Tag: adu cost

All the articles with the tag "adu cost".

• Modular vs Site-Built ADU Cost in California: 2026 Line-Item Comparison

  Updated:5 Sep, 2026

  Same 800 sq ft detached ADU, two delivery methods. Site-built baseline $320,000. Modular lands near $288,000 after crane and transport — here is where each phase saves or grows.