A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateADU Company in Agoura Hills, CA
Fielding ADU Builders builds accessory dwelling units, garage conversions, and room additions in Agoura Hills. Most of the homes here were built between the late 1960s and early 1990s, on lots of half an acre or less, with stucco exteriors and attached garages that often sit at grade. That with the city’s location at the western edge of the Conejo Valley means ADU work moves through a rhythm of hillside setbacks, wildfire-zone material requirements, and a planning department that asks for more detail than most homeowners expect. Reed Calloway runs our Agoura Hills operation. Call (361) 315-4177 for a free estimate.
Why Agoura Hills Homes Are Different
Agoura Hills sits in a high-fire-risk zone, and that single fact shapes more ADU decisions here than any other variable. The Los Angeles County Fire Department’s brush-clearance rules apply to most lots north of the 101, and every new detached ADU has to be built to the current Chapter 7A wildfire-resistant standards when the parcel falls inside a Very High Fire Hazard Severity Zone. Practically, that means fiber-cement siding, dual-pane tempered windows, and ember-resistant vents on detached units – the same materials you would pick for a hillside home in Old Agoura or Morrison Ranch. It adds real cost, but it is non-negotiable with the building department.
The terrain is the second factor. Streets like Chesebro Road and Liberty Canyon Road climb quickly, and a lot of the flat, buildable ground sits in older tract neighborhoods off Kanan Road, where side yards run tight against the property line. ADU projects there routinely require a setback variance before construction can start. The city’s planning staff is methodical and expects complete drawings up front. Homeowners who have gone through one permit cycle in Agoura Hills know the difference between a contractor who files complete plans and one who leaves the permit counter to sort out his omissions. We file complete plans.
Our Main Agoura Hills Services
Most Agoura Hills homeowners call us for one of three projects: adding square footage to the existing house, converting an attached garage into a permitted living space, or building a detached ADU in the rear yard. Each one has its own Agoura Hills page below with pricing and detail.
Room Addition Contractor in Agoura Hills
A room addition in Agoura Hills usually means expanding the back of a single-story tract home, where the rear yard slopes up or down enough that foundation work becomes the largest line item. We handle grading, retaining walls, and the structural tie-in to the existing stucco shell. Permits go through the city’s building division, and hillside lots often require a soils report before the first inspection. See the full scope and local pricing on our Room Addition Contractor in Agoura Hills page.
Garage Conversion Contractor in Agoura Hills
Garage conversions are the fastest path to a living unit in Agoura Hills because the foundation and roof already exist. The work is mostly raising the slab to meet living-space elevation, replacing the overhead door with a wall system, and updating insulation and electrical to current code. Attached garages in the tract neighborhoods off Driver Avenue and Thousand Oaks Boulevard convert cleanly; older detached garages sometimes need structural reinforcement. See what a conversion costs and how long it takes on our Garage Conversion Contractor in Agoura Hills page.
ADU Builders in Agoura Hills
A detached ADU in Agoura Hills works best on a lot with flat rear yard access and enough separation from the main house to meet the city’s required setbacks. We build conventional stick-frame units with James Hardie siding, and we also install factory-built units from Abodu, Cover, and Dvele when the lot can take a crane or a delivery truck. Wildfire-zone lots push you toward non-combustible cladding and tempered glass, which we specify from the first drawing. Full pricing is on our ADU Builders in Agoura Hills 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 Agoura Hills
We build and install ADUs from Abodu, Cover, and Dvele, plus conventional framing with James Hardie siding and trim. Parts and finish materials for these systems are stocked at our Los Angeles-area yard, which keeps most Agoura Hills projects moving without supply delays. See the full list on our brands page.
Pricing for ADU Company in Agoura Hills, CA
| Service | Typical range in Agoura Hills |
|---|---|
| Detached ADU (conventional build, 400 sq ft) | $180,000 – $240,000 |
| Detached ADU (conventional build, 750 sq ft) | $260,000 – $340,000 |
| Detached ADU (prefab, 400 sq ft) | $150,000 – $210,000 |
| Garage conversion (attached, 400 sq ft) | $85,000 – $135,000 |
| Garage conversion (detached, 400 sq ft) | $110,000 – $160,000 |
| Room addition (300 sq ft, with foundation) | $110,000 – $165,000 |
| Room addition (500 sq ft, with foundation) | $175,000 – $250,000 |
| Site prep and grading | $8,000 – $22,000 |
| Fire-resistant upgrades (Chapter 7A compliance) | $12,000 – $28,000 |
| Permit and plan fees | $6,000 – $15,000 |
Two things push prices up in Agoura Hills more than anything else: hillside foundation work and wildfire-zone material upgrades. A flat lot in the tracts off Thousand Oaks Boulevard will usually land at the low end; a sloped parcel in Old Agoura or Morrison Ranch runs higher. Every Fielding ADU Builders estimate is written down before any work starts, and the number you approve is the number on the final invoice – no change orders on our own omissions.
Neighborhoods We Serve in Agoura Hills
We work across the full city, from the 101 corridor up into the hills. These are the areas we schedule most often:
- Old Agoura
- Morrison Ranch
- Liberty Canyon
- Kanan Road corridor
- Agoura Hills town center
Most Agoura Hills estimates are scheduled within a week of your call. We aim to have a written price in your hands within two business days of the site visit.
Service Area – Cities Near Agoura Hills
Fielding ADU Builders serves Agoura Hills and the neighboring Conejo Valley communities. We regularly work in Westlake Village, CA, Oak Park, CA, Calabasas, CA, and Thousand Oaks, CA. Dispatch and scheduling are coordinated from the brand’s Los Angeles office, and crews are assigned to Agoura Hills jobs locally.
Serving Agoura Hills, CA - Our Local Coverage Area
We’re based in the Agoura Hills 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 Agoura Hills
Plan on four to six months for a detached ADU permit in Agoura Hills when no variances are required. Hillside lots or projects needing a setback variance add another six to ten weeks. Plan check is thorough here, so complete drawings at first submittal are what keep a project on schedule. Call (361) 315-4177 to talk through your specific lot.
No. California law allows ADUs on single-family parcels regardless of private HOA restrictions, and Agoura Hills enforces state standards. HOAs can regulate things like paint color and fence height, but they cannot prohibit an ADU outright. We can review your HOA’s architectural guidelines before you commit to a design.
We serve the entire city of Agoura Hills plus the surrounding communities of Westlake Village, Oak Park, Calabasas, and Thousand Oaks. Our crews are familiar with the building departments in each jurisdiction. Call (361) 315-4177 to confirm coverage for your address.
Call Fielding ADU Builders at (361) 315-4177 to schedule a free estimate for your Agoura Hills project. Reed Calloway and the team will walk the property, name the price in writing, and stand behind the work for a full year under The Garrison Standard.
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 Agoura Hills Customers Say
"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."Solid job. Cabinet delivery was a week behind but they worked around it."
- Ben G.
