A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateADU Company in Hollywood, CA
Adding an ADU or home addition in Hollywood, CA comes with a specific set of terrain, lot-shape, and permitting realities that flatland suburbs never face. Homes here sit on hillside lots with retaining walls, narrow access, and older foundations that don’t always play nice with new construction. Benson ADU Builders plans for those conditions from the first site visit, and every Hollywood project starts with a written price before any work begins. Call (903) 568-7222 to schedule your free estimate.
Why Hollywood Homes Are Different
Hollywood housing stock runs older and tighter than most of Los Angeles. A large share of single-family homes were built between 1920 and 1960, which means foundation types vary wildly even on the same block. Some sit on raised perimeter foundations, others on slabs, and hillside lots often combine both. That matters because an ADU foundation detail that works on one Hollywood lot can fail on the one next door. We check soil, slope, and drainage before pricing anything, so the number we hand you is the number we build to.
Hillside work also changes how we stage and sequence a job. A backyard ADU on a downslope lot in the Hollywood Hills may need pier-and-grade-beam support instead of a standard slab, and access constraints often mean hand-carrying materials rather than dropping them with a crane. That’s not a surprise we discover mid-project; it’s line item we write into the quote on day one. The Hollywood climate works in your favor: dry summers allow continuous exterior work from June through October, which is why we book heavier on foundations and framing then and shift to interior finishes when the rain arrives.
Our Main Hollywood Services
Most Hollywood homeowners call us about one of three projects: a detached or attached ADU in the backyard, a ground-up home addition that expands the main living footprint, or a room addition that repurposes existing space. Each has its own dedicated Hollywood page with pricing, process, and local details.
ADU Builders in Hollywood
ADU work in Hollywood means understanding the city’s hillside overlay zones, which often restrict height, setback, and lot coverage beyond the state defaults. That’s the local angle that separates us from a contractor who only builds on flat, rectangular lots. We design around those rules and price the project honestly up front, rather than discovering a slope adjustment midway through and handing you a change order. Learn how we approach backyard units, garage conversions, and JADUs on our ADU Builders in Hollywood page.
Home Addition Contractor in Hollywood
Adding square footage to a Hollywood home usually means tying a new foundation into an older one, and doing it right requires more than a handshake. We match new framing to existing rooflines, upgrade service panels when the added load demands it, and pull every permit before the first saw fires. The goal is a room that looks like it was always there, not a box bolted onto the back. See the full scope and process on our Home Addition Contractor in Hollywood page.
Room Addition Contractor in Hollywood
A room addition in Hollywood often converts a garage, attic, or underused back porch into livable space without expanding the home’s footprint. That can be faster and less expensive than a full addition, but the existing structure has to carry the new load safely. We inspect framing, electrical, and rooflines before pricing, and every room addition comes with the same written price and 365-Day Done Right Promise as a full build. Get the details on our Room Addition Contractor in Hollywood page.
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 Hollywood
Hollywood homeowners often ask about prefab ADU systems, and we build with a few brands we trust enough to put our guarantee behind: Cover, Dvele, and Boxabl. Each offers a different balance of speed, finish level, and site flexibility. Read more on our brands page for the full rundown.
Pricing for ADU Company in Hollywood, CA
| Service | Typical range in Hollywood |
|---|---|
| Detached ADU (site-built, up to 749 sq ft) | $175,000 – $285,000 |
| Detached ADU (site-built, 750 – 1,000 sq ft) | $285,000 – $420,000 |
| Garage conversion ADU (up to 400 sq ft) | $90,000 – $150,000 |
| JADU (attached, up to 500 sq ft) | $70,000 – $120,000 |
| Prefab ADU (Boxabl, Cover, or similar) | $150,000 – $260,000 installed |
| Home addition (ground-up, 400 – 800 sq ft) | $160,000 – $380,000 |
| Room addition (garage/attic conversion) | $80,000 – $180,000 |
| Kitchen extension (120 – 200 sq ft) | $90,000 – $160,000 |
| Primary bedroom suite addition | $120,000 – $220,000 |
| ADU foundation and site prep only | $18,000 – $45,000 |
Hillside Hollywood lots push costs upward when the job demands special foundations, retaining walls, or hand-carried materials. Flat-lot homes in the central corridor of Hollywood generally fall toward the lower end of each range. Whatever the site conditions, your written price includes everything we find during the estimate, and that number does not move once work starts.
Neighborhoods We Serve in Hollywood
Our crews work throughout Hollywood and the immediately surrounding area. Response time for a first site visit is typically within one week of your call, and we schedule around your availability rather than the other way around.
- Hollywood Hills
- Hollywood Dell
- Beachwood Canyon
- Mid-City West
- East Hollywood
Service Area – Cities Near Hollywood
While most of our work concentrates in Hollywood, we also take ADU and addition projects in nearby cities across the Los Angeles basin. If you’re outside our Hollywood footprint, we can often help in Los Angeles, CA, Long Beach, CA, Anaheim, CA, or Riverside, CA.
Serving Hollywood, CA - Our Local Coverage Area
We’re based in the 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 Hollywood
Most Hollywood ADU projects start within three to six weeks of a signed contract, depending on permitting and site prep. Your written estimate includes a schedule, so you’ll know exact dates before any money changes hands. Call (903) 568-7222 to get the ball rolling.
Yes. We pull all required Hollywood permits, and if your property falls under an HOA, we prepare the submittal package and handle the back-and-forth. HOAs can add review time, but we’ll tell you upfront what your specific property requires, and that timeline is baked into your quote.
No. Your written price covers everything we find in the estimate and site inspection, including hillside conditions, access limitations, and material delivery. The only way a price changes is if you change the scope. That’s the whole point of a written price before work starts, and it’s in every contract we sign.
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 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.
