ADU Cities designs and builds custom accessory dwelling units throughout Placer County, California. Our in-house design-build team handles every step: feasibility and zoning review, architectural and structural plans, Title 24 energy documentation, permit submittal and plan-check corrections, construction, inspections, and final sign-off.
County ADU portal: Placer County ADU Approval Process & Standards — The county's official ADU approval process and standards page (updated June 2026).
Cities We Serve in Placer County
- Auburn
- Colfax
- Lincoln
- Loomis
- Rocklin
- Roseville
Don’t see your city listed? We serve all of Placer County, including unincorporated communities. Call 562.810.1965 for a free consultation.
