ADU Impact Fees: Berkeley vs Castro Valley

Are Berkeley ADUs charged impact fees?

ADUs under 750 sq ft are exempt from all city impact fees under California Government Code 65852.2(f)(3). This includes Berkeley's Housing Trust Fund Fee, Affordable Housing Mitigation Fee, and BUSD school fees. ADUs 750 sq ft and larger pay proportional fees.

What does a Berkeley ADU cost to permit?

Permit and plan-check fees typically run $4,000-$8,000 - among the highest in the East Bay due to Berkeley's detailed review including seismic, energy, accessibility, and historic resource review. ADUs under 750 sq ft skip all impact fees under state law.

Does Berkeley charge BUSD school fees on an ADU?

Only on ADUs 750 sq ft or larger, and even then proportional to the primary dwelling's size. Berkeley Unified School District's current rate is approximately $5.17/sq ft of residential. The state ADU fee exemption preempts collection on sub-750 sq ft units.