California Building Permit Timelines & Delays
California's housing-approval process is among the most studied and most criticized in the nation. Independent research points less to the plan-review counter than to discretionary review and litigation: under the California Environmental Quality Act (CEQA), any party can sue to block an approved project, and a typical suit runs four to five years including appeals.
California permitting, the figures
The key published figures for this jurisdiction — each cited to its official source.
What the data shows
California's approval delays concentrate in discretionary review and CEQA litigation rather than plan check — a typical CEQA lawsuit runs four to five years including appeals (Holland & Knight, 2023).
Where SB 35 streamlining applied, median approval time in Los Angeles fell to 2.7 months, down from roughly seven months for comparable earlier projects (NYU Furman Center / Pew, 2024).
CEQA lawsuits filed in 2020 sought to block roughly 48,000 approved housing units — just under half of California's annual production — and a typical suit runs four to five years including appeals (Holland & Knight / Chapman University, 2023).
Accessory dwelling units took 260 days to permit inside Los Angeles County's Coastal Zone versus 147 days outside it (Terner Center, 2024).
Most delay accumulates before technical review
The data points to the same lever everywhere: most delay accumulates before technical review, in completeness and resubmittal cycles. Permittable's Permit Review Diagnostic checks your plans against applicable codes and common reviewer issues before you submit — so your package is more likely to clear on the first pass.
California permitting: FAQ
How long do housing approvals take in California?
There is no single number — it varies enormously by project, city, and pathway, which is the core problem. Discretionary review and CEQA litigation can stretch a contested project for years, while streamlined pathways are far faster: under SB 35, Los Angeles approvals cleared in a median of 2.7 months, versus roughly seven months for comparable earlier projects (NYU Furman Center / Pew, 2024).
Why does CEQA add so much delay?
The California Environmental Quality Act lets any party sue to block an approved project, and those suits typically take four to five years including appeals (Holland & Knight, 2023). In 2020, CEQA lawsuits targeted roughly 48,000 housing units — just under half the state's annual production (Chapman University, 2023). That litigation risk, more than environmental review itself, drove the 2025 reforms.
Did the 2025 CEQA reforms change anything?
Yes. AB 130 and SB 131 (signed June 2025) created broad CEQA exemptions for qualifying infill housing and tightened Permit Streamlining Act deadlines. For projects certified for judicial streamlining, any CEQA lawsuit must now be resolved in about 270 days rather than the prior multi-year timeline (AB 130 / SB 131, 2025).
Has streamlining actually sped things up?
Yes, where it applies. Under SB 35, median approval time fell to 2.7 months in Los Angeles and about four months in San Francisco, versus baselines of roughly seven months and “more than a year” (NYU Furman Center / Pew, 2024). Separately, AB 2234 now requires local agencies to act on post-entitlement permits within 30 to 60 business days of a complete application.
Sources
All figures on this page are drawn from California housing entitlement & permitting timeline research — Terner Center for Housing Innovation, UC Berkeley. Peer-reviewed analyses of California entitlement and permitting durations, including a study of 2,474 San Francisco developments and evaluations of SB 35 streamlining outcomes (with NYU Furman Center / Pew). ternercenter.berkeley.edu. Specific tables, reports, and pages are cited inline with each figure above.
Figures come from independent studies with different scopes, years, and methods, so they are not directly comparable: the SB 35 figures reflect small samples of mostly affordable projects from 2018–2021, and the CEQA-litigation figures count lawsuits rather than all projects. California's HCD publishes permit and entitlement counts for RHNA progress but does not publish a standardized statewide approval-duration figure.