A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateADU Company in Camarillo, CA
Camarillo homeowners add living space differently than most of Southern California, and it comes down to the housing stock. The city is full of single-story ranch homes from the 1950s through the 1980s sitting on 7,000-plus square foot lots, which gives you room to build a backyard ADU or convert an attached garage without fighting for every inch of setback. We’re Fielding ADU Builders, part of the Garrison Partners family, and we handle ADU construction, garage conversions, and room additions across Camarillo. Call (805) 309-3020 and you’ll reach a live person who can talk through your lot and your options.
Why Camarillo Homes Are Different
Camarillo’s ranch homes were built in an era when land was cheaper and garages were wider. That matters for ADU work in two ways. First, many of these attached two-car garages have enough square footage to become a legitimate one-bedroom unit without moving a wall. Second, the lots themselves often have the depth for a detached ADU behind the existing house, something a 4,500-square-foot Oxnard lot simply cannot offer.
The climate shapes the design side. Mild coastal weather and low rainfall mean slab-on-grade foundations stay simple and insulation requirements stay modest, but the Santa Ana winds that sweep down from the Conejo Grade can hit the east side of town hard. Window orientation and ventilation need real thought. On the east side near the Camarillo Airport, many 1960s tracts have detached garages set back from the house, and the city will often fast-track ADU conversion there because the existing setbacks already meet current code. That is a genuine head start on a conversion, and our ADU work in Camarillo starts by checking whether your lot qualifies for it.
Our Main Camarillo Services
The two calls we get most from Camarillo homeowners are garage conversions on those wide attached garages and detached ADUs on the deep lots. Here is what each looks like in Camarillo specifically.
Room Addition Contractor in Camarillo
Many Camarillo ranch homes were built with a floor plan that made sense in 1965 and makes less sense when a parent moves in or a family grows. A room addition here usually means extending off the back of the house, where the lot depth gives you room without pushing into the front setback. The Santa Ana winds matter less for a room addition than for a detached ADU, but the roof tie-in and window placement still need to account for afternoon heat on the west side. We price the job in writing before work starts, and we pull every permit the city requires. See the full scope on our Room Addition Contractor in Camarillo page.
Garage Conversion Contractor in Camarillo
A Camarillo garage conversion is often the fastest path to a permitted second unit, especially when the garage is attached and already has a slab floor, electrical service, and a roof. The east-side detached garages near the airport are a different job entirely: the city often treats them as a fast-track ADU conversion because the existing setbacks already comply. We handle both. The work includes framing, insulation, drywall, electrical, plumbing rough-in for a kitchen or bath, and a new window package designed for cross-ventilation. Details are on the Garage Conversion Contractor in Camarillo page.
ADU Builders in Camarillo
Backyard ADUs in Camarillo split into two paths: a conventional stick-built unit or a prefab platform like Abodu or Cover, which can compress the build timeline on a deep lot with an existing concrete pad. Camarillo’s mild climate keeps foundation work straightforward, but the city’s setback rules and your lot’s existing garage placement will shape what fits. We quote conventional and prefab options side by side so you can see the real tradeoff, not a sales pitch. Read the full breakdown on our ADU Builders in Camarillo 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 Camarillo
We work with the prefab and modular ADU platforms Camarillo homeowners are already researching: Abodu, Cover, Dvele, and Mighty Buildings. On the conventional side, we build with James Hardie siding. We can walk you through which platform fits your lot and budget. See our brands for the full list.
Pricing for ADU Company in Camarillo, CA
Here are the price ranges we typically quote in Camarillo. Permit fees are not included because the city sets those, and they depend on your project’s valuation.
| Service | Typical range in Camarillo |
|---|---|
| Detached ADU (conventional build) | $280 – $380 per sq ft |
| Detached ADU (prefab, e.g. Abodu or Cover) | $240 – $340 per sq ft |
| Garage conversion to ADU (attached) | $190 – $270 per sq ft |
| Garage conversion to ADU (detached, east-side) | $210 – $290 per sq ft |
| Room addition (single story) | $220 – $320 per sq ft |
| Room addition (bathroom included) | $260 – $360 per sq ft |
| Kitchen extension | $280 – $400 per sq ft |
| Site work and foundation (detached ADU) | $12,000 – $28,000 |
| Electrical panel upgrade (if required) | $2,500 – $5,500 |
| New sewer or water line connection | $3,000 – $9,000 |
Two things push Camarillo pricing up: older panels that need an upgrade before a new unit can be connected, and east-side lots where the city wants a geotechnical check before permitting a detached structure. Whatever the number ends up being, it goes in writing before we start, and that is the number on the final invoice. The Garrison Standard says so.
Neighborhoods We Serve in Camarillo
We work across the city, including the older tracts where the ranch homes are most common and the newer developments on the east side.
- Mission Oaks
- Central Camarillo (Las Posas corridor)
- Springville
- Camarillo Heights
- Airport district
Most Camarillo calls get a site visit scheduled within a few business days, and the estimate itself is free.
Service Area – Cities Near Camarillo
We also serve nearby cities in Ventura County, including Moorpark, CA, Thousand Oaks, CA, Westlake Village, CA, and Simi Valley, CA. If you’re just outside Camarillo, call and we’ll confirm whether your address is in our service area.
Serving Camarillo, CA - Our Local Coverage Area
We’re based in the Camarillo 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 Camarillo
Yes. Every ADU, garage conversion, and room addition we build in Camarillo is permitted, inspected, and closed out the right way. We handle the paperwork with the city’s building department and keep you updated as inspections pass. Call (805) 309-3020 to talk through your project and what the permit path looks like.
Detached ADUs in Camarillo typically run $240 – $380 per square foot depending on whether you choose a prefab platform or a conventional build. Garage conversions are lower, usually $190 – $290 per square foot. Your final number comes out in a written quote before work starts. Call (805) 309-3020 for an exact quote, free of charge.
Some Camarillo neighborhoods have HOAs that require architectural review before you build an ADU or convert a garage. We provide the drawings and documentation your HOA asks for, and we coordinate with the city so the permits and the HOA approval don’t conflict. Call (805) 309-3020 and we’ll check the specifics for your street.
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 Camarillo Customers Say
"Foundation and slab poured on schedule. Crew kept the yard orderly."
- Marian J."Honest feedback on what the lot could fit. Told me up front what would fit on the lot and what the setbacks would allow."
- Rita C."Insulation, drywall, and finishes were all well done. Feels like part of the house."
- Pete O.
