ADU Construction
ADU Construction costs $150,000 to $300,000 for a typical project, averaging about $225,000. Installed pricing usually runs $250.00 to $500.00 per square foot, and scope, materials, access and local labor rates explain nearly all of the variation.
National range
$150,000 – $300,000
unit
What moves the price
- Square footage and bedroom count
- Prefab versus site-built
- Utility connections and sewer capacity
- Site access and foundation
- Design and permit fees
- Impact and school fees
- Local construction labor rates
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