







A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateADU Company in Sherman Oaks, CA
Sherman Oaks sits in a strange middle ground for ADU work. The flat, gridded streets south of Ventura Boulevard were built out in the 1940s through 1960s, which means big lots, detached garages with alley access, and straightforward access for a crew and a dumpster. The hillside lots north of Ventura tell a different story: tighter setbacks, slope work, and drainage details that change the design before the first stake goes in the ground. Fielding ADU Builders handles both, and we put the price in writing before any work starts. Call (559) 254-0116 and you will talk to a live person, not a voicemail.
Why Sherman Oaks Homes Are Different

Most of what we see south of Ventura Boulevard is a flat 6,000 to 7,500 square foot lot with a 1950s or early 1960s ranch house. That geometry is generous for an ADU: the state allows a detached unit up to 1,200 square feet on lots that size, and a rear alley means we can bring in equipment and materials without tearing up the front yard. Detached garages from that era are also prime conversion candidates because they are already permitted structures with a foundation and a roof, which trims cost and schedule.
North of Ventura, the terrain changes quickly. Hillside lots are often smaller, some are on private roads, and many sit in zones with stricter slope and drainage requirements. On those sites, an ADU is more likely to be attached to the main house or built as a junior unit rather than a freestanding structure, simply because the grading and foundation work for a detached build gets expensive fast. The summer heat also shapes the spec: high 90s are common from July through September, so the right insulation, dual-pane windows, and a mini-split system are not upgrade options. They are the difference between a unit that rents and one that sits empty.
Our Main Sherman Oaks Services
Most Sherman Oaks homeowners call us about one of three projects: adding square footage to the existing house, converting a detached garage, or building a backyard ADU from the ground up. Each has its own page, with pricing and local specifics, linked below.
Room Addition Contractor in Sherman Oaks
A room addition in Sherman Oaks almost always means matching a 1950s or 1960s ranch, and that takes some care with rooflines, stucco texture, and floor heights. South of Ventura, most additions go out the back or off the side yard where the lot is wide enough. North of the boulevard we are more often working with a smaller footprint and a hillside setback variance, which is the city’s written permission to build closer to the property line than the standard rule allows. The full scope, with Sherman Oaks-specific pricing, is on the service page. Room Addition Contractor in Sherman Oaks.

Garage Conversion Contractor in Sherman Oaks
The original detached garages south of Ventura Boulevard are among the best conversion candidates anywhere in the Valley. A rear alley means we never have to move a fence or disturb the front yard, and the structure already has a slab, framing, and a roof we can inspect and work from. Hillside garages are less common as conversions because many sit on sloped pads with limited headroom. You can see what a conversion costs and why Sherman Oaks garages are different in the dedicated section. Garage Conversion Contractor in Sherman Oaks.

ADU Builders in Sherman Oaks
On a flat Sherman Oaks lot, a detached ADU up to 1,200 square feet is usually achievable under current state law, and the gridded side streets give us dependable access for a crane or a prefab module drop when the lot allows. On hillside lots, an attached ADU or a junior unit is usually the smarter dollar-for-square-foot play. We work with several prefab and modular platforms, including Abodu, Dvele, and Mighty Buildings, and we also build conventional stick-frame units with James Hardie siding. Full pricing and method selection are covered on the page. ADU Builders in Sherman Oaks.

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 Sherman Oaks
We build with and service the major prefab and modular ADU lines that Sherman Oaks homeowners ask about most: Abodu, Cover, and Dvele. We also handle conventional construction with James Hardie siding and Tuff Shed-style structures, which keeps the method matched to the lot and budget. See our brands for the full list.
Pricing for ADU Company in Sherman Oaks, CA
| Service | Typical Range in Sherman Oaks |
|---|---|
| Garage conversion, attached | $85,000 – $135,000 |
| Garage conversion, detached | $110,000 – $170,000 |
| Detached ADU, prefab or modular | $180,000 – $300,000 |
| Detached ADU, conventional build | $220,000 – $350,000 |
| Attached ADU or junior unit | $140,000 – $225,000 |
| Room addition, 400 – 600 sq ft | $120,000 – $190,000 |
| Room addition, 600 – 1,000 sq ft | $170,000 – $280,000 |
| Site prep, grading, and drainage | $8,000 – $35,000 |
| Permit fees and city charges | $3,000 – $12,000 |
What pushes a Sherman Oaks price upward is almost always the dirt under the job. A flat lot south of Ventura with an existing garage pad is the cheapest place to build. A hillside lot that needs retaining, drainage, or a deeper foundation is the most expensive. Either way, the number we put in writing before work starts is the number on the final invoice, and that is part of The Garrison Standard: show up in the window, price in writing, by the book, leave it clean, stand behind it for a year.
Neighborhoods We Serve in Sherman Oaks
We work the full width of Sherman Oaks, from the flat gridded streets below Ventura Boulevard to the hillside enclaves above it. Typical response for an estimate visit anywhere in the city is within a few business days, and scheduling depends more on permit intake than on which neighborhood you are in.
- Sherman Oaks Estates
- Chandler Estates
- South of Ventura flats (Hazeltine to Sepulveda)
- Longridge Estates
- Fashion Square area
Service Area – Cities Near Sherman Oaks
Our crews run the Sherman Oaks corridor and the neighboring Valley cities. If you are just over the border in Encino, CA or Tarzana, CA, scheduling works the same way. We also serve Reseda, CA and Winnetka, CA with the same written-price rule and the same one-year guarantee.
Serving Sherman Oaks, CA - Our Local Coverage Area
We’re based in the Sherman Oaks 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 Sherman Oaks

That depends on the city’s permit intake, not on our schedule. A typical Sherman Oaks ADU or garage conversion permit takes anywhere from a few weeks to a few months, and plan check comments are the biggest variable. We set a realistic start window at the written estimate and do not move the date once permits clear.
Some neighborhoods in Sherman Oaks have HOAs, and their rules run on top of city and state law. State ADU law overrides many local restrictions, but an HOA can still impose design review or parking conditions. We pull the HOA documents before design and flag anything that could stall the permit.
The Garrison Standard covers workmanship defects for 365 days. If something fails inside that year, we come back and make it right at no charge. The guarantee is on paper before the job starts: what it covers, how long it runs, and exactly how we correct a defect.
Call (559) 254-0116 for a free estimate on any ADU, garage conversion, or room addition in Sherman Oaks. A live person answers, and the price goes in writing before any work starts.
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 Sherman Oaks Customers Say
"Built a detached ADU behind our house. The builder is a veteran and runs the site like a platoon: schedule posted, crew on time, everything labeled. Finished within a few days of the date."
- Ken W."Garage conversion with a new bath and kitchenette. Permit was handled by them. Inspection passed first time."
- Sheila B."Foundation and slab poured on schedule. Crew kept the yard orderly."
- Marian J.





