
ADUs & Additions in Sherman Oaks
Detached ADUs, garage conversions and additions, from plans to move-in.
Built for Sherman Oaks Homes
Sherman Oaks rewards planning. North of the boulevard the lots are flat and generous, and the temptation is to fill them; the better outcome is usually fewer, larger zones with real circulation between them. South of the boulevard the hillside parcels come with view potential that is worth designing around, and structural work that has to be resolved before anything decorative happens.
Established mid-century homes on generous flat lots north of the boulevard, and steeper view parcels to the south where structural work leads the schedule.
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 Sherman Oaks: Private pools in the City of Los Angeles are permitted through a Combined Building-Mechanical permit, while pools serving more than two dwelling units need separate building, electrical, plumbing and mechanical permits. Using a City of Los Angeles standard plan on file with LADBS reduces plan check time.
South-of-the-boulevard hillside parcels are in the Hillside Area. There the Baseline Hillside Ordinance caps grading and import/export quantities, and LAMC 12.21 C.8 separately limits retaining-wall height. A pool there also needs its own LADBS grading permit, and much of the area is a Very High Fire Hazard Severity Zone.
Permit details checked September 2026 against LADBS and LA City Clerk. Rules change, so we confirm them again for your parcel.
What We Build
- Retaining and slope drainage
- Mature-landscape protection during excavation
- 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 Sherman Oaks
These local conditions change the scope, the schedule and the budget.
Flat lots north of Ventura Boulevard suit full backyard builds with pool, kitchen and lawn in one phase
Hillside parcels to the south typically require retaining walls and slope stabilization first
Mature landscaping and established root systems often dictate excavation routing
Investment
What It Costs in Sherman Oaks
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 Sherman Oaks propertyThe Process
How We Work in Sherman Oaks
Feasibility
We check lot size, setbacks, utilities and access to confirm what your property will actually support.
Design & 3D
Layout, elevations and finishes, modeled in 3D so you approve the unit before submittal.
Plans & Permits
We prepare the full drawing set, handle engineering and Title 24, and manage the city submittal and corrections. In Sherman Oaks that submittal goes to Los Angeles Department of Building and Safety (LADBS).
Foundation & Framing
Site prep, foundation, framing and dry-in by our own crews.
Systems & Finishes
Electrical, plumbing, HVAC, insulation, then kitchen, bath and interior finishes.
Final Inspection
We pass final inspection, walk the unit with you and hand over the keys.
Questions
What Sherman Oaks Homeowners Ask
Who issues the permits for this work in Sherman Oaks?
Los Angeles Department of Building and Safety (LADBS). Private pools in the City of Los Angeles are permitted through a Combined Building-Mechanical permit, while pools serving more than two dwelling units need separate building, electrical, plumbing and mechanical permits.
Using a City of Los Angeles standard plan on file with LADBS reduces plan check time. South-of-the-boulevard hillside parcels are in the Hillside Area. There the Baseline Hillside Ordinance caps grading and import/export quantities, and LAMC 12.21 C.8 separately limits retaining-wall height.
A pool there also needs its own LADBS grading permit, and much of the area is a Very High Fire Hazard Severity Zone. 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 Sherman Oaks different?
Established mid-century homes on generous flat lots north of the boulevard, and steeper view parcels to the south where structural work leads the schedule. One local condition that shapes the work: Flat lots north of Ventura Boulevard suit full backyard builds with pool, kitchen and lawn in one phase.
Which parts of Sherman Oaks do you work in?
All of it, including Chandler Estates and Magnolia Woods. 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 Sherman Oaks?
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 Sherman Oaks
Planning Guides
Before You Build in Sherman Oaks
Costs, materials and process notes from our own projects.
Pool Remodel Cost in Sherman Oaks: Plaster to Pipes
Pool remodels in Sherman Oaks run $18,000 to $55,000 depending on scope. Here is what each element costs, and why hillside pools above Ventura Boulevard price higher than the flats.
Read guideSherman Oaks Outdoor Kitchens: Costs & Permits
Sherman Oaks homeowners are adding outdoor kitchens to extend living space. Here's what you need to know about design, costs, and local requirements.
Read guideADU 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 guideGarage 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 guidePlanning an ADU in Sherman Oaks?
Sit down with your project manager and get an accurate estimate. We call you back within one business day.
Licensed, bonded & insured · CSLB license #1119054