







A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateADU Company in Bell Gardens, CA
Fielding ADU Builders handles ADU construction, garage conversions, and room additions in Bell Gardens, CA, with the written price in your hand before any work starts. Bell Gardens is dense, flat, and built out – most lots here sit on compact R-2 zoned parcels where a backyard ADU or a garage conversion is the fastest path to more living space. We work with Abodu, Cover, and Dvele prefab systems plus conventional builds, so the method matches your lot and your budget. Call (361) 315-4177 to get a written quote.
Why Bell Gardens Homes Are Different

Bell Gardens housing stock runs small and mid-century. Most homes were built between the 1940s and 1960s on lots that rarely exceed 5,000 square feet, which means the standard detached ADU plan often needs a setback variance – the city’s written permission to build closer to the property line than the standard rule allows. We handle that paperwork as part of the permit package, so the variance gets filed with the rest of the drawings instead of stalling the job later.
Garage conversions here are usually the most practical ADU route. Many Bell Gardens garages are detached, unpermitted additions from decades back, or built tight to the rear property line. That affects foundation work, electrical service, and the city’s requirements for bringing the structure up to current code before it can count as living space. We quote that work honestly up front. The flat terrain helps keep site prep simple, but the age of these structures means we budget for unknowns like outdated wiring and slab cracks before they become change orders. That is the Garrison Standard: price in writing, by the book, leave it clean, stand behind it for a year.
Our Main Bell Gardens Services
Bell Gardens homeowners call us most often about three jobs: adding a room, converting a garage into living space, and building a new backyard ADU. Each has its own Bell Gardens page below with local pricing and specifics.
Room Addition Contractor in Bell Gardens
A room addition in Bell Gardens usually means extending off the back or side of a mid-century home, and the work has to respect tight side-yard setbacks common to R-2 lots here. We pull the permits, handle the foundation tie-in correctly, and match rooflines so the addition does not look pasted on. Written price before we start, crew background-checked and uniformed. Full details on the Room Addition Contractor in Bell Gardens page.

Garage Conversion Contractor in Bell Gardens
Converting a garage in Bell Gardens means turning an often-aging, sometimes unpermitted structure into legal living space. That involves raising the floor system, upgrading the electrical panel, adding insulation, and sometimes rebuilding the slab. We know what Bell Gardens building and safety looks for on these conversions because we file the plans ourselves. Full details on the Garage Conversion Contractor in Bell Gardens page.

ADU Builders in Bell Gardens
A detached ADU on a small Bell Gardens lot usually needs a setback variance, and we file that as part of the permit set. We build with prefab systems like Abodu and Cover when the lot access and timeline favor it, and conventional framing with James Hardie siding when they do not. Either way, the price is written down before we start and the one-year written guarantee applies. Full details on the ADU Builders in Bell Gardens 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 Bell Gardens
We work with Abodu, Cover, and Dvele ADU platforms, plus conventional builds using James Hardie siding. Bell Gardens projects often favor compact prefab models that fit tight lots and ship in fewer modules. Learn more about what we service on our brands page.
Pricing for ADU Company in Bell Gardens, CA
| Service | Typical range in Bell Gardens |
|---|---|
| Garage conversion (attached) | $85,000 – $135,000 |
| Garage conversion (detached) | $110,000 – $165,000 |
| Detached backyard ADU (prefab) | $160,000 – $240,000 |
| Detached backyard ADU (conventional build) | $190,000 – $290,000 |
| Junior ADU / interior conversion | $70,000 – $115,000 |
| Room addition (ground floor, 200 – 400 sq ft) | $90,000 – $160,000 |
| Second-story addition (400 – 600 sq ft) | $180,000 – $280,000 |
| Prefab ADU (Abodu / Cover / Dvele, installed) | $175,000 – $260,000 |
Prices in Bell Gardens push higher when the lot needs a setback variance, when garage slabs have to be rebuilt, or when the existing electrical panel needs a service upgrade before the ADU can be energized. The number we put in writing on day one is the number on the final invoice – no change orders unless you ask for the change.
Neighborhoods We Serve in Bell Gardens
We serve all of Bell Gardens, CA. Most of the city is flat residential grid, which makes site access and material delivery straightforward. Here are the neighborhoods where we do the most ADU and addition work:
- Bell Gardens central (between Florence Avenue and Gage Avenue)
- The residential streets north of Eastern Avenue
- The Jaragua Park area
- Bell Gardens south (below Florence Avenue toward the Rio Hondo)
Service Area – Cities Near Bell Gardens
We also build ADUs and additions in the surrounding cities. If you are in Downey, CA, Bell, CA, Maywood, CA, or South Gate, CA, the same written-price policy and one-year guarantee apply. Dispatch and scheduling are coordinated from our Los Angeles office; crews serve Bell Gardens locally.
Serving Bell Gardens, CA - Our Local Coverage Area
We’re based in the Bell Gardens 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 Bell Gardens

Once the written quote is approved, we begin the permit drawings immediately. Bell Gardens plan review typically runs several weeks, and we handle the filing, revisions, and variance paperwork as part of the permit set. Call (361) 315-4177 and we will give you a realistic timeline for your specific lot.
Yes, we prepare and file the setback variance application along with the ADU plans. Bell Gardens lots are small, and most backyard ADUs need some variance. The fee and review time are included in the written quote before you approve anything.
No. The Garrison Standard puts the price in writing before any work starts. The number you approve on day one is the number on the final invoice. The only way it changes is if you ask for a change. Call (361) 315-4177 for a free estimate.
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 Bell Gardens Customers Say
"Solid job. Cabinet delivery was a week behind but they worked around it."
- Ben G."Insulation, drywall, and finishes were all well done. Feels like part of the house."
- Pete O."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.



