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 Beverly Hills
Building an ADU in Beverly Hills means dealing with a city that runs its own permitting show, not LA County’s. A detached unit behind a home near Roxbury Park or in the flats off South Bedford Drive has to clear Beverly Hills plan check under the city’s own municipal ADU ordinance, and that changes setback, height, and foundation work in ways a county-standard plan set misses. We know because we do this work here regularly. Call us at (903) 568-7222 and we’ll walk the site, look at your lot, and give you a written price before any work starts. No verbal ballpark that shifts a month later.
Why Benson ADU Builders Is Beverly Hills’s Preferred ADU Builders Company
Homeowners in Beverly Hills call us because we put the price and the plan in writing from the first conversation. Troy Eastman leads the team, and he runs every estimate the same way: we walk the lot, check the slope and rear-yard setback, note which neighborhood you’re in, and then we quote against Beverly Hills code, not a generic Southern California template. That matters more in Beverly Hills than almost anywhere else in the county.
Our reputation around Beverly Hills comes from projects where the number we quoted held through plan check, inspection, and move-in. When the city’s plan check comes back with conditions, as it often does here, we already accounted for the likely rewrites. When the grading review on a hillside parcel near Coldwater Canyon changes footing depth, that was in the written scope. Homeowners tell us the difference is that our crews show up when we say, in uniform, and the person answering the phone actually knows your project.
Every technician on a Beverly Hills job is background-checked and uniformed. The office line is answered by a live person, 24/7, because ADU questions don’t only come up during business hours. And every project carries our 365-Day Done Right Promise and The Relay Visibility Guarantee: written price before work starts, a written guarantee on the project, and a free second visit if any covered repair fails within the year.
ADU Construction in Beverly Hills
ADU Construction in Beverly Hills is the full build-out of an accessory dwelling unit on your lot, whether that’s a detached unit in a rear yard off South Maple Drive, a garage conversion on a property near North Canon Drive, or a site-built unit designed from scratch for a hillside parcel in the 90210 ZIP. It covers foundation, framing, plumbing, electrical, HVAC, drywall, cladding, roofing, and interior finish, all sequenced through Beverly Hills’ own municipal plan check and inspection milestones. A typical ADU Construction project in Beverly Hills runs $280,000 to $550,000 for a detached unit, depending on unit size, lot conditions, and finish level. Garage conversions usually land between $150,000 and $260,000.
Site-Built vs Prefab Panel
Site-built means the unit is framed on your property, piece by piece. It gives you full control over footprint and layout, which helps on the irregular lots common in Beverly Hills. Prefab panel systems from brands like Cover or Mighty Buildings arrive as factory-made wall and floor components that get assembled on-site, often with less framing waste and faster enclosure. Both routes work in Beverly Hills, but the city’s plan check cares about the calcs and details either way.
Plan Check and Permitting Reality
Here’s the part most contractors don’t tell you: Beverly Hills reviews your ADU plans against its own ordinance, and that review can reject details that pass LA County every day. Height limits, rear-yard setbacks, and lot-coverage rules differ from the county standard. We build those local requirements into the quote from the start, so you’re not paying change-order money three months in.
Detached ADU in Beverly Hills
A Detached ADU in Beverly Hills is a separate living unit built in the rear or side yard of your property, with its own entrance, kitchen, bathroom, and utility connections. On flats lots near Beverly Drive or Rexford Drive, a detached unit usually runs $300,000 to $550,000, with the higher end reflecting larger footprints and higher-spec interiors. On hillside parcels above Sunset Boulevard, where the city requires geotechnical and grading review, expect the foundation and site work to add meaningfully to that range.
The family we built for in the flats just south of Wilshire Boulevard near South Rexford Drive wanted a long-term home for a parent, not a short-term rental, which aligned with what Beverly Hills actually permits. We used a James Hardie-clad detached unit with a separate utility stub and cleared the Beverly Hills plan check and inspection sequence after revising the setback and height sheets to the city’s own code. The owner had been quoted a lower number by an out-of-area builder who assumed LA County rules applied. They didn’t, and that quote wouldn’t have held.
Lot Slope and Foundation Cost
Beverly Hills has real topography. A flat parcel in the 90211 flats is a different foundation job than a sloped lot off Coldwater Canyon or a hillside parcel in the 90210 hills. When grading review applies, footing depth and retaining work change, and that changes the price. We price that work from the start, in writing.
Clients Who Choose Detached
Most detached ADU clients in Beverly Hills fall into two groups: homeowners creating a long-term home for a parent or adult child, and homeowners adding a rental unit they’ll lease for a year or more at a time. Beverly Hills bans short-term rentals of ADUs, so the Airbnb play isn’t on the table here. That shapes how we design the unit: long-term livability, quiet insulation, and separate utility metering.
Trusted Brands We Service in Beverly Hills
We build with brands Beverly Hills homeowners can research before they ever sign a contract. Abodu and Cover give us prefab panel paths with calibrated enclosures. Dvele gives us a higher-end panelized build with design software that shows the unit before fabrication. For cladding, we specify James Hardie products regularly, particularly on hillside units where moisture and sun exposure matter. Because we order directly through these brand channels, Beverly Hills customers get accurate lead times and a written price that accounts for what those systems actually cost to install in this city. No surprises at the door, and no mystery third-party upcharge.
Common ADU Builders Problems We See in Beverly Hills Homes
- County-standard plans rejected at Beverly Hills plan check. Setback and height rules in Beverly Hills differ from LA County code, and plans drafted for the county get bounced. We quote against the city’s ordinance from day one.
- Hillside lots triggering geotechnical review too late. A sloped parcel off Coldwater Canyon or in the hills above Sunset needs grading and soil review that changes footing and foundation scope. Out-of-area builders often miss it, then hit the owner with a change order.
- Fixed prices that fall apart after permit conditions. When Beverly Hills issues the ADU permit with conditions, scope changes. If the original quote didn’t account for that, the price moves. Ours is written to hold.
- Short-term rental plans that violate city code. Beverly Hills bars short-term rental of ADUs. Owners who planned to Airbnb the unit end up rethinking layout and financing after plan check. We talk through that before design starts so you’re not designing for a use the city won’t allow.
Pricing for ADU Builders in Beverly Hills, CA
Here are honest ranges for Beverly Hills, based on what we’ve quoted and built in this city. A garage conversion typically runs $150,000 to $260,000. A site-built detached ADU runs $300,000 to $550,000. Prefab panel systems from Cover or Mighty Buildings land in a similar band, usually $280,000 to $520,000 depending on unit size and sitework. Hillside lots above Sunset add foundation and grading cost that varies by slope, and that work gets priced after a site walk and soils review, not guessed at. The variables that move the number most: lot slope, rear-yard setback constraints, utility distance from the main house, and your interior finish choices. Call (903) 568-7222 and we’ll give you a written, line-item price before you sign anything. Estimates are free, and the number we put in writing is the number we build to.
We Also Serve Cities Near Beverly Hills
Our crews work throughout the Westside and adjacent areas. In addition to Beverly Hills, we take on ADU projects in West Hollywood, Studio City, Culver City, and Sherman Oaks. If you’re outside Beverly Hills proper, check our Beverly Hills coverage details or call us at (903) 568-7222 to confirm scheduling. Our ADU Builders team coordinates dispatch and scheduling from the brand’s Los Angeles office, with crews serving Beverly Hills locally.
Serving Beverly Hills, CA - Our Local Coverage Area
We’re based in the Beverly Hills 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 Beverly Hills
Yes. Beverly Hills enforces its own municipal ADU ordinance and building codes independently of Los Angeles County. A standard county-approved plan set often gets flagged at Beverly Hills plan check for setback, height, and lot-coverage differences. Our quotes account for the city’s code from the first site visit, so the plan we submit clears with fewer revisions and no surprise change orders. Call (903) 568-7222 if you want a written price that reflects Beverly Hills rules, not county defaults.
No. Beverly Hills bars short-term rentals of ADUs, so any plan to Airbnb the unit is off the table under city code. That changes how we design: long-term livability, separate utility metering, and layouts suited to a year-round tenant or a family member rather than rotating guests. If you’re weighing a rental unit, we can walk you through what the city actually permits before you spend a dollar on design. Estimates are free.
Three things move the number most in Beverly Hills: lot slope and grading requirements, rear-yard setback constraints, and the city’s plan check conditions. Hillside parcels need geotechnical review and often deeper footings. Tight rear yards change how the unit is placed and what foundation type works. And plan check conditions can add structural or drainage scope. We build all of that into the written price before work starts, so the number holds. Call (903) 568-7222 for a line-item quote on your specific lot.
Plan on 10 to 16 months for a detached ADU in Beverly Hills, from first call to move-in. That includes design, Beverly Hills plan check and revisions, permit issuance, site work, construction, and final inspections. Plan check here runs slower than unincorporated county areas because the city has its own review staff and ordinance. We give you a written schedule with milestone dates once the permit is issued, and we track progress in real time so you’re never guessing where the project stands.
ADU Construction means the unit is framed and built on-site, which gives you full layout flexibility and works well on Beverly Hills’ irregular lots. A prefab panel system from Cover or Mighty Buildings uses factory-built wall, floor, and ceiling panels assembled on your foundation, which can shorten the enclosure phase. Both paths still require Beverly Hills plan check, foundation work, utility connections, and interior finish. The right choice depends on your lot shape, access, and finish goals. Call (903) 568-7222 and we’ll price both routes in writing.
Call Benson ADU Builders at (903) 568-7222 to schedule your free Beverly Hills ADU estimate. We’ll walk your lot, review Beverly Hills’ own ADU ordinance against your property, and hand you a written price with a guaranteed scope before any work begins.
Written by Troy Eastman, Owner at Benson ADU Builders, serving Beverly Hills since 2006.
