A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateADU Company in Torrance, CA
Fielding ADU Builders is the ADU and room-addition specialist inside the Garrison Partners family, serving Torrance homeowners with written pricing before any work starts and a one-year written guarantee on every project. Torrance ADU work comes with a particular set of local realities: mid-century housing stock concentrated in neighborhoods like Old Torrance and Seaside Ranchos, lot sizes that vary block to block, and city permit requirements that favor homeowners who file correctly the first time. If you’re planning a garage conversion, a backyard unit, or a room addition in Torrance, call (361) 315-4177 and we’ll put a number in writing before you commit to anything.
Why Torrance Homes Are Different
Torrance sits on a coastal plain that slopes gently toward the Pacific, which means drainage and foundation behavior vary from the flat blocks near Del Amo Fashion Center to the older sections closer to the 405. We see a lot of 1950s and 1960s ranch-style homes in the neighborhoods south of Torrance Boulevard, and many of them were framed with materials and spacing that predate current shear-wall and setback codes. That matters when you add square footage: the existing structure often needs modest upgrades to meet today’s standards before an addition or ADU can pass inspection.
The city’s planning department reviews accessory dwelling units under its own ADU ordinance, which follows the state’s mandates but adds Torrance-specific parking and setback requirements. Some lots in the Hollywood Riviera and Southwood areas have front-yard restrictions that push ADU placement to the rear yard. Homeowners who’ve already been through one contractor that left the permit board blank tend to ask us the same thing first: will the price change once you open the wall? Our answer is the same here as everywhere we work: the written price you approve before we start is the number on the final invoice.
Coastal air is another factor. Torrance homes within a mile or two of the beach see more corrosion on hardware, and mid-century framing in those zones sometimes carries decades of salt-air exposure. Led by Reed Calloway, our crews account for that when specifying fasteners, flashing, and siding. It’s not exotic work. It’s just knowing what the marine layer does to a building over fifty years.
Our Main Torrance Services
Most Torrance homeowners come to us for one of three jobs: adding a room onto an existing house, converting a garage into living space, or building a freestanding ADU in the back. Each service has its own Torrance page linked below.
Room Addition Contractor in Torrance
A room addition in Torrance usually means extending a ranch home’s footprint into the side or rear yard, and the permitting conversation always starts with setbacks and lot coverage. Older Torrance lots often have nonconforming setbacks that existed before current rules, which means the city may require a variance or a design that works within today’s lines. We pull the permits, coordinate the inspections, and build to the approved plans. See Room Addition Contractor in Torrance for full details on pricing and process.
Garage Conversion Contractor in Torrance
Torrance is full of attached and detached two-car garages, and many of them sit empty while the homeowner needs a bedroom, an office, or a rental unit. A garage conversion is often the fastest permitted path to more living space because the foundation and roof already exist. The work involves insulating, running electrical and plumbing, raising the floor, and replacing the garage door with a wall that matches the house. See Garage Conversion Contractor in Torrance for what it costs and how long it takes.
ADU Builders in Torrance
Torrance homeowners building a backyard ADU choose between prefab platforms like Cover, Dvele, or Mighty Buildings, and conventional stick-built construction using materials like James Hardie siding. The right choice depends on your lot, your budget, and how quickly the city is processing permits this quarter. We handle both paths and put the written price in front of you before the build begins. See ADU Builders in Torrance for a deeper look at options and costs.
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 Torrance
We work with prefab and modular ADU platforms including Cover, Dvele, and Mighty Buildings, and we stock the common parts those systems need for Torrance installs locally. If a panel, flashing, or trim piece fails inside the one-year guarantee window, we come back and replace it at no charge. See our brands for the full list.
Pricing for ADU Company in Torrance, CA
| Service | Typical range in Torrance |
|---|---|
| Detached ADU (conventional build) | $210 – $410 per sq ft |
| Detached ADU (prefab, e.g. Cover or Dvele) | $190 – $360 per sq ft |
| Garage conversion (attached) | $95 – $190 per sq ft |
| Garage conversion (detached) | $125 – $230 per sq ft |
| Room addition (standard finish) | $195 – $340 per sq ft |
| Foundation and site prep (per project) | $6,500 – $28,000 |
| Kitchenette or bathroom in ADU | $18,000 – $48,000 |
| Permit and design fees (Torrance) | $7,000 – $19,000 |
| Utility connections and trenching | $4,000 – $16,000 |
| Exterior siding (James Hardie, labor and material) | $11,000 – $31,000 |
Two things push ADU and addition prices upward in Torrance: older homes that need seismic or shear-wall retrofits before new work ties into them, and rear-yard setbacks that require a variance hearing with the city. Neither one is a mystery fee. We lay out the full written price before any work starts, and the number you approve is the number on the final invoice.
Neighborhoods We Serve in Torrance
We take ADU, garage conversion, and room addition jobs across all of Torrance. Response for a written estimate is usually within a few business days depending on the season and how many inspections the city is scheduling that month.
- Old Torrance
- Hollywood Riviera
- Seaside Ranchos
- Southwood
- Walteria
Service Area – Cities Near Torrance
In addition to Torrance, our crews take jobs in surrounding South Bay and Harbor-area cities. If you’re in Lomita, CA, Carson, CA, Lakewood, CA, or Redondo Beach, CA, we’ll bring the same written-price and one-year-guarantee standard to your project.
Serving Torrance, CA - Our Local Coverage Area
We’re based in the Torrance 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 Torrance
We schedule written estimates across Torrance within a few business days, and dispatch is coordinated from the brand’s Los Angeles office so we can move crews where the work is. Call (361) 315-4177 and a live person will get you on the schedule.
Some Torrance neighborhoods with active HOAs, particularly in newer developments, have recorded CC&Rs that may add review steps on top of city permits. State law limits what an HOA can prohibit, but it’s worth checking your association’s rules early. We’ll flag anything we see in your paperwork before you sign a contract.
Yes. We pull the permits, schedule the inspections, and build to the approved plans for every ADU, garage conversion, and room addition in Torrance. The permit fees and design costs are line items in your written price, not surprises at the end.
Call (361) 315-4177 to schedule your free estimate. We’ll put the price in writing before any work starts, and the finished job is backed by The Garrison Standard for a full year.
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 Torrance 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."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.
