







A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateFast, Reliable ADU Builders Across Inglewood
ADU construction in Inglewood typically costs between $180,000 and $420,000 for a detached unit, with garage conversions running $120,000 to $220,000 before permit fees. Most Inglewood homeowners need an ADU builder who understands the city’s 1920s-1950s housing stock, because tying a new unit into an older home is not the same job as building on fresh ground. Fielding ADU Torrance does this work every week in Inglewood, and we answer the phone when you call – no voicemail, no callback queue. Call (424) 358-3068 to schedule a free estimate and get your written price before any work starts.
Reed Calloway leads our ADU team, and the first thing he’ll tell you about Inglewood is that the permit path matters as much as the framing. The city has its own plan check rhythm, its own setback rules, and its own inspectors. We know them. We pull permits on every project, we inspect before we quote, and we put the price in writing before a single nail is driven.
Why Fielding ADU Torrance Is Inglewood’s Preferred ADU Builders Company

Our ADU Builders team works Inglewood every week – from Morningside Park up to the neighborhoods off La Brea, and across the older blocks near Centinela Avenue. We’re not a franchise that sends a crew from across the county and hopes for the best. Inglewood’s lot patterns, soil, and building age are familiar ground to us. That local knowledge changes how we bid, what we inspect, and how fast we move through plan check.
Inglewood homeowners call us because they’ve already dealt with a contractor who missed the schedule, moved the price at the door, or left the permit board blank. We price differently. The written price is handed to you before work starts – the number you approve on day one is the number on the final invoice. Our crews are background-checked and uniformed, so you know exactly who is walking onto your property. And every project carries The Garrison Standard: a written one-year guarantee. If something fails inside that year, we come back and correct it at no charge.
Fielding ADU Torrance is an independently owned member of the Garrison Partners family. Garrison Partners has been building to The Garrison Standard since 2006, and we hold ourselves to it: show up in the window, price in writing, build by the book, leave it clean, stand behind it for a year.
What Sets Us Apart
- Written price before work starts. Not an estimate range. Not a ballpark. A line-item written price.
- 365-Day Done Right Promise. The full year guarantee is spelled out on paper: what it covers, how long it runs, and exactly how we make it right if something fails.
- Permits pulled, inspections passed. We do not let a single ADU in Inglewood go to framing without a valid permit on file.
- Live person on every call, 24/7. Noon or midnight, someone picks up.
ADU Plans in Inglewood
ADU Plans in Inglewood typically run $8,000 to $18,000 for full architectural and structural drawings, depending on whether you’re building a detached unit, converting a garage, or attaching to an existing single-family home. The flat terrain makes foundation engineering simpler than in the hills, but Inglewood’s pre-1960 homes carry plan-level complications that a generic drafting service misses: seismic lateral bracing on attached garages, drain-line slope corrections, and electrical panel load calculations that the city checks twice. We include the inspection, the engineering, and the plan check submittal package so the drawings match the actual conditions of your lot, not a template.
Working With Inglewood’s Plan Check Process
The city requires ADU plans to show exactly how the new sewer tie-in connects to the existing main drain, and inspectors here are particular about that detail. Our in-house team walks each plan through plan check and handles the back-and-forth. You don’t sit on hold with a city clerk or chase revision requests.
What We Include So the Plans Actually Get Approved
Setback variance requests, where the city’s written permission is needed to build closer to the property line than the standard rule allows, are written into the drawings rather than left as a surprise. We document the existing electrical service capacity, the sewer lateral depth, and the roof tie-in condition before the plans go in. For Inglewood’s 1940s-1950s single-family stock, that pre-plan inspection catches issues that would otherwise trigger two or three rounds of plan-check comments.
ADU Contractor in Inglewood

An ADU Contractor in Inglewood handles the full build: demolition if needed, foundation, framing, rough plumbing and electrical, drywall, finishes, and the final inspection sign-off. Most of our Inglewood builds run four to seven months from permit issuance to final occupancy, with prefab and modular units shortening that timeline. What separates a competent contractor from an expensive one is how the unknowns get priced. Our written price includes inspection-based allowances, and if we open a wall and find something the previous remodel hid, you see a written change order with a line-item price and the reason for it before we touch anything else.
Garage Conversion and Detached Unit Builds
Garage conversions in Inglewood represent the most common ADU path, partly because the city’s deep lots from the 1920s-1950s often have detached garages that sit perfectly positioned for a rear unit. We handle the seismic lateral bracing upgrade, the slab or stem-wall foundation retrofit, and the panel load calculation so the converted unit passes final inspection without a last-minute scramble.
What a Written Change Order Actually Looks Like
On a 1948 single-story near Centinela Avenue, our crew opened the wall to tie in a new ADU bathroom and found the original galvanized vent stack had rusted through behind the stucco. We wrote a change order for DWV replacement in ABS, got approval on-site, and finished the rough-in the same week without delaying the ADU framing. That’s how Fielding handles surprises: document it, price it, get your written approval, then build it.
Trusted Brands We Service in Inglewood
We build with the platforms Inglewood homeowners are already researching, because the right build method depends on your lot, your budget, and your timeline. Fielding ADU Torrance is fluent with Abodu, Cover, and Dvele for prefab and modular ADU installations, and we also run conventional builds using James Hardie siding and Tuff Shed-style structures. If you’re weighing a prefab unit against a site-built ADU, we’ll give you written pricing on both and walk you through what each means for foundation work, utility runs, and the final inspection. Our local crews keep common finishing and rough-in materials stocked so Inglewood jobs don’t stall waiting on a parts order.
Common ADU Builders Problems We See in Inglewood Homes
- Galvanized drain lines under pre-1960 slabs. Inglewood’s older homes often hide galvanized drain pipe that has corroded or sagged under the slab. Tying a new ADU into that line without upsizing it to current Uniform Plumbing Code will fail inspection, and we catch it during our pre-bid inspection and price the DWV replacement in the written quote.
- Undersized electrical panels. Many of the 1920s-1950s single-family homes here still run a 100-amp service. An ADU with a mini-split, a cooktop, and a water heater pushes past that. We calculate the load during the plan phase and include a service upgrade in the written price if the existing panel cannot carry the new unit.
- Seismic bracing on attached garage conversions. Garages built before current lateral bracing standards need a retrofit when converted to living space, and the city enforces it. We price the shear wall or moment frame work up front, not as a mid-project surprise.
- Stucco texture matching on attached additions. Inglewood’s wood-frame stucco homes carry specific texture patterns from the 1940s and 1950s. An attached ADU that doesn’t match the existing texture looks like an afterthought. Our finishers match sand finish and skip trowel patterns so the addition reads as original to the house.
Pricing for ADU Builders in Inglewood, CA
Detached ADUs in Inglewood run $180,000 to $420,000 all-in for a permitted, finished unit, with studio ADUs starting around $150,000. Junior ADUs, which convert existing interior space, run $90,000 to $150,000. Garage conversions typically land between $120,000 and $220,000. Prefab and modular installations through Abodu or Cover generally fall between $190,000 and $320,000 depending on site work and utility runs. What moves the number: sewer lateral condition, panel capacity, foundation type, and whether the city requires a setback variance. The flat terrain keeps foundation costs lower than hillside neighborhoods, but the age of Inglewood’s housing stock means drain-line and electrical upgrades appear on most quotes. We build those allowances into the written price so the number you approve is the number you pay. Call (424) 358-3068 for a free estimate on your specific lot.
We Also Serve Cities Near Inglewood
Fielding ADU Torrance serves ADU Builders in Inglewood and the surrounding South Bay and South Los Angeles communities. Our crews work regularly in Compton, Redondo Beach, Torrance, and Lomita. If your property sits within a short drive of Inglewood, the same written price, one-year guarantee, and permitted-work discipline apply. Call (424) 358-3068 and tell us where you are.
Serving Inglewood, CA - Our Local Coverage Area
We’re based in the Inglewood 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 Builders in Inglewood
Not always, but most pre-1960 Inglewood homes we inspect cannot support the added load without a service upgrade to 200 amps. The city reviews the total calculated load, not just the subpanel feed, and a 100-amp service rarely passes once an ADU’s HVAC, water heater, and appliances are tallied. We include a panel load calculation in our pre-bid inspection, and if a service upgrade is required, it’s written into your price before you approve it. Call (424) 358-3068 for an exact assessment of your panel.
We write a change order. The galvanized drain is documented, the replacement in ABS is priced line by line, and the work proceeds only after our customer approves the number and the scope in writing. This is common on Inglewood’s 1940s-1950s homes, and our pre-bid inspection catches most of it before we open a wall. If we uncover a section we couldn’t see until demo, the change order process is the same: you see the price, you approve it in writing, and then we build.
Some can. SB9 allows subdivision of a single-family lot into two parcels under specific conditions, including owner-occupancy requirements and minimum lot sizes. Adding an ADU on top of an SB9 split is possible but the sequencing matters, because a newly split parcel changes the setback and utility access rules. We review your lot’s SB9 eligibility during the initial site visit and flag anything that would block the split before you invest in plans. Call (424) 358-3068 to have your property evaluated.
We document it, stop the affected area of work, and write a change order for the repair. Termite damage in 1920s-1950s framing is a known risk in Inglewood, and our pre-bid inspection looks for signs of it. If damage appears that was hidden behind stucco or drywall, we photograph it, price the affected framing replacement, and get your written approval before we cut anything further. The one-year Garrison Standard covers the repair work after completion.
The building code does not require texture matching, but the visual difference between an original 1940s sand finish and a modern smooth coat is obvious from the street. We match the existing texture and color as standard practice on attached ADUs so the addition looks original to the house. On detached units, we match the style of the primary residence where the sightlines connect. Call (424) 358-3068 to talk about your lot and what we’d recommend for your specific home.
Written by Reed Calloway, Owner at Fielding ADU Torrance, serving Inglewood and the surrounding South Bay communities.



