior ADU inside existing home) | $70,000 – $140,000 |
| Home addition (single room, site-built) | $90,000 – $180,000 |
| Primary suite addition | $110,000 – $210,000 |
| Second-story addition | $200,000 – $400,000 |
| Room addition over garage | $130,000 – $250,000 |
| Bathroom addition | $40,000 – $90,000 |
| Home office room addition | $55,000 – $120,000 |
In West Hollywood, the big price movers are lot access, soil conditions on hillside-adjacent parcels, and whether the existing foundation can carry the new load. Whatever the job, Benson ADU Builders puts a written price in front of you before any work begins, and that price doesn’t change unless you change the scope.
Neighborhoods We Serve in West Hollywood

Our crews work across the full city of West Hollywood, from the flats of the West Hollywood West neighborhood to the tighter, older lots around Norma Triangle and the eastern blocks near Plummer Park. We’re familiar with the different lot patterns and access conditions in each area, which speeds up site walks and pricing.
- West Hollywood West
- Norma Triangle
- Tri-West
- Eastside / Plummer Park area
- Hollywood Hills edge (Doheny area)
We typically schedule site visits across West Hollywood within a few business days of your call, and our pricing work happens on that visit so you’re not waiting for a follow-up email.
Service Area – Cities Near West Hollywood
We serve West Hollywood homes directly, and our crews also cover the surrounding Westside and Valley-adjacent communities where the building conditions are similar: Beverly Hills, CA, Studio City, CA, North Hollywood, CA, and Sherman Oaks, CA. Dispatch and scheduling are coordinated from the brand’s Los Angeles office, with crews serving West Hollywood locally.
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 walks and written estimates usually happen within a few business days in West Hollywood, then the schedule depends on design scope and permit review. Prefab ADUs often move fastest because the structure is built off-site while site work proceeds. Call (903) 568-7222 and we’ll tell you what a realistic start looks like for your specific lot.
Many West Hollywood homes fall outside HOA jurisdiction, but if your property does have an HOA, we’ll identify that early and include any required review in the project plan. The city’s own planning rules are the main gate, and those we handle as part of the written scope.
On the tighter lots common in West Hollywood, a garage conversion usually wins on cost and speed because it reuses an existing foundation and roofline. A detached ADU makes sense when the garage is too small or you want to keep vehicle parking. We’ll price both and show you the delta before you commit to either.
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
"Booked a consult online and met the project manager two days later. Weekly progress updates arrived by text with photos. ADU finished on schedule."
- Hannah W."Clean, quiet crew. They respected the neighbors, kept noise to working hours, and swept the driveway every evening."
- Hope C."Communication was the best part. I always knew what was happening that week without having to ask."
- Dolly N.



