ADU Builder & Home Additions in Bel Air, CA
Source: https://www.remodelyourvibe.com/services/adus-additions/bel-air
Last modified: 2026-09-24T00:00:00.000Z
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Image: Detached backyard ADU with wood siding and black-framed glass doors at dusk
- Bel Air
Design · Permit · Build
ADUs & Additions in Bel Air
Detached ADUs, garage conversions and additions, from plans to move-in.
Book a Consultation Call 818-300-2393
Built for Bel Air Homes
The grading budget is a genuine design constraint here. The hillside district covering this community plan area caps total cut and fill per site, so a pool, a motor court and a level lawn all compete for the same cubic yards. Roads are narrow and winding, which limits truck size and dictates sequencing for concrete, steel and crane days.
Slope work usually starts with caissons and shoring long before anything looks like a backyard.
Large hillside and canyon parcels with steep slopes, limited flat buildable pad, long private driveways and substantial existing retaining infrastructure.
We are a design-build team, which means the people who draw your project are the people who build it. Design, engineering, permits and construction run through one project manager and our own crews, so nothing gets lost in a handoff between a salesperson and a subcontractor. We are licensed, bonded and insured, CSLB license #1119054 .
Permits in Bel Air: LADBS issues the building, grading and pool permits, as this is City of Los Angeles territory rather than a separate municipality. The Bel Air-Beverly Crest community plan area was added to the Hillside Construction Regulation supplemental use district effective March 22, 2017 (Ordinance No. 184,828), which caps grading at 6,000 cubic yards per site, adds hauling and construction activity standards, and limits exterior construction to weekdays between 8:00 a.m. and 6:00 p.m., with interior work also allowed on Saturdays during those hours.
Hauling is restricted to weekdays between 9:00 a.m. and 3:00 p.m. The Baseline Hillside Ordinance (No. 184,802) separately governs height, floor area and slope-based limits, and import or export of more than 1,000 cubic yards in a hillside grading area requires a haul route hearing before the Board of Building and Safety Commissioners.
Parcels along the Mulholland corridor also fall under the Mulholland Scenic Parkway Specific Plan, and private homeowner associations in gated tracts can add their own architectural review on top of city review.
Permit details checked September 2026 against LADBS and LA City Planning . Rules change, so we confirm them again for your parcel.
What We Build
- Grading quantity and haul route strategy
- Caisson, pile and shoring pool structures
- HOA architectural review submittals
- Detached ADUs, ground-up
- Garage conversions to living space
- Junior ADUs within the main house
- Room additions and bump-outs
- Second-story additions
- Full kitchens and bathrooms in the ADU
- Separate utility metering where required
- Private entries, patios and landscaping
- Plans, engineering and city submittals
- Title 24 energy compliance
Local Conditions
What to Know in Bel Air
These local conditions change the scope, the schedule and the budget.
01
A per-site grading cap means cut and fill for a pool, a motor court and a level lawn all draw from the same limited quantity, so earthwork is designed before aesthetics are settled.
02
Slope construction typically begins with caissons, tiebacks and shoring, and pool shells on descending lots often sit on structural piles rather than native grade.
03
Narrow, winding roads with tight radii limit truck and crane size, so concrete pours and steel deliveries are sequenced around access rather than convenience.
04
Excavation frequently reaches shale and bedrock at shallow depth, which slows digging and increases export volume against a fixed grading allowance.
Areas we serve in Bel Air:East Gate Bel AirWest Gate Bel AirUpper Bel AirStone CanyonCasiano
Investment
What It Costs in Bel Air
Real Southern California price ranges, not teaser numbers.
Detached ADU
$150,000 to $400,000+
What moves it: square footage, finish level, utility runs, and site access; garage conversions typically run well below a ground-up detached build
Garage conversion ADU
$80,000 to $180,000
What moves it: whether the existing slab and framing meet current code, how far utilities have to run, and the finish level of the kitchen and bathroom
Plans, drawings and permit management
$4,500 to $25,000+
What moves it: project type and size, whether structural engineering, Title 24 or a soils report is required, and how many jurisdictions or review bodies are involved
Your lot, access and finishes set the price. We walk the site, then show you where every dollar goes.
Get a line-item price for your Bel Air property
The Process
How We Work in Bel Air
01
Feasibility
We check lot size, setbacks, utilities and access to confirm what your property will actually support.
02
Design & 3D
Layout, elevations and finishes, modeled in 3D so you approve the unit before submittal.
03
Plans & Permits
We prepare the full drawing set, handle engineering and Title 24, and manage the city submittal and corrections. In Bel Air that submittal goes to Los Angeles Department of Building and Safety (LADBS).
04
Foundation & Framing
Site prep, foundation, framing and dry-in by our own crews.
05
Systems & Finishes
Electrical, plumbing, HVAC, insulation, then kitchen, bath and interior finishes.
06
Final Inspection
We pass final inspection, walk the unit with you and hand over the keys.
Questions
What Bel Air Homeowners Ask
Who issues the permits for this work in Bel Air?
Los Angeles Department of Building and Safety (LADBS). LADBS issues the building, grading and pool permits, as this is City of Los Angeles territory rather than a separate municipality. The Bel Air-Beverly Crest community plan area was added to the Hillside Construction Regulation supplemental use district effective March 22, 2017 (Ordinance No. 184,828), which caps grading at 6,000 cubic yards per site, adds hauling and construction activity standards, and limits exterior construction to weekdays between 8:00 a.m. and 6:00 p.m., with interior work also allowed on Saturdays during those hours.
Hauling is restricted to weekdays between 9:00 a.m. and 3:00 p.m. The Baseline Hillside Ordinance (No. 184,802) separately governs height, floor area and slope-based limits, and import or export of more than 1,000 cubic yards in a hillside grading area requires a haul route hearing before the Board of Building and Safety Commissioners.
Parcels along the Mulholland corridor also fall under the Mulholland Scenic Parkway Specific Plan, and private homeowner associations in gated tracts can add their own architectural review on top of city review. We prepare the drawings, make the submittal and handle plan-check corrections ourselves, so you are not the one chasing plan check.
What makes building in Bel Air different?
Large hillside and canyon parcels with steep slopes, limited flat buildable pad, long private driveways and substantial existing retaining infrastructure. One local condition that shapes the work: A per-site grading cap means cut and fill for a pool, a motor court and a level lawn all draw from the same limited quantity, so earthwork is designed before aesthetics are settled.
Which parts of Bel Air do you work in?
All of it, including East Gate Bel Air, West Gate Bel Air, Upper Bel Air and Stone Canyon. Our crews run every job out of our Cahuenga Pass base in Los Angeles, with our own people on site.
What does an ADU or addition cost in Bel Air?
Detached ADU: generally $150,000 to $400,000+ across Southern California. What moves it is square footage, finish level, utility runs, and site access; garage conversions typically run well below a ground-up detached build. We give line-item pricing after seeing the site rather than quoting a number over the phone.
How long does an ADU take start to finish?
Plan a realistic year. Design and engineering typically take one to three months, city plan check and corrections add several more, and construction usually runs four to eight months depending on size and site access.
Is a garage conversion cheaper than a detached ADU?
Usually yes, and often substantially, because the foundation, walls and roof already exist. The trade-offs are that you lose the garage, and older slabs and framing sometimes need upgrading to meet current code.
Can I rent the ADU out?
California ADU law is designed to allow long-term rental, and an ADU is one of the few ways to add rentable square footage to a single-family lot. Short-term rental rules vary by city, so confirm your local ordinance before counting on that income.
Do you handle the permits?
Yes. Plans, engineering, Title 24 and the city submittal are all handled in-house, including responding to plan-check corrections. That is a service we sell on its own, so it is not something we hand off.
More Services in Bel Air
Pool & Spa Remodeling in Bel Air Backyard & Outdoor Living in Bel Air Kitchen, Bath & Interior Remodeling in Bel Air Plans, Permits & Design in Bel Air Everything we build in Bel Air
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Planning Guides
Before You Build in Bel Air
Costs, materials and process notes from our own projects.
ADU Cost Breakdown by Size in Los Angeles A detached ADU in Los Angeles runs $150,000 to $400,000-plus. Here is the real cost broken down by unit size, with the soft costs, utility work and finish decisions that move the number. Read guide Garage Conversion to ADU: The Step-by-Step Build A garage conversion runs $80,000 to $180,000 in Southern California. Here is the real sequence, from slab testing and plan check to the raised floor, the mini-split and final sign-off. Read guide ADU Rental Income Math in the San Fernando Valley A one-bedroom ADU in the San Fernando Valley rents for roughly $2,100 to $2,900 a month. Here is the honest arithmetic on payback, carrying costs and what the unit adds to the property. Read guide Second Story Addition vs Building Out: Which Costs Less Building out runs $350 to $500 per square foot. Going up runs $450 to $700. Here is when the cheaper option is actually the wrong one, and what drives each number. Read guide
Planning an ADU in Bel Air?
Sit down with your project manager and get an accurate estimate. We call you back within one business day.
Book a Consultation 818-300-2393
Licensed, bonded & insured · CSLB license #1119054
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