A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateADU Company in Cerritos, CA
Adding an ADU in Cerritos means working with a city that takes its architectural character seriously. The planning department reviews every accessory dwelling unit for harmony with the surrounding mid-century modern and Spanish-influenced homes, which is why design choices that sail through in neighboring cities often stall here. Benson ADU Long Beach knows these requirements front to back, and we put a written price in front of you before any work begins. Call (562) 362-3885 to schedule your free estimate.
Why Cerritos Homes Are Different
Most Cerritos homes were built between the 1960s and 1980s, and the housing stock shows it in the best way: solid wood-frame construction, stucco or brick veneer, and lots that were platted when land was more generous. That last part matters a lot for ADU work. You likely have room for a detached unit, but Cerritos also has tree ordinances that protect mature landscaping, so placement nearly always requires working around a protected tree or two. Every project starts with the same question: how do we get the square footage you want without touching what the city won’t let us remove?
The climate shapes the build too. Warm, dry summers mean the ADU needs proper insulation and ventilation from day one, or it turns into a greenhouse by August. The wet winters, while mild compared to northern California, still deliver occasional heavy rain events that punish lazy drainage design. We plan both before the first permit is pulled.
Setbacks, those required distances between a structure and the property line, are enforced strictly in Cerritos. A detached ADU almost always goes in the rear yard, and creative placement is the norm, not the exception. You also need to know the difference between an ADU and a JADU, which is a junior accessory dwelling unit, a smaller unit converted from existing space inside the primary home. The rules for each are different, and we walk you through both options before you commit to anything.
Our Main Cerritos Services
These are the three projects Cerritos homeowners call us about most, and each has its own dedicated page with pricing and specifics.
ADU Builders in Cerritos
Building an ADU in Cerritos means passing a design review that most cities don’t have. The city wants new units to look like they belong next to a 1970s ranch or a Spanish-influenced two-story, and prefab panels from brands like Plant Prefab and Dvele give us a fast path to a structure that fits. We handle the setbacks, the tree ordinances, and the paperwork. ADU Builders in Cerritos has the full breakdown of costs and timelines.
Home Addition Contractor in Cerritos
A home addition in Cerritos usually means expanding outward on a generous lot while keeping the existing roofline or matching the original stucco. The city’s design standards apply here too, so we plan the foundation, framing, and cladding to pass review the first time. James Hardie siding is a common choice because it holds up to both the summer heat and the winter rain without fading or warping. Home Addition Contractor in Cerritos covers pricing and the full process.
Room Addition Contractor in Cerritos
Adding a single room sounds simpler than an ADU, but in Cerritos it still triggers the same design review. We see a lot of homeowners converting a spare bedroom into a home office or adding a ground-floor suite for aging parents. The work moves faster when the addition attaches to the existing structure, and we keep the disruption contained. Room Addition Contractor in Cerritos explains what to expect and what it 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 Cerritos
We build with Plant Prefab, Tuff Shed, and James Hardie materials, and we order panels and components before the permit is even issued so nothing sits in a warehouse waiting on a backorder. Our brands page lists every partner we work with, so you can research quality yourself before you sign.
Pricing for ADU Company in Cerritos, CA
| Service | Typical range in Cerritos |
|---|---|
| Detached ADU, full build | $180,000 – $350,000 |
| Attached ADU conversion | $120,000 – $220,000 |
| Garage conversion to ADU | $95,000 – $180,000 |
| JADU conversion | $55,000 – $110,000 |
| Prefab ADU (Abodu, Dvele, Plant Prefab) | $150,000 – $320,000 |
| Home addition, ground floor | $140,000 – $280,000 |
| Home addition, second story | $180,000 – $350,000 |
| Room addition, single room | $55,000 – $130,000 |
| Primary suite addition | $90,000 – $190,000 |
| Home office addition | $45,000 – $95,000 |
In Cerritos, two things push prices up: protected trees that force unusual foundation placement, and design review iterations when the first plan doesn’t match the neighborhood character. That’s why we put a written price in front of you before work starts, and why the 365-Day Done Right Promise is stamped on every project: if it’s not right within a full year, we make it right.
Neighborhoods We Serve in Cerritos
Our crews work across the entire city, and we schedule each project so the crew that starts your job is the crew that finishes it. Here are a few of the neighborhoods we’re in regularly:
- Shadow Park
- Cerritos Towne Center area
- Leal Elementary district
- Gonsalves Elementary district
- Los Cerritos Park area
Most Cerritos estimates are scheduled within a few business days, and we confirm every arrival time before the truck leaves.
Service Area – Cities Near Cerritos
Benson ADU Long Beach coordinates scheduling and dispatch from the brand’s Los Angeles office, and local crews serve Cerritos directly. We also work right across the city line in Artesia, CA, La Palma, CA, Buena Park, CA, and La Mirada, CA.
Serving Cerritos, CA - Our Local Coverage Area
We’re based in the Cerritos 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 Cerritos
Cerritos requires ADU plans to go through a design review process that checks harmony with existing neighborhood character. A well-prepared submittal typically clears faster than a rushed one, and we do this constantly. Call (562) 362-3885 and we’ll tell you what your specific project is looking at.
Some Cerritos neighborhoods have active HOAs with their own architectural guidelines, which are separate from the city’s planning process. California state law limits HOA power to block ADUs, but design standards still apply. We’ll review your HOA’s rules early so nothing stalls mid-project.
Yes, and we do it regularly. Cerritos tree ordinances protect mature landscaping, so ADU placement often shifts to avoid root zones and canopy lines. That’s a normal part of the design phase here, not an obstacle. Call (562) 362-3885 for a free estimate on your specific lot.
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 Cerritos Customers Say
"Plumbing and electrical passed on the first inspection."
- Alan B."Fixed quote and clear change orders approved by text."
- Trina M."Communication was the best part. I always knew what was happening that week without having to ask."
- Dolly N.
