A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateADU Company in Hidden Hills, CA
Adding an ADU in Hidden Hills comes with a different set of realities than most Los Angeles County jobs: gated streets, large equestrian-zoned lots, strict hillside setback rules, and a city that expects every structure to look like it has always been there. Benson ADU Builders handles those constraints as standard practice, not surprises. We put a written price in front of you before any work starts, and we build with prefab brands like Abodu and Cover so you are not waiting on a framing crew for six months. Call (903) 568-7222 to talk through your lot and what is actually possible.
Why Hidden Hills Homes Are Different
Hidden Hills is a gated community in the western San Fernando Valley, and that changes the job from day one. Access is controlled, so material deliveries and crew arrivals have to be coordinated with the community’s entry procedures. Lots tend to be large – often an acre or more – with generous side and rear yards that can accommodate a detached unit, but the city’s community design standards mean the exterior has to match the neighborhood’s equestrian and ranch character. That is a real review step, not a suggestion.
The terrain matters too. Many parcels slope, which means foundation and drainage work is rarely a simple flat slab. We plan for that from the first site visit, and our written quote includes those site conditions instead of treating them as a “discovered issue” once excavation begins. If you are on a hillside lot near Round Meadow Road or Jed Smith Road, expect the price to reflect proper retaining and grading work – not a change order later.
Our Main Hidden Hills Services
Most Hidden Hills homeowners call us about three things: building a new ADU, expanding the main house, or adding a single room. Each has its own Hidden Hills page below.
ADU Builders in Hidden Hills
A detached ADU on a Hidden Hills lot usually means a prefab or panelized build – Dvele and Abodu units work well here because the factory build reduces on-site time inside a gated community. We handle the permitting, site prep, foundation, utility connections, and the community design review. You get a unit that is faster to lock up and cleaner to build than a traditional site-built frame. See the full breakdown on our ADU Builders in Hidden Hills page.
Home Addition Contractor in Hidden Hills
A home addition in Hidden Hills is a different animal than adding square footage in a typical LA neighborhood. You are working with larger setbacks, design-review standards, and often a house that already has custom finishes on one side of the wall you are extending. We plan additions so the new roofline ties in cleanly and the foundation ties into the existing slope without creating drainage problems. Read more on our Home Addition Contractor in Hidden Hills page.
Room Addition Contractor in Hidden Hills
When you only need one more room – an office, a bedroom, a home gym – a room addition keeps the scope tight and the disruption lower. In Hidden Hills it still means the same design review and the same terrain considerations, but the timeline is shorter and the budget is smaller. We give you a fixed written price before demo, and the 365-Day Done Right Promise applies the same as on a full ADU. Details are on our Room Addition Contractor in Hidden Hills 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 Hidden Hills
We build with and source from Abodu, Cover, and Dvele prefab systems, plus James Hardie cladding when the design calls for a board-and-batten or smooth panel look. We keep a short list of approved vendors for Hidden Hills so material lead times are predictable. See what we work with on our brands page.
Pricing for ADU Company in Hidden Hills, CA
| Service | Typical range in Hidden Hills |
|---|---|
| Prefab ADU (studio, 1 bath) | $180,000 – $260,000 |
| Prefab ADU (1 bed, 1 bath) | $220,000 – $320,000 |
| Prefab ADU (2 bed, 1 bath) | $280,000 – $400,000 |
| Site-built ADU (studio) | $200,000 – $290,000 |
| Site-built ADU (1 bed) | $250,000 – $360,000 |
| Site-built ADU (2 bed) | $320,000 – $460,000 |
| Garage conversion ADU | $130,000 – $210,000 |
| Home addition (primary suite) | $160,000 – $240,000 |
| Room addition (single room) | $90,000 – $150,000 |
Prices in Hidden Hills run toward the upper end of those ranges when the lot slopes, when the design review requires a specific exterior treatment, or when utility runs are long. Your written quote includes those conditions up front – we do not hand you a number and then bill for “unforeseen” site work once the shovel is in the ground.
Neighborhoods We Serve in Hidden Hills
We work across all of Hidden Hills, including the streets off Long Valley Road, Round Meadow Road, and Jed Smith Road, as well as the custom lots in the eastern and northern sections of the community. Our crews are familiar with the gate procedures and plan their arrival windows around them.
- Long Valley Road area
- Round Meadow Road area
- Jed Smith Road area
- Hidden Hills East
- Northern custom-lot section
Service Area – Cities Near Hidden Hills
While Benson ADU Builders crews serve Hidden Hills directly, our scheduling and dispatch are coordinated from the brand’s Los Angeles office. We also take on projects across the broader metro area, including Los Angeles, CA, Long Beach, CA, Anaheim, CA, and Riverside, CA. If your property sits on the edge of Hidden Hills or you are weighing a job in a neighboring city, call (903) 568-7222 and we will tell you straight whether we can handle it.
Serving Hidden Hills, CA - Our Local Coverage Area
We’re based in the Hidden 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 Company in Hidden Hills
After your written quote is approved, we typically schedule a site visit within a week and begin the design and permit package right after. The gated access in Hidden Hills adds a small coordination step for our crews and deliveries, but it does not change the start date once the permit package is submitted. Call (903) 568-7222 for a real timeline on your lot.
Yes. Hidden Hills has community design standards, and your project will need architectural review because the city is a gated community that enforces its equestrian and ranch character. We include the design review package in our scope and handle that submittal for you, so you are not chasing down paperwork.
No. The written price we give you before work starts is the price, unless you request a change to the scope. Site conditions like slope, drainage, and utility runs are reviewed before we quote, not after we start digging. Call (903) 568-7222 and we will send over a line-item written quote – free, no site visit required to start the conversation.
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 Hidden Hills 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.
