All CitiesSanta Clara County
ADU Construction in Los Altos
Los Altos offers large lots ideal for premium detached ADUs, with design review focused on preserving neighborhood character.
12–15 months
Average Permit Timeline
$360,000
Starting Cost
$380,000–$520,000
Typical Project Cost
28
Projects Completed
Los Altos ADU Regulations & Requirements
Building an ADU in Los Altos requires navigating Santa Clara 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 larger units
- Generous lot sizes allow bigger ADUs
- Tree-protection compliance required
- Floor-area-ratio limits apply
Why Build With ADU.zone in Los Altos
With 28 completed projects in the area, we bring local permit knowledge, transparent pricing, and premium construction to every Los Altos ADU. From feasibility to final inspection, a dedicated project manager guides you at every step.