A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateADU Company in Los Angeles, CA
Adding an ADU in Los Angeles means working with a housing stock where detached garages from the 1920s and 1930s sit on lots with usable rear yards, and where the city’s own rules actively encourage up to two units plus a JADU on many single-family parcels. Fielding ADU Los Angeles handles garage conversions, backyard ADUs, and room additions with a written price before work starts and a one-year written guarantee on the finished project. Call (213) 732-1415 for a free estimate.
Why Los Angeles Homes Are Different
Los Angeles is ground zero for ADU construction in California. State laws like SB 9 and local ordinances allow up to two units plus a JADU on single-family lots, which has turned thousands of pre-war garages and underused backyards into buildable square footage. The housing stock matters here: a large share of the city’s single-family homes were built between 1920 and 1970, and many of the earlier ones have detached garages with seismically vulnerable foundations. When we convert a pre-1950s garage in neighborhoods like West Adams, Highland Park, or Van Nuys, the job usually includes a foundation retrofit before any framing goes up. That earthquake work is not an add-on in Los Angeles; it is a standard part of doing the conversion correctly.
The mild Mediterranean climate also changes the scope. Unheated or partially enclosed conversions are genuinely feasible here, which means less insulation and HVAC work than a comparable job in colder regions. A detached garage conversion in Los Angeles can often avoid running new ductwork entirely, and that keeps the price and the schedule tighter. The tradeoff is that the city’s permitting process is famously detailed, and setback variances, the city’s written permission to build closer to the property line than the standard rule allows, come up often on narrow lots in older neighborhoods like El Sereno and Jefferson Park.
Fielding ADU Los Angeles is an independently owned member of the Garrison Partners family. We hold our work to The Garrison Standard: show up in the window, price in writing, by the book, leave it clean, stand behind it for a year.
Our Main Los Angeles Services
Most Los Angeles homeowners come to us for one of three projects: a garage conversion, a backyard ADU, or a room addition. Each has its own dedicated Los Angeles page with local pricing and specifics.
Room Addition Contractor in Los Angeles
Room additions in Los Angeles often mean bumping out a post-war ranch in the Valley or adding a second story to a 1920s bungalow near Exposition Park. The lot shapes and setback rules vary block by block, so the first thing we do is check what the parcel will actually allow before you spend money on plans. Many additions here also trigger a foundation check on the existing structure, particularly on hillside lots where the original slab was poured decades ago. Reid and his crew handle the whole permit package and build to the same written-price rule as every other Fielding project. See the full breakdown on our Room Addition Contractor in Los Angeles page.
Garage Conversion Contractor in Los Angeles
A garage conversion in Los Angeles is usually the fastest path to rentable or livable square footage, and the city’s ADU rules make detached garage conversions legal on many lots that were previously zoned out. The catch in this city is the foundation: pre-1950s garages frequently sit on unreinforced slabs or stacked-stone footings that will not pass a structural review without retrofit work. We factor that into the written price upfront, not mid-job. Read more on the Garage Conversion Contractor in Los Angeles page.
ADU Builders in Los Angeles
Backyard ADUs in Los Angeles span everything from a 400-square-foot studio behind a 1930s Spanish in Mid-City to a two-bedroom unit on a double lot in Northridge. We build conventionally and we also work with prefab platforms, including Abodu and Cover, which can shorten the on-site build time considerably on a standard flat lot. The right method depends on your lot, your budget, and how quickly you want the unit occupied. Full local pricing and process details are on our ADU Builders in Los Angeles 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 Los Angeles
We work with leading prefab and modular platforms, including Abodu, Cover, and Dvele, alongside conventional builds using James Hardie siding and Tuff Shed-style structures. Matching the build method to your budget and lot is part of why we can put a written price in front of you fast. See our brands for the full list.
Pricing for ADU Company in Los Angeles, CA
| Service | Typical range in Los Angeles |
|---|---|
| Detached garage conversion to ADU | $115,000 – $195,000 before permit fees |
| Attached garage conversion to ADU | $95,000 – $165,000 before permit fees |
| Backyard ADU (1 bed, 1 bath) | $185,000 – $275,000 before permit fees |
| Backyard ADU (2 bed, 2 bath) | $240,000 – $355,000 before permit fees |
| Prefab ADU (studio, including site work) | $155,000 – $230,000 before permit fees |
| Room addition (master suite) | $135,000 – $210,000 before permit fees |
| Room addition (family room bump-out) | $110,000 – $175,000 before permit fees |
| Foundation retrofit (pre-1950s garage) | $18,000 – $38,000 added to scope |
| Setback variance application support | $3,500 – $7,500 in fees and processing |
| Structural plans and engineering | $6,000 – $14,000 |
What pushes a Los Angeles price up is usually the foundation: retrofitting a pre-1950s slab or stem wall on an older garage can add five figures to the total, and hillside lots in areas like Echo Park or Mount Washington often need additional engineering for caissons or retaining. Whatever the number is, you will have it in writing before any work begins. The price you approve on day one is the price on the final invoice.
Neighborhoods We Serve in Los Angeles
Our crews work across Los Angeles, from the San Fernando Valley down through the central basin and into the Westside. We schedule projects throughout the week and keep a single point of contact on every job so you are not guessing who shows up.
- West Adams
- Highland Park
- Van Nuys
- El Sereno
- Jefferson Park
Service Area – Cities Near Los Angeles
Our Los Angeles office also schedules work in nearby cities. If you are in Huntington Park, CA, Gardena, CA, Culver City, CA, or West Hollywood, CA, the same written-price rule and one-year guarantee apply.
Serving Los Angeles, CA - Our Local Coverage Area
We’re based in the Los Angeles 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 Los Angeles
Yes. We prepare and submit the full permit package, including structural drawings and any required setback variance requests. Los Angeles plan review times vary by project type and current city workload, but once the permit is issued, our crew builds to the approved plans without deviation.
State ADU laws generally supersede HOA restrictions on ADUs, but your HOA may still have design-review requirements for exterior changes. We review the governing documents before pricing so any HOA conditions are accounted for in the written estimate. Call (213) 732-1415 and we will walk through what applies to your lot.
Most garage conversions run four to seven months from the first site visit to final inspection, and new detached ADUs usually run six to ten months depending on site conditions and plan review. Prefab builds with a partner like Abodu or Cover can be faster on suitable lots. We give you a written schedule alongside the written price, and we hold to both.
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 Los Angeles Customers Say
"Room addition over the back patio. Framing is square, windows are tight, and the roofline matches."
- Danny L."Foundation and slab poured on schedule. Crew kept the yard orderly."
- Marian J."Honest feedback on what the lot could fit. Told me up front what would fit on the lot and what the setbacks would allow."
- Rita C.
