ADU Permit Requirements in Temple City, CA
Temple City is an incorporated LA County contract city that issues building permits under its own name through the City Community Development Department's Building & Safety Division at City Hall. Day-to-day building official, plan check, inspection, and permit-counter services are contracted to a private firm, Transtech Engineers, Inc., which has provided these services since 2012, so inspections are contracted but the AHJ is the city. Plan check and permit fees (except encroachment) are set at 120 percent of the County of Los Angeles fee schedule and the city directs applicants to LA County Public Works for the base amounts. California enforces statewide Title 24, currently the 2025 California Residential Code (based on the 2024 IRC) effective January 1, 2026.
By Joey, Founder · Last verified June 4, 2026 · How we research →
When you need a ADU permit
CA (ZIP 91780), an accessory dwelling unit (ADU) or junior ADU is streamlined under California state ADU law (administered by the City of Temple City Building & Safety Division) and built to the 2024 IRC (2025 California Residential Code) plus Title 24. State law sets 4-foot side and rear setbacks, a 60-day approval timeline, and fee reductions for small units. Plans are submitted electronically via e-PlanSoft, and plan check and permit fees are set at 120 percent of the Los Angeles County fee schedule.
ADU Permit Costs: Temple City vs. Nearby
| City | Estimated Fee |
|---|---|
| Temple City | N/A |
| Los Angeles | $750 – $7,500 |
| Sacramento County | $750 – $7,500 |
| San Diego | $750 – $7,500 |
Fees shown are estimates based on local building code data. Actual fees may vary based on project scope and valuation. See all Temple City permit costs →
Zoning Considerations
ADU regulations vary dramatically by state and city. Many states (CA, OR, WA) have preemption laws that override local zoning restrictions. Check both state law and local zoning before designing.
Estimated Project Timeline
Here's a typical timeline for a adu project:
Timeline is based on the typical about 9 weeks permit processing time. Actual timelines vary by project complexity, completeness of application, and current department workload.
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Frequently Asked Questions
Contact the building department for current ADU permit fee information. Fees typically vary based on project scope and valuation.
It depends on the specifics of your project. Some smaller ADU projects may be exempt from permit requirements, while larger ones typically require a permit. Use our free lookup tool to check your specific situation.
Working without a required permit can result in fines, stop-work orders, being required to remove completed work, and complications when selling your home. It's always best to check first.
Typical approval time for ADU permits is about 9 weeks. More complex projects may take longer if plan review is required.
Learn More About ADU Permits
Read our complete guide covering permit requirements, costs, common exemptions, and the application process.
Read ADU Guide →