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SB 9 lot splits in the Coastal Zone

Near the coast? SB 9 still applies.

Does SB 9 apply in the Coastal Zone? Yes. SB 9 doesn't override the California Coastal Act, so a split near the coast also needs a coastal development permit (or an exemption). But the law says the city doesn't have to hold a public hearing on that permit (Gov. Code §66411.7(n)).

The rule

What the Coastal Zone changes

By city

Coastal cities we cover

EncinitasMuch of the city is in the Coastal Zone. The city issues an administrative coastal development permit; projects in the Coastal Commission appeal zone can be appealed to the Commission.
CarlsbadWestern Carlsbad is in the Coastal Zone. A coastal development permit is still required ($8,304 on the 2026-27 schedule), without the public hearing.
Solana BeachThe whole city is in the Coastal Zone and its coastal rules aren't certified, so the code requires a Coastal Commission permit before the city accepts the SB 9 application.

Our checker reads the Coastal Commission boundary for every address and tells you if the lot is in the Coastal Zone. Coastal Commission timing should be confirmed for each project.

Questions

Quick answers

Does SB 9 apply in the Coastal Zone?

Yes. SB 9 applies, but the Coastal Act still does too, so a coastal development permit or an exemption is needed.

Is there a public hearing for a coastal SB 9 split?

No. State law says the local agency doesn't have to hold a public hearing on the coastal development permit for an SB 9 urban lot split.

Who issues the coastal permit?

Usually the city, under its certified coastal program. In Solana Beach, whose coastal rules aren't certified, the Coastal Commission does.

How do I know if my lot is in the Coastal Zone?

Type your address into our free checker. It reads the Coastal Commission boundary and tells you.

Does your lot split?

Free check in about 30 seconds, no signup to see your answer.

More guides
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General information, not legal, tax or financial advice. State law: Cal. Gov. Code §§65852.21, 66411.7. Last reviewed October 2026.