A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateFast, Reliable ADU Builders Across Hollywood
If you’re weighing an ADU on your Hollywood property, the real question isn’t “can it be done” – it’s whether the builder you pick understands how Hollywood’s older lots, HPOZ overlays, and hillside rules change the path from plans to permit. Benson ADU Builders works across Hollywood every week, from the flats near Melrose and Vine to the hillside pockets above Franklin Avenue. We scope projects with a written price before work starts, so you know what a detached unit or garage conversion costs before you tap call. That’s the whole point: no verbal estimate that drifts. Call (903) 568-7222 to get yours.
Why Benson ADU Builders Is Hollywood’s Preferred ADU Contractors
Hollywood’s housing stock is older than almost anywhere else in Los Angeles. You’ll find 1920s bungalows, rear-yard garages tacked on during the studio boom, and hillside lots where a footing is a very different job than it is on flat ground. Our ADU Builders team checks for what actually changes a project here: whether the property sits in a Historic Preservation Overlay Zone, whether the existing accessory structure is even worth saving, and whether the electrical panel needs a separate meter before framing starts.
Every Benson project in Hollywood is run by Troy Eastman, who oversees scoping and pricing so the written number you get is the number you sign. We put the price in writing before any work starts, and our 365-Day Done Right Promise means if something isn’t right within a full year, we make it right. That guarantee is stamped on every Hollywood project, in writing, before demo day.
What Hollywood homeowners say most often is that they knew exactly who was on their property. Every technician is background-checked and arrives in uniform. And when you call, a live person answers – 24/7, every day of the year. No voicemail loop, no waiting until Monday.
ADU Plans in Hollywood
ADU plans in Hollywood are where a project either gets off the ground cleanly or stalls for months. Before a single footing is poured, your property’s zoning and overlay status determines which plan-review path applies. A detached ADU behind a 1926 bungalow near Whitley Avenue may need historic review if it’s in an HPOZ, while the same footprint two blocks south on a standard R1 lot sails through the City of Los Angeles plan-check without that step. That’s exactly why our scoping walk happens first, not after you’ve signed a vague contract.
What ADU plans cost in Hollywood ranges from $6,000 to $14,000 for full architectural and structural drawings, depending on scope. A simple JADU conversion sits at the low end. A new detached unit with hillside grading, retaining walls, or a sloped driveway access runs at the high end. That price includes the surveys, Title 24 energy calcs, and the plan-check resubmittals that Hollywood projects tend to need more often than newer suburban builds.
Site Survey and HPOZ or Hillside Review
We start every Hollywood ADU plan with a boundary survey and an overlay check against City of Los Angeles records. If the property is in a Historic Preservation Overlay Zone or a Hillside Area, the plans are routed through the additional review path before permits are issued. That’s not a surprise fee; it’s a step we flag in writing on day one.
Structural and Utility Design
Older Hollywood lots frequently carry detached garages that were fed by undersized lines from the main house. The plans need to address a separate meter or subpanel, which means we coordinate with LADWP early, not after framing is closed up. This is one of the most common reasons a Hollywood ADU plan gets sent back for corrections.
ADU Contractor in Hollywood
An ADU contractor in Hollywood has to do more than frame walls. The city’s mix of hillside soils, HPOZ rules, and 1920s-era accessory structures means the contractor who pulls your permits, runs your inspections, and coordinates your prefab delivery needs to know what the City of Los Angeles will and won’t accept. That’s the part of the job you can’t see from a website photo gallery.
For a full turnkey build, Hollywood ADU contractor costs typically run $280 to $420 per square foot for site-built construction. A studio ADU of 400 to 500 square feet lands between $140,000 and $210,000. A one- or two-bedroom detached unit of 750 to 1,000 square feet runs $220,000 to $410,000. Prefab and panelized shells from brands like Abodu or Cover can pull the lower end down, but site work, utility upgrades, and city fees stay regardless of the shell method.
Garage Conversion and Detached New Builds
We recently scoped an ADU project behind a 1926 bungalow near Whitley Avenue and Hollywood Boulevard. The plan was to convert the detached garage into a 500-square-foot unit with James Hardie cladding and a panelized shell. During the walk we found the slab had no vapor barrier and the electrical ran from the main house panel, which meant a new subpanel and meter before framing could close. We took it through City of Los Angeles plan check, demoed the non-historic garage walls to the slab, poured a reinforced foundation to current code, and coordinated the prefab drop with narrow driveway access off the boulevard. That project went smoother than most because we scoped in writing first, and nothing changed once work began.
Junior ADU Conversions
A JADU inside an existing Hollywood home is the fastest path to a rentable unit. The scope is usually a bedroom conversion with its own entrance and a small kitchenette. Plan check still applies, and in some Hollywood HPOZ districts the exterior door placement needs review before permit approval.
Trusted Brands We Service in Hollywood
Benson ADU Builders is authorized to build with the industry’s leading prefab and materials brands, so Hollywood homeowners get curated options instead of one take-it-or-leave-it product. We work with Abodu and Cover for panelized shells, and Dvele for high-performance prefab enclosures, and we specify James Hardie cladding on most exterior walls because it holds up to Hollywood’s hot, dry summers and the occasional heavy winter rain. If you want to research what’s going on your property before you commit, you can. The brand name is on the plans and on the quote.
Common ADU Builders Problems We See in Hollywood Homes
- HPOZ and Hillside Area surprises. A Hollywood property that looks like a simple garage conversion can trigger historic review or hillside grading review before permits are issued. We check the overlay status on the first walk, not after the contract is signed.
- Undersized electrical from the 1920s to 1940s. Detached Hollywood garages were often fed by thin lines from the main house. A separate meter or subpanel is common, and if it’s missed, the schedule slips while LADWP reviews the upgrade.
- Slab foundations with no vapor barrier. Older rear-yard structures in Hollywood were rarely built to current code. If the slab can’t be reused, the foundation scope changes and so does the price. We flag that in writing before plans are submitted.
- Narrow driveway and crane access. Many Hollywood lots sit off tight rear alleys or sloped driveways. Prefab delivery and crane day need to be planned against the actual access path, not assumed, or the crane shows up and can’t set the panels.
Pricing for ADU Builders in Hollywood, CA
A detached ADU in Hollywood runs $280 to $420 per square foot for site-built work. A studio of 400 square feet lands around $140,000 to $210,000. A two-bedroom unit of 800 to 1,000 square feet runs $260,000 to $410,000. A JADU conversion inside the house starts around $80,000 to $120,000. What moves the number in Hollywood specifically: hillside grading, HPOZ historic review, a new LADWP service line, and whether the existing garage slab is reusable. We give you a written line-item price before work starts, and we don’t change it once the job begins. Call (903) 568-7222 for a free estimate on your Hollywood property.
We Also Serve Cities Near Hollywood
While this page focuses on Hollywood, our crews also serve Los Angeles, Long Beach, Anaheim, and Riverside. If you’re just outside the neighborhood, check our ADU Builders in Hollywood page for details on service areas, or call us directly and we’ll confirm coverage for your address.
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 Builders in Hollywood
It depends on whether the property sits inside a Historic Preservation Overlay Zone. If it does, the City of Los Angeles routes your ADU plans through historic review before permits are issued, and that adds plan-check time. Outside an HPOZ, a standard rear-yard ADU on a Hollywood lot typically goes through the regular City plan-check path without that step. Call (903) 568-7222 and we’ll check your address against the overlay maps for free.
Usually yes, if the garage is non-historic and the slab and electrical can be brought up to current code. Many Hollywood garages built in the 1920s to 1940s have no vapor barrier and were fed by undersized lines from the main house, so expect a foundation and electrical scope in addition to the conversion itself. We’ll inspect the structure and give you a written price before plans are submitted.
A detached ADU in Hollywood requires City of Los Angeles building permits, a plan check through LADBS, and usually LADWP review for a new service line or meter. If the property is in an HPOZ or Hillside Area, those reviews are added on top. We pull the permits and run the inspections on every Hollywood project, so you never sit on a hold notice without knowing why.
A garage conversion in Hollywood typically takes 10 to 14 months from plans to final inspection. A new detached unit runs 12 to 18 months. Prefab or panelized shells from brands like Abodu or Mighty Buildings can shorten framing, but plan check and LADWP coordination follow the city’s calendar, not ours. We’ll give you a written schedule up front and update it every week.
Yes, and we’re authorized to build with Abodu, Cover, Dvele, and Mighty Buildings, among others. The caveat in Hollywood is access. A narrow driveway off a boulevard or a tight rear alley can limit what gets delivered and where the crane sets up. We coordinate the delivery route and crane day on the plans, so the prefab method doesn’t become a site problem. Call (903) 568-7222 for an exact quote – estimates are free.
If you’re ready to know what your Hollywood ADU actually costs, call (903) 568-7222 to schedule your free estimate. We’ll walk the property, check the overlays, and put the price in writing before you sign anything.
Written by Troy Eastman, Owner at Benson ADU Builders, serving Hollywood with transparent ADU pricing and written guarantees.
