Permitting
Coastal Development Permits in Southern California
In several of the markets we work in, the coastal permit is not a step in the schedule. It is the schedule. Knowing that at the start changes how a project is planned and financed.
April 8, 2026 · By Plantek West
Where it applies
The coastal zone is a mapped boundary, not a distance from the water, and it reaches surprisingly far inland in some places while excluding blocks that feel coastal in others. Venice, Malibu, Newport Beach, Seal Beach, much of Huntington Beach and parts of Santa Monica and Long Beach are routinely affected.
Some cities have a certified Local Coastal Program and issue the permit themselves. Others route through the Coastal Commission. The difference in processing time is substantial, and it is the first thing to establish.
What it adds
Expect additional analysis of public view corridors, public access, biological resources, hazards and drainage. Expect a hearing in many cases. Expect the process to run months rather than weeks, and expect consultant fees that can exceed the building permit fees.
Designing for coastal review from the start
Projects that respect view corridors, keep massing within the established pattern and address drainage and hazard honestly move through review. Projects that maximise every dimension and hope for the best generate conditions, appeals and redesigns. The economics favour designing with the policy rather than against it.
Questions on this topic
Can an ADU require a coastal permit?
Yes, in the coastal zone it commonly does, and that process frequently takes longer than the building permit.
How do I know if my property is in the coastal zone?
It is a mapped determination against your parcel. We check it as the first step of feasibility for any address near the coast.
Keep reading
ADU
What an ADU really costs in Southern California in 2026
Detached, attached and garage conversion cost ranges, plus the four site variables that decide where inside those ranges your project lands.
ADU
ADU rules city by city: how LA and Orange County departments differ
State law sets the floor for ADUs. What still varies is coastal review, objective design standards, fee schedules and how many correction cycles a department runs.
Permitting
What plan check corrections actually cost you
Permit fees are published. Correction cycles are not, and they are usually the larger number. Here is what triggers them and how to avoid most of them.
