Coastal Development Permit (CDP)
Permit required for construction inside California's Coastal Zone, issued by the city or the California Coastal Commission.
Any construction inside the Coastal Zone — generally west of Lincoln Blvd in Venice, the entire Marina Peninsula, Pacific Palisades, and similar coastal strips — requires a Coastal Development Permit on top of the standard building permit. Inside the City of LA, ministerial CDPs are issued by LADBS West LA; appealable CDPs go to the California Coastal Commission.
A CDP review adds 8–16 weeks to the standard timeline and may require an environmental study if the lot is undeveloped or near sensitive habitat. Most ADUs in the Coastal Zone qualify for the streamlined Coastal Exclusion if they meet specific size and height limits.
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FAQ — Coastal Development Permit (CDP)
What does "Coastal Development Permit (CDP)" mean in plain English?
Permit required for construction inside California's Coastal Zone, issued by the city or the California Coastal Commission.
Why does Coastal Development Permit (CDP) matter for a California ADU or remodel?
Coastal Development Permit (CDP) comes up in the zoning and land-use side of nearly every Greater LA and Bay Area project we touch. Any construction inside the Coastal Zone — generally west of Lincoln Blvd in Venice, the entire Marina Peninsula, Pacific Palisades, and similar coastal strips — requires a Coastal Development Permit on top of the standard building permit. Getting it right at design saves rework later — getting it wrong is one of the most common reasons permits stall.
Where will I see Coastal Development Permit (CDP) on my own project?
Most owners run into Coastal Development Permit (CDP) during the design or plan-check phase. Your project manager flags it on the schedule, walks you through what the city expects, and confirms documentation is in place before the inspection that depends on it.
Does Coastal Development Permit (CDP) cost extra?
Sometimes — depends on whether it adds scope (a report, a structural detail, a fee) or just a paperwork step. Anything cost-impacting is itemized in your contract or change order, never buried in the invoice.
Who at Alpha Dream handles Coastal Development Permit (CDP)?
The project architect owns design-level decisions; the permit runner owns city interactions; the project manager owns field execution. You always know who to ask.