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
Adding an ADU in West Hollywood means working with tight lots, hillside setbacks, and a city permit process that moves at its own speed. Homes here skew smaller and older than the LA County average, so most projects start with a careful look at what the existing foundation and roofline can actually carry. We handle the whole scope: detached ADUs, attached additions, room additions, and garage conversions. Want to talk through what’s actually buildable on your lot? Call (472) 248-8213.
Why West Hollywood Homes Are Different
West Hollywood’s housing stock is dense, much of it built between the 1920s and 1960s. That means narrow side yards, shared walls, and foundation work that requires shoring more often than not. The hillside areas north of Santa Monica Boulevard add another layer: graded lots, retaining walls, and drainage that has to be rethought when you add square footage.
The city’s permit desk has specific ADU requirements, including height limits tied to your zone and fire-safety rules in hillside neighborhoods. HOAs in some condo and co-op communities add their own review step before the city will sign off. We handle the paperwork, but you should know going in that a West Hollywood permit typically takes longer than one in a flat, unincorporated part of the county. The payoff is a rental or family unit in a neighborhood where rent per square foot is among the strongest in the region.
Our Main West Hollywood Services
These are the two types of projects West Hollywood homeowners call us about most often, along with a third option for smaller scope.
Home Addition Contractor in West Hollywood
A home addition in West Hollywood usually means extending outward on a narrow lot or building up where height limits allow. We inspect the existing structure first, because older foundations here often need selective reinforcement before new walls tie in. The goal is a clean connection between old and new so the addition doesn’t read like an afterthought. If you’re weighing a bump-out, a full second-story addition, or a kitchen expansion, start with the Home Addition Contractor in West Hollywood page for the full scope of work and pricing detail.
ADU Builders in West Hollywood
A detached ADU on a West Hollywood lot is often the highest-value square foot you can add. Because many lots are 40 feet wide or less, we spend real time on the setback (the required gap between your new structure and the property line) before recommending a footprint. Prefab options like Abodu and Cover can shorten on-site framing time here, which matters when your street has limited staging room. See the ADU Builders in West Hollywood page for pricing by size and full permit notes.
Room Addition Contractor in West Hollywood
A single room addition often makes the most sense when you don’t want to disturb a shared wall or can’t justify a full ADU under West Hollywood’s floor-area rules. These projects usually run faster, but they still need the same structural review, especially on hillside lots where soil movement is a known issue. The Room Addition Contractor in West Hollywood page covers what a bathroom, bedroom, or home office addition costs here.
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’re experienced with James Hardie cladding systems, Abodu and Cover prefab ADU shells, and Dvele modular construction. James Hardie trim and board is one of the easiest ways to give a new ADU or addition the same fire-rated exterior the house already has. For a fuller rundown of what we service, see our brands page.
Pricing for ADU Company in West Hollywood, CA
| Service | Typical range in West Hollywood |
|---|---|
| Detached ADU, 400 – 600 sq ft (prefab) | $180,000 – $260,000 before site work |
| Detached ADU, 400 – 600 sq ft (site-built) | $210,000 – $310,000 before site work |
| Detached ADU, 600 – 800 sq ft | $260,000 – $380,000 before site work |
| Detached ADU, 800 – 1,000 sq ft | $340,000 – $470,000 before site work |
| Garage conversion to ADU | $120,000 – $210,000 |
| Attached ADU / junior ADU | $140,000 – $240,000 |
| Home addition, 400 – 600 sq ft | $160,000 – $250,000 |
| Home addition, 600 – 800 sq ft | $220,000 – $340,000 |
| Room addition, single room (120 – 220 sq ft) | $70,000 – $140,000 |
| Site work, grading, and foundation | $25,000 – $80,000 depending on hillside and soil |
In West Hollywood, hillside lots push foundations and retaining into the higher end of those ranges. Older homes can also add selective demolition and structural upgrades before framing starts. Whatever the number is, we put it in writing before any work begins, and it stays the number you pay.
Neighborhoods We Serve in West Hollywood
We work across central and north West Hollywood, including the areas where permits move at different speeds depending on zone and hillside overlay.
- Norma Triangle
- West Hollywood West
- Kings Road area
- Harper Avenue corridor
- North of Santa Monica Boulevard (hillside zones)
In most West Hollywood neighborhoods we can schedule an initial site walk within a few business days. Hillside lots often need a second visit for grading and access review.
Service Area – Cities Near West Hollywood
We also work in the communities directly around West Hollywood. If you’re just over the line in Beverly Hills, CA or Studio City, CA, the permit process and lot conditions shift, so we cover those on their own pages. The same goes for North Hollywood, CA and Sherman Oaks, CA, where setback rules and hillside overlays differ meaningfully from West Hollywood.
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 can usually happen within a few business days anywhere in West Hollywood. From there, the city’s plan check and permit review is the real timeline driver, typically several months on most lots. Call (472) 248-8213 and we’ll give you a realistic schedule for your specific street.
We prepare and submit the permit package to the city, including hillside and fire-safety documentation where required. HOA approval is the homeowner’s signature, but we supply the drawings and specs your board will ask for. We don’t charge for that extra documentation.
No. The written price we give you before work begins is the price. If site conditions force a scope change, we put the new number in writing and you approve it before we proceed. There are no silent change orders on a Sutton project.
If you’re weighing an ADU, addition, or room addition in West Hollywood, call (472) 248-8213 to schedule your free estimate. We’ll bring a written price and a clear picture of what’s buildable on your lot.
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
"Insulated the walls and ceiling properly. It stays comfortable even in July."
- Tamika W."They handled the drawings and the permit paperwork for us. All I had to do was pick the finishes."
- Rosa M."Every crew member was vetted and carried a badge, which matters when they are around your family for months. Tidy site every day."
- Daniel F.
