







A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateADU Company in Cudahy, CA
Adding an ADU, garage conversion, or room addition in Cudahy comes down to three things: a tight lot, an older house, and a city building department that expects the paperwork done right the first time. Fielding ADU Builders handles all three. We price every Cudahy project in writing before any work starts, and we back the finished job with a one-year written guarantee. Call (361) 315-4177 to schedule a free estimate and get real numbers for your property.
Why Cudahy Homes Are Different

Cudahy is a small, densely built city in southeast Los Angeles County. Many of the homes here were built between the 1940s and 1960s, which means two things for anyone considering an ADU or addition. First, the original foundations and framing often need to be assessed before we can attach new square footage. Second, lot sizes run small – many in the 4,000 to 6,000 square foot range – so a detached ADU has to be sited carefully to respect setback rules. A setback variance (the city’s written permission to build closer to the property line than the standard rule allows) is sometimes the difference between a buildable ADU and one that stays on paper.
We also see a lot of garage conversions in Cudahy because the existing detached garages on these older lots sit right at the rear property line. Converting one into living space often triggers a closer look at the existing slab and drainage, since Cudahy’s flat terrain and compact blocks mean water has to be directed properly or it pools against the new wall. Our crews account for that before the first inspection, not after.
Our Main Cudahy Services
Most Cudahy homeowners come to us for one of three projects: a backyard ADU, a garage conversion, or a room addition on the existing house. Each has its own page with specific pricing, timelines, and Cudahy-specific notes.
Room Addition Contractor in Cudahy
Room additions in Cudahy usually mean going out the back or up, since side yards on these older lots rarely leave room to expand. Going up means checking the existing foundation and first-floor framing, and going out means working around the utility lines that run tight to the house on these small parcels. Either way, we put the full scope in writing before day one. See what a Room Addition Contractor in Cudahy can do with your lot.

Garage Conversion Contractor in Cudahy
Many Cudahy garages were built as single-car or tandem structures, and converting one into a legal living space means bringing the foundation, insulation, electrical, and egress up to current code. On the older slabs we see here, that often includes a new floor assembly and upgraded drainage. We handle the permit set and the build so the finished conversion is legal, rentable, and comfortable. Details on Garage Conversion Contractor in Cudahy work and pricing.

ADU Builders in Cudahy
A detached ADU on a Cudahy lot has to fit the yard, meet setback requirements, and connect to existing utilities without trenching through the neighbor’s property. We build conventional ADUs using James Hardie siding and also work with prefab platforms like Abodu and Cover when the lot allows for faster delivery. The right method depends on your lot dimensions and budget. Learn what our ADU Builders in Cudahy team can do on your property.

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 Cudahy
We install and service ADUs and additions built on Abodu, Cover, and Mighty Buildings platforms, plus conventional construction using James Hardie siding. Parts and panel orders for these brands are coordinated through our Los Angeles office, and we schedule Cudahy service visits around your timeline. See our brands for full details.
Pricing for ADU Company in Cudahy, CA
| Service | Typical range in Cudahy |
|---|---|
| Garage conversion to living space | $85,000 – $145,000 |
| Detached ADU (conventional build) | $220,000 – $380,000 |
| Detached ADU (prefab, e.g. Abodu) | $190,000 – $310,000 |
| Attached ADU addition | $160,000 – $260,000 |
| Room addition (200 – 400 sq ft) | $95,000 – $185,000 |
| Room addition (over 400 sq ft) | $180,000 – $320,000 |
| Foundation upgrade (existing slab) | $8,000 – $25,000 |
| Electrical service upgrade | $3,500 – $8,000 |
| Drainage and grading work | $2,500 – $9,000 |
What pushes the price up in Cudahy is usually the age of the existing structure – older slabs and wiring need more correction before new work can attach – and the tight lot access that slows material delivery. Whatever the number, we write it down before any work begins, and that written figure is what you pay at the end. No change orders on our own work, no surprises at the final invoice.
Neighborhoods We Serve in Cudahy
We work across all of Cudahy, including the neighborhoods around Clara Street Park, the residential blocks along Atlantic Avenue, and the homes near Lugo Park and the LA River corridor. Response time for estimates in Cudahy is typically within a few business days, depending on our current Cudahy schedule.
- Clara Street Park area
- Atlantic Avenue corridor
- Lugo Park neighborhood
- LA River adjacent blocks
- Santa Ana Street corridor
Service Area – Cities Near Cudahy
While this page covers Cudahy specifically, our crews also serve homeowners in nearby Los Angeles, CA, Long Beach, CA, Anaheim, CA, and Riverside, CA. If you’re just outside Cudahy, call and we’ll confirm whether your address is in our current service area.
Serving Cudahy, CA - Our Local Coverage Area
We’re based in the Cudahy 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 Cudahy

Once we complete a site visit and you approve the written price, we typically begin the permit package within one to two weeks. The Cudahy building department’s review timeline affects the start date more than our schedule does. Call (361) 315-4177 and we’ll give you a realistic window for your specific project.
Yes. We prepare the plans, submit the permit package, and schedule every inspection through final sign-off. Cudahy requires the same building code compliance as the rest of Los Angeles County, and we build to that standard on every job. The permit status is never a blank board on our projects.
We hand you a written price before any work starts, and that number is the number on the final invoice. The only exception is if you change the scope mid-project, and any scope change gets its own written price before the new work begins. That policy applies to every Cudahy job, no exceptions.
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 Cudahy 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."Garage conversion with a new bath and kitchenette. Permit was handled by them. Inspection passed first time."
- Sheila B.



