Tag: adu permits

All the articles with the tag "adu permits".

• ADU Soft Costs in California: Permits, Design, and Plan Check Line Items (2026)

  Updated:8 Sep, 2026

  Soft costs on California ADUs typically land around $28,000–$40,000 before construction starts. Here is every design, engineering, plan check, and fee line — with ranges by jurisdiction type.