All CitiesAlameda County
ADU Construction in Berkeley
Berkeley strongly encourages ADUs, though design review and older housing stock require thoughtful planning and permitting.
12–15 months
Average Permit Timeline
$320,000
Starting Cost
$340,000–$470,000
Typical Project Cost
41
Projects Completed
Berkeley ADU Regulations & Requirements
Building an ADU in Berkeley requires navigating Alameda County's zoning and the city's specific standards. Our team manages the full process so your project stays compliant and on schedule.
- Design review for street-visible units
- Historic resource evaluation where applicable
- Seismic and fire upgrades may be required
- Green building and energy standards apply
Why Build With ADU.zone in Berkeley
With 41 completed projects in the area, we bring local permit knowledge, transparent pricing, and premium construction to every Berkeley ADU. From feasibility to final inspection, a dedicated project manager guides you at every step.