CALABASAS, CA · ADU CONSTRUCTION
ADU Builder in Calabasas
— From Permit to Keys
Backyard ADUs and garage conversions, drawn by our in-house design team to Calabasas' objective standards and built by one licensed family crew. California law gives the city 60 days to act on a complete application. We draw plans that don't give it a reason to say no.
Got it — we’ll call you shortly.
A member of the Mayer’s team will reach out personally. If it’s urgent, call (888) 394-4041.
Verified where it counts
Licensed California general contractor, CA #1063024 (verify with the state). Family-owned since 2009.
Appliances & surfaces we build with
The 60-day rule — and why Calabasas ADUs still get stuck
State law makes ADU review ministerial: no public hearing, a decision on a complete application within 60 days, measured against the city's objective standards. But "objective" does not mean "easy."
Calabasas applies detailed standards (height, setbacks, and materials in some overlay areas) through its own Building & Safety desk and SmartGov portal. Projects stall in correction cycles when plans miss a standard. The fix is boring and unbeatable: drawings done right the first time by an in-house design team, submitted complete.
- Complete SmartGov package, first time
- 60-day state clock on complete apps
- Garage conversions welcome
Garage conversions — usually the fastest path
The existing footprint and slab make conversions the quickest, simplest route to a legal unit. What decides candidacy is ceiling height, setbacks, utilities, and the slab's condition — we check all four at the free site visit and tell you straight if your garage is a good candidate, or if a backyard unit serves you better.
Built to the code that governs these hillsides
Much of Calabasas sits in a Very High Fire Hazard Severity Zone, so detached ADUs typically require ignition-resistant construction under Chapter 7A (materials, vents, roofing) plus fire-department review. Most ADU outfits discover this at plan check. Our designers draw to it from the first sketch, because a corrected plan is a delayed plan.
What Calabasas homeowners actually build
Parents next door
The multigenerational unit: single-level, curbless bath, its own entrance. The most common reason our clients build.
The long-term rental
A legal unit on the flatter streets around Calabasas Park, where level lots keep foundations and access simple.
The hillside lot
Slope changes foundations, access, and plan-check scrutiny under the city's hillside rules. Some hillside lots are excellent ADU sites and some are not. We tell you which you have before you commit to drawings.
The Oaks and the gated streets
Where a committee and the city both have standards. One team managing gate rules, insurance certificates and the city counter at once.
A licensed general contractor, not an ADU brand
A wave of ADU-only websites has appeared across Los Angeles. Many are marketing brands that resell your project to whoever is available. Mayer's Construction is a licensed California general contractor (CA License #1063024), family-owned since 2009, with our own design team, our own crew, and our own material sourcing.
The person who draws your ADU and the crew who pours its foundation work for the same family company you called. The Bay Area's 5.0-star design-build team, now serving Calabasas.
How it works
- 01
Call or send the form
A real person calls you back in minutes during business hours.
- 02
Free site visit
Setbacks, utilities, slope, garage candidacy — we tell you what your lot supports.
- 03
Design & city submittal
A complete SmartGov package drawn to the objective standards; we manage any corrections.
- 04
Build
One crew, a written schedule, utilities coordinated, final inspection through keys.
Questions Calabasas homeowners ask
How long does ADU approval take in Calabasas?
Can I convert my garage into an ADU in Calabasas?
Does Calabasas design review apply to ADUs?
Do fire-zone building rules affect my ADU?
Can I rent out my ADU, or is it just for family?
Do hillside lots work for ADUs?
Why hire a licensed design-build contractor instead of an ADU company I found online?
In our clients’ words
Rated 5.0 on Google
They worked hard to capture our vision, and if we ever ran into any issues, they worked with us to figure them out. We would happily use them again for another project.
High-quality materials, outstanding craftsmanship, and a very professional team. The entire project was well organized and completed on time, with great attention to detail.
Impeccable workmanship. Mike was a stickler for quality — insisting the tiles have mitred corners, even if I didn’t ask for it. Great communications, every step of the way.
Los Angeles County
More in Calabasas
ADU & Garage Conversion nearby
Let's plan your Calabasas ADU.
Bring us the lot, the garage, or just the idea. The site visit is free either way.