ADU Company in Carson, CA
Lodgewick ADU Builders is an ADU company serving Carson, CA, and we approach every project here with one rule: the price is written down before any work starts. Most Carson homes were built in the 1960s and 70s, which means the electrical panel, the water lines, and the sewer lateral all need a hard look before an accessory dwelling unit can go vertical. Carson lots also run large, often 7,000 square feet or more, so a detached ADU is genuinely on the table for more homeowners here than in most South Bay cities. Call (254) 602-5618 for a free estimate, and you’ll get real numbers in writing.
Why Carson Homes Are Different
Carson’s housing stock is almost entirely slab-on-grade tract homes from the 1960s and 1970s. That single fact drives more of the ADU conversation here than anything else. When we build an ADU on one of these properties, we’re almost always core-drilling the existing slab to stub out new sewer and water lines, and that work has to be coordinated with the city’s inspection schedule. The original 100-amp panels on most of these homes, frequently Federal Pacific or Zinsco, usually can’t carry a second dwelling unit, so a panel upgrade lands in the budget. And the galvanized water supply lines common in this era tend to restrict flow, which is another upgrade item Carson homeowners don’t expect.
The air here is mild and marine-influenced for most of the year, which is good news: a single-zone mini-split almost always satisfies Title 24 energy compliance for a Carson ADU, and we don’t see the cooling loads that inland cities fight. But the same coastal moisture means salt air works on exposed conduit and HVAC linesets over time, so we spec materials accordingly. One more distinctly Carson thing: parts of the city sit over the former Dominguez oil field. On affected blocks, excavation for footings or utility trenches can trigger soil methane testing, which adds a soils engineer sign-off and a vapor barrier to the permit path. Out-of-town builders miss this constantly. We pull the city’s hazardous-materials overlay maps before we bid, so it’s in your written price the first time.
Our Main Carson Services
These are the three projects Carson homeowners ask us about most. Each has its own page with local pricing, permit notes, and what the work actually looks like on a Carson lot.
Home Addition Contractor in Carson
A Carson home addition means tying new square footage into a 1960s or 70s frame and foundation, and the tie-in is where cheap bids fall apart. Slab elevations shift, roof lines don’t match, and the original framing is often undersized by today’s code. We build additions that match the existing roofline and floor height, and we put every material allowance and permit fee in the written price before the first saw cut. Home Addition Contractor in Carson
Garage Conversion Contractor in Carson
Most Carson garages are attached, built on the same slab as the house, and sized well for a one-bedroom conversion. The real work is underneath: cutting the slab for a new bathroom drain, running a dedicated circuit back to the panel, and often replacing the panel itself before the city will sign off. We handle the full permit package, including any sewer lateral condition the city flags. Garage Conversion Contractor in Carson
ADU Builders in Carson
Carson’s large lots and high demand for multigenerational housing make a detached ADU the right answer for a lot of families here. We build both site-built and prefab ADUs, and we’ve worked with modules from Abodu, Cover, and Dvele, which can cut months off a traditional build when the lot and budget line up. Whether it’s an in-law unit for parents or a rental unit for cash flow, the price is in writing before we start. ADU Builders in Carson
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 Carson
Our crews work hands-on with James Hardie siding, Abodu and Cover prefab ADU modules, and Dvele panelized systems, matched to the lot, budget, and timeline. Parts and materials are coordinated through our Los Angeles scheduling office and arrive on Carson job sites on the day the crew is scheduled to use them. See our brands for a full list.
Pricing for ADU Company in Carson, CA
| Service | Typical range in Carson |
|---|---|
| Detached ADU (full build) | $180,000 – $350,000 |
| Prefab or panelized ADU | $150,000 – $320,000 |
| Garage conversion (attached) | $85,000 – $150,000 |
| Garage conversion (detached) | $110,000 – $190,000 |
| Junior ADU (JADU) conversion | $60,000 – $110,000 |
| Room addition (300 – 500 sq ft) | $95,000 – $180,000 |
| Second-story addition | $200,000 – $400,000 |
| Foundation, slab, or structural work | $12,000 – $50,000 |
| Engineering, plans & permit fees | $15,000 – $40,000 |
What pushes a Carson ADU toward the top of these ranges is usually what’s underground or in the panel: a full 200-amp service upgrade, a sewer lateral the city requires you to line, or methane mitigation on blocks inside the Dominguez oil field overlay. That’s why our written price is the price. We don’t come back mid-project with a change order for something we should have caught at bid time.
Neighborhoods We Serve in Carson
We work across the city, from the tract-home streets north of the 91 to the neighborhoods south of Victoria Street and around the Dominguez hills. Carson’s parcel sizes and setback rules vary block to block, and we check each address against the city’s specific overlay maps before we quote.
- North Carson
- Central Carson
- South Carson
- Dominguez
- Victoria Park
We schedule Carson estimates and service visits in a defined arrival window, and we call ahead the day of the appointment to confirm it.
Service Area – Cities Near Carson
While this page covers Carson, our crews also serve the neighboring South Bay cities. If you’re just over a city line, your property is likely in our service area too: Torrance, CA, Lakewood, CA, Lomita, CA, and Compton, CA. Each of those cities has its own permit patterns and housing stock, and each gets its own page with local pricing.
Serving Carson, CA - Our Local Coverage Area
We’re based in the Carson 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 Carson
Yes. Every ADU, garage conversion, or home addition we build in Carson goes through the city’s permit process, including any methane-soil review, sewer lateral inspection, and electrical panel upgrade the city requires before sign-off. We pull the permits ourselves and the written price includes the permit fees we expect.
After we complete a site visit and the written estimate is signed, most Carson projects move into design and permitting within two to four weeks. Permit timelines at the city vary depending on the block and whether the Dominguez oil field overlay applies. Call (254) 602-5618 to get your project on the schedule.
No, not unless you change the scope. Our written price covers the work we agreed to, including the upgrades Carson’s older homes usually need, like panel replacement or slab core drilling. If the city requires something extra we genuinely could not have known before bidding, we tell you in writing before that work starts. Call (254) 602-5618 for an exact quote on your property.
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 Carson Customers Say
"Junior ADU conversion inside the house. They protected the rest of our place with plastic and daily cleanup. Done nearly on schedule and on the number they quoted."
- Sabrina Veld"Garage conversion into an office and guest room. Fair written price, finished close to on schedule, and they fixed a small drywall crack under warranty months later without any hassle."
- Diana Cho"The ADU came out beautiful and the permitting, which terrified me, was handled start to finish. They kept me updated every week so I was never wondering what was happening."
- Shauna Mills