ADU Permits: Carson vs Long Beach
How do adu permits rules compare between Carson, CA and Long Beach, CA?
Carson and Long Beach have similar restriction levels.
Carson, CA
Los Angeles County
ADU applications in Carson are reviewed ministerially by the Community Development Department under CMC Article IX, Chapter 1. State law (Gov. Code §65852.2(b)) requires the city to approve or deny a complete application within 60 days without a public hearing.
View full Carson rules →Long Beach, CA
Los Angeles County
Long Beach processes ADU and JADU applications ministerially under Long Beach Municipal Code Section 21.45.400 and California Government Code Section 65852.2. Applications go through the Development Services Department with no public hearing or discretionary review.
View full Long Beach rules →Key Facts Comparison
| Fact | Carson | Long Beach |
|---|---|---|
| Permit issuer | Carson Community Development / Building & Safety | - |
| Review type | Ministerial (no hearing, no discretion) | - |
| Approval deadline | 60 days from complete application | - |
| Building code | 2022 CA Building Standards (Title 24 CCR) | - |
| Fire sprinklers | Not required if main dwelling lacks them | - |
| City Hall | 701 E. Carson St., Carson CA 90745 — (310) 830-7600 | - |
| Code Section | - | LBMC 21.45.400 |
| Review Type | - | Ministerial, no hearing |
| Decision Deadline | - | 60 days |
| Lead Agency | - | Development Services |
| Coastal Zone | - | CDP may be required |
Highlighted rows indicate differences between cities.
Carson FAQ
How long does Carson have to approve my ADU?
60 days from a complete application under Gov. Code §65852.2(b). If they miss the deadline, it is deemed approved.
Do I need a planning commission hearing?
No. State law requires ministerial approval — no hearings, no discretionary review.
Are fire sprinklers required for an ADU in Carson?
Only if the primary dwelling already has them. State law prohibits cities from requiring sprinklers in an ADU when the main house doesn't have them.
Long Beach FAQ
Do I need a public hearing for an ADU in Long Beach?
No. LBMC Section 21.45.400 and Cal. Gov Code 65852.2 require ministerial review by the Development Services Department without a public hearing, design review, or CEQA process.
How long does ADU plan check take in Long Beach?
The Building and Safety Bureau must approve or deny a complete application within 60 days under Cal. Gov Code 65852.2(b). Pre-approved plan sets further shorten plan check.
Do Long Beach Coastal Zone ADUs need extra permits?
Sometimes. Properties in the Coastal Zone require a Coastal Development Permit unless the project qualifies for an exemption under the certified Local Coastal Program.
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