ADU Builder & Home Additions in Tarzana, CA
Source: https://www.remodelyourvibe.com/services/adus-additions/tarzana
Last modified: 2026-09-24T00:00:00.000Z
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Image: Open-plan living room and kitchen with polished concrete floors
- Tarzana
Design · Permit · Build
ADUs & Additions in Tarzana
Detached ADUs, garage conversions and additions, from plans to move-in.
Book a Consultation Call 818-300-2393
Built for Tarzana Homes
Tarzana's hillside lots south of Ventura Boulevard tend to be wide and private, which is a genuine advantage: you can put a pool, a covered kitchen and a lawn on the same property without any of them feeling crowded against a fence. The most common thing we correct here is electrical service that was sized for a 1950s or 1960s house and is now being asked to run pool equipment, landscape lighting and an outdoor kitchen.
Standard-size flat lots north of Ventura Boulevard, and larger, private hillside lots to the south (typically about 15,000 to 21,000 square feet) with room for real outdoor rooms rather than a pool squeezed against a fence.
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 Tarzana: 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.
Hillside parcels south of Ventura Boulevard trigger Baseline Hillside Ordinance grading review.
Permit details checked September 2026 against LADBS . Rules change, so we confirm them again for your parcel.
What We Build
- Electrical service and panel upgrades
- Wide-lot zoning for pool, kitchen and lawn
- 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 Tarzana
These local conditions change the scope, the schedule and the budget.
01
Flat lots north of the boulevard are mostly standard valley size, so pool and outdoor-kitchen layouts need careful planning; the wider lots are mainly on the hillside south of Ventura Boulevard
02
Hillside lots to the south need slope analysis before pool siting is finalized
03
Older properties often carry undersized electrical service that needs upgrading for pool equipment and outdoor lighting
Areas we serve in Tarzana:Braemar
Investment
What It Costs in Tarzana
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 Tarzana property
The Process
How We Work in Tarzana
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 Tarzana 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 Tarzana Homeowners Ask
Who issues the permits for this work in Tarzana?
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. Hillside parcels south of Ventura Boulevard trigger Baseline Hillside Ordinance grading 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 Tarzana different?
Standard-size flat lots north of Ventura Boulevard, and larger, private hillside lots to the south (typically about 15,000 to 21,000 square feet) with room for real outdoor rooms rather than a pool squeezed against a fence. One local condition that shapes the work: Flat lots north of the boulevard are mostly standard valley size, so pool and outdoor-kitchen layouts need careful planning; the wider lots are mainly on the hillside south of Ventura Boulevard.
Which parts of Tarzana do you work in?
All of it, including Braemar. 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 Tarzana?
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 Tarzana
Pool & Spa Remodeling in Tarzana Backyard & Outdoor Living in Tarzana Kitchen, Bath & Interior Remodeling in Tarzana Plans, Permits & Design in Tarzana Everything we build in Tarzana
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Planning Guides
Before You Build in Tarzana
Costs, materials and process notes from our own projects.
Tarzana Outdoor Living: Costs by Lot Type Tarzana backyards run hot and deep. A working outdoor living build here (shade, hardscape, kitchen, lighting) typically lands between $85,000 and $220,000, and the ground drives most of the number. Read guide 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
Planning an ADU in Tarzana?
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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