ADU Renovation in Malibu by Katz Design Builders

Building an ADU in Malibu means working with some of the most demanding conditions in California
— coastal regulations, fire-zone requirements, and challenging hillside and beachfront lots. It
takes a builder who can navigate all of it. Katz Design & Builders is a licensed design-build firm
(California CSLB #1089060) that designs and builds ADUs and guest houses across Malibu.

Why Malibu homeowners choose Katz Design & Builders

We navigate Malibu’s permitting. Coastal requirements, fire-zone codes, and
hillside conditions all shape an ADU here. We prepare plans and manage approvals.
We build for the environment. Coastal exposure and fire-hardening standards call
for the right materials and construction. We build to them.
Licensed, insured, accountable. CSLB #1089060, fully insured, fixed price, one
project manager.
Design-build under one roof. Design, budget, and construction from one team.

Our Malibu ADU services

Detached ADUs & guest houses

Standalone units designed to coastal, fire, and zoning requirements and the character of the
property.

Garage conversions

Convert existing structures into legal living space, done to code.

Attached ADUs & additions

Add a connected unit or expand the home where a detached build isn’t feasible.

Hillside & beachfront builds

We plan around the access, drainage, and structural realities of Malibu’s demanding lots.

What to expect: our process

Consultation & site visit — we assess your lot and goals and talk
budget honestly.
Design & fixed proposal — drawings, selections, itemized price and
schedule before construction.
Permits & approvals — we manage coastal, city, and fire requirements.
Build — one project manager, a clean site, updates to completion.