







A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateFast, Reliable Garage Conversion Contractor Across Malibu
Garage conversions in Malibu run $120,000 to $240,000 before permit fees, and the Coastal Development Permit path is the single biggest variable in both cost and calendar. If you’re off Pacific Coast Highway with a garage that’s become a storage locker for surfboards and old furniture, converting it to a bedroom, guest suite, or ADU is usually smarter than building new. We’re Fielding ADU Builders, and our Garage Conversion Contractor team has walked enough Malibu properties to know which garages convert cleanly and which ones fight back. Call (361) 315-4177 to get a written price before any work starts.
Why Fielding ADU Builders Is Malibu’s Preferred Garage Conversion Contractor Company

Most Malibu garages sit inside the Coastal Zone, which means a garage-to-living-space conversion usually requires a Coastal Development Permit on top of standard ADU permits. City plan checks scrutinize garage-use changes because parking in the Civic Center and Point Dume areas is already constrained. We know this because we’ve worked through it. Not once, not twice. Reed Calloway, who leads Fielding ADU Builders, has built our process around the Malibu permit sequence, not around optimistic schedules that fall apart at plan check. Our crews arrive in uniform, background-checked, and they know the difference between a Colonial-style ranch in Point Dume and a modernist box on Carbon Beach. Dispatch and scheduling are coordinated from our Los Angeles office; crews serve Malibu locally.
The Garrison Standard has been our operating rule since 2006: show up in the window, price in writing, build by the book, leave it clean, stand behind it for a year. Every project gets a written price before a single nail is driven, and every job carries a 365-Day Done Right Promise in writing. If something fails inside that year, we come back and make it right at no charge. That’s not a slogan. It’s the document you sign before we start.
Garage to Bedroom Conversion in Malibu
A Garage to Bedroom Conversion in Malibu usually runs $120,000 to $180,000 depending on whether you’re adding a bathroom, and the Coastal Development Permit often takes three to five months before we even break ground. The work involves leveling or building up the slab, framing interior walls, insulating, running electrical and plumbing, egress windows, drywall, and finish work. If your garage sits on a slope pitching toward the street, plan for slab leveling or a raised wood subfloor before framing can pass inspection. That’s not an upgrade; it’s the part most bids leave out and most change orders add back in.
Slab Work and Slope Correction
Malibu lots pitch. Sometimes gently, sometimes dramatically. A garage slab that’s an inch out of level is fine for parked cars and terrible for a bedroom floor. We check this on the first visit, not after demo starts. If the slab needs correction, the price goes in writing before we touch it.
Egress, Insulation, and Habitable Space Rules
A bedroom needs a proper egress window, minimum ceiling height, insulation that meets California energy code, and ventilation. Garage conversions that skip egress don’t get signed off. We build it to pass inspection the first time, because a failed final inspection is a schedule delay we don’t want and you don’t need.
Garage Conversion ADU in Malibu

A Garage Conversion ADU in Malibu typically runs $160,000 to $240,000 and gives you a legal rental unit or family suite, but only if the parking replacement works. Losing the garage’s covered parking can halt permitting in constrained areas like the Civic Center and Point Dume, where the city wants to see two compliant off-street spaces remain. This is where most Malibu ADU projects stall: not the structure, the parking. We map parking replacement before we draw plans, because a beautiful ADU that can’t get permitted is just an expensive storage room.
Prefab and Modular Options
Some Malibu garages are better suited to a prefab or modular ADU than a stick-built conversion. We work with Abodu, Cover, Dvele, and Mighty Buildings, and we’ll tell you honestly if a panelized system saves you months on a Malibu lot versus conventional framing. The permit path is the same; the build sequence is not. We match the method to your lot, your budget, and your parking constraints.
Trusted Brands We Service in Malibu
We install and integrate James Hardie siding, Abodu prefab ADU systems, and Cover panelized builds for Malibu garage conversions, and we keep our material channels local so we’re not waiting on a truck from out of state. This matters when the marine layer rolls in and you want the shell weathertight before the next rain. We match the right build method to your lot and budget, whether that’s conventional framing or a factory-built system that arrives on a truck.
Common Garage Conversion Contractor Problems We See in Malibu Homes
- Skipping the Coastal Development Permit. We’ve watched homeowners treat a garage conversion as “just inside the existing shell” and skip the CDP, then stall at plan check for months. The shell isn’t the issue; the use change is.
- Assuming a flat slab. Malibu properties often slope toward the street. A slab that’s fine for a car is not fine for a bedroom, and leveling it before rough-ins changes both cost and calendar.
- Ignoring parking replacement. Converting the garage means losing the covered parking space. If you can’t show two compliant spaces on the driveway, the permit stalls. We map this before we draw plans.
- Treating the garage as a standalone project. A garage conversion has to tie into the existing house: roofline, siding, electrical panel capacity, drainage. We look at the whole property, not just the four garage walls.
Pricing for Garage Conversion Contractor in Malibu, CA
A garage conversion in Malibu runs $120,000 to $240,000 before permit fees, and the three cost drivers are the Coastal Development Permit path (three to five months of plan check), parking replacement (sometimes requires driveway widening or reconfiguration), and slab condition (leveling a sloped Malibu garage adds $8,000 to $18,000 depending on slope severity). Bathrooms add $25,000 to $45,000. Kitchens add more. We don’t give ballpark numbers that drift once work starts. We put the price in writing before any work begins, and that’s the number on the final invoice. Call (361) 315-4177 for a free estimate.
We Also Serve Cities Near Malibu
Our team regularly works in Agoura Hills, Westlake Village, Thousand Oaks, and Calabasas, handling garage conversions on similar slopes and with similar permit paths. If you’re in one of those cities and want the same written-price-first process, Garage Conversion Contractor in Malibu standards apply no matter where your property sits.
Serving Malibu, CA - Our Local Coverage Area
We’re based in the Malibu 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 Garage Conversion Contractor in Malibu
Yes, most Malibu garages inside the Coastal Zone require a Coastal Development Permit on top of standard ADU permits, and plan check typically runs three to five months before we can break ground. The trigger is the use change: a garage that becomes living space is a different land use, and the Coastal Commission’s parking and density reviews apply. Call (361) 315-4177 and we’ll walk you through whether your specific parcel needs one.
Yes, converting the garage eliminates the covered parking space, and in Malibu that can block the permit unless you demonstrate two compliant off-street spaces elsewhere on the property. We map parking replacement before we draw plans, because a stalled permit costs you months and money. Call (361) 315-4177 to get your parking layout checked before you commit.
The sequence is: slab assessment and leveling or raised wood subfloor, framing, rough electrical and plumbing, insulation, drywall, egress windows, finish work, and final inspection. On a sloped Malibu lot, the slab work comes first and it’s the part most bids leave out. We sequence it this way because inspection sequence matters: rough-ins can’t pass on an unlevel slab.
Yes, but only for certain garage types and lot configurations. The Coastal Development Permit path is the same; the build sequence changes because the module arrives on a truck and gets set in place. We’ll tell you honestly if a prefab system saves you months on your specific Malibu lot or if conventional framing is faster. Call (361) 315-4177 for a straight answer on your property.
Your price changes only if you change the scope, or if we uncover something that couldn’t be seen before demo, like a slab that’s structurally unsound or a sewer line that needs relocation. We put the price in writing before any work starts, and the number you approve on day one is the number on the final invoice. Call (361) 315-4177 to get your written price.
Ready to scope your project with a Malibu Room Addition Contractor? Call (361) 315-4177 to schedule a free estimate. Reed and our team will inspect your garage, check the slab, map the parking, and walk you through the Coastal Development Permit path. Price in writing, before any work starts. That’s how we build.
Written by Reed Calloway, Owner at Fielding ADU Builders, building to The Garrison Standard since 2006.



