ADU Construction in Malibu
Malibu ADUs with coastal and building approvals mapped out early, corrosion-proof fire-rated materials and drawings prepared by Fernhill Builders.
"Does a backyard unit here need coastal approval on top of the building permit?" We answer that from the parcel records on a first Malibu visit. A lot inside the state coastal zone may need a coastal development permit, or a written exemption, alongside building review, and the City of Malibu handles both. Knowing it early lets the schedule list each approval in the order it will happen.
Materials for damp air and embers
Malibu parcels can face marine air and the wildfire code at once, and each exterior part has to answer both. We side the unit in fiber cement or cement plaster, fasten it with stainless or hot-dip galvanized steel and fit listed vents with corrosion-resistant mesh. Windows are tempered dual-pane in fiberglass frames, which neither rust nor swell. On a parcel inside the mapped hazard zone these choices are required. Outside it they still repay the effort in fewer repaints and fewer corroded fasteners to replace.
Two reviews, one set of drawings
When a parcel needs both coastal and building approval, the drawings have to tell each reviewer the same story. We prepare one site plan showing the unit, the lot lines, any required setbacks and the fire department access, then use it for both submittals. Comments from either review get answered in writing, and any change made for one is carried into the other before resubmittal. You see every letter, so it is always clear which approval is pending and what the next filing needs.
ADU Construction in Malibu: common questions
Yes, when the Malibu parcel is inside the mapped zone. Siding, vents, eaves, glazing and a Class A roof all follow the wildfire chapter, and the fire review may add access, water supply or sprinkler conditions. We look up the address first, so the exterior is drawn once to the rules that apply.
The Malibu site plan does double duty, serving the building review and any coastal application, while the structural sheet shows how the frame resists wind and shaking. The package is sized for a one-story unit that qualifies under the cap, while plans for anything larger are priced on a separate quote.
Often, yes, though a lot in the coastal zone may need a second approval covering the pair. Filing the rebuild and the unit together keeps both drawing sets consistent and can shorten review. We check the parcel and the rebuild route, then lay out which approvals come first.
ADU Construction in other cities
More work we do in Malibu
Plan your project in Malibu
Tell us about the house and the adu construction work. We reply about a walk-through and a written scope.