A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateADU Company in Oxnard, CA
Fielding ADU Builders builds accessory dwelling units, garage conversions, and room additions in Oxnard. We are an independently owned member of the Garrison Partners family, founded in 2006, and we hold every Oxnard project to The Garrison Standard: a written price before work starts, permits pulled by the book, and a one-year written guarantee on the finished job. Reed Calloway leads our Oxnard crew. Call (361) 315-4177 and a live person answers, day or night.
Why Oxnard Homes Are Different
Oxnard’s housing stock runs older than most of Ventura County. A large share of single-family homes were built between the 1950s and 1980s, which means concrete slab foundations, wood framing that has settled, and electrical panels that predate modern load demands. Adding a room or converting a garage here is rarely a clean-sheet job. We regularly open walls to find wiring that needs to be brought to current code before the new space can pass inspection, and we price that discovery into the written estimate instead of surprising you with it later.
Oxnard’s coastal climate also shapes how we build. Morning fog and salt air mean exterior materials need to stand up to moisture. We specify James Hardie siding on conventional builds for exactly this reason. The soil in much of Oxnard is expansive clay, so foundation work on an attached ADU or room addition often requires a soils report and deeper footings than a homeowner expects. And because many Oxnard lots in older tracts like La Colonia and Southwinds are tighter than newer subdivisions, setback variance requests are common. We handle that paperwork as part of the permit package.
Our Main Oxnard Services
Most Oxnard homeowners call us about two things: adding square footage to the existing house, or turning unused space into living space. All three of these services get their own written price and the same one-year guarantee.
Room Addition Contractor in Oxnard
Oxnard room additions usually mean building out into a side yard or extending the back of the house. The job starts with a soils check and a foundation plan, then moves into framing, roofing, electrical, and finish work. On older Oxnard lots, we typically need a setback variance, which is the city’s written permission to build closer to the property line than the standard rule allows. We file that request with your permit application so one process covers everything. Room Addition Contractor in Oxnard
Garage Conversion Contractor in Oxnard
Oxnard garages from the 1960s and 70s make strong conversion candidates because the slab and framing are often in decent shape, but the electrical panel is usually undersized. We replace the panel, insulate and drywall the interior, add a dedicated circuit for a mini-split or wall heater, and finish the floor. The city requires a conversion to meet current habitability standards, so we bring everything to code and get it inspected before you move a bed in. Garage Conversion Contractor in Oxnard
ADU Builders in Oxnard
Backyard ADUs in Oxnard fall into two camps: prefab units from companies like Abodu, Cover, and Dvele, or conventional stick-built structures. The prefab route works well on flat Oxnard lots with clear crane or forklift access. Conventional builds make sense when the yard slopes, the lot is narrow, or you want a custom layout. We handle site prep, foundation, utility connections, and the final inspection for both. ADU Builders in Oxnard
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 Oxnard
We work with Abodu, Cover, and Dvele prefab ADU platforms, and we build conventionally with James Hardie siding. Most panel and finish parts for these systems are stocked regionally, so a typical Oxnard ADU project does not stall waiting on material. Our brands page lists the full platform lineup.
Pricing for ADU Company in Oxnard, CA
| Service | Typical range in Oxnard |
|---|---|
| Garage conversion (typical single-car) | $85,000 – $120,000 |
| Garage conversion (two-car, fully finished) | $120,000 – $180,000 |
| Detached backyard ADU (prefab, one bedroom) | $180,000 – $250,000 |
| Detached backyard ADU (conventional build, two bedroom) | $300,000 – $400,000 |
| Room addition (master suite, 300 – 400 sq ft) | $95,000 – $140,000 |
| Room addition (family room or second living area) | $110,000 – $170,000 |
| Permit fees and city plan check | $3,500 – $8,000 |
| Soils report (when required) | $2,000 – $4,500 |
| Utility connections (water, sewer, electrical trenching) | $8,000 – $20,000 |
Oxnard pricing climbs when the lot needs shoring, the panel needs a full service upgrade, or the city requires a soils report on expansive clay. Our written price is handed to you before any work starts, and the number you approve is the number on the final invoice.
Neighborhoods We Serve in Oxnard
We work across Oxnard, from older central tracts to newer subdivisions on the north and east sides. The neighborhoods below are representative, not an exhaustive list.
- La Colonia
- Southwinds
- Rio Lindo
- North Oxnard
- Hollywood Beach
Crews stage from Oxnard daily, and most estimates in city limits can be scheduled within a few business days of your call.
Service Area – Cities Near Oxnard
We serve Oxnard and the surrounding Ventura County communities. If you are in Port Hueneme, CA, Camarillo, CA, Somis, CA, or Santa Paula, CA, the same crew and the same written-price policy apply.
Serving Oxnard, CA - Our Local Coverage Area
We’re based in the Oxnard 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 Oxnard
We schedule the first site visit within a few business days of your call. The permit package takes longer than the construction start; Oxnard plan review on an ADU or addition typically runs two to five months depending on the project and whether a variance is required. After permits are issued, a garage conversion runs six to ten weeks. Call (361) 315-4177 to get a written estimate and a realistic timeline.
Yes, if the property is in a planned development with an HOA. State law limits what an HOA can restrict on ADUs, but setback, design-review, and parking rules still apply. We review the CC&Rs before we write the estimate so the price accounts for any architectural-review requirement. Call (361) 315-4177 to walk through your specific property.
No. The Garrison Standard means the written price before any work starts is the price. If we open a wall and find something that changes the scope, we stop, show you what we found, and put the change in writing before proceeding. We do not move the price at the door. Call (361) 315-4177 for a free estimate on your Oxnard project.
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 Oxnard Customers Say
"Garage conversion with a new bath and kitchenette. Permit was handled by them. Inspection passed first time."
- Sheila B."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."Clear price breakdown. Change orders were all in writing."
- Hal P.
