California / Builders / Built Icon
Licence verified, no local permit history
CSLB #1060193 · BUILT ICON · Corporation
General contractor based in Clayton. Builds detached ADUs, built both on site and in a factory. Says it serves 3 California cities.
No ADU permits are on file under this licence in the cities we cover. Most California cities do not publish the contractor's name on a building permit, so this usually reflects what a city discloses rather than what a builder has built. Ask them directly for recent addresses and permit numbers you can look up.
| City | Standing | ADU permits | Pre-approved plans |
|---|---|---|---|
| Concord | Licensed | none | no |
| San Jose | Licensed | none | no |
| Santa Clara | Licensed | none | no |
Built ICON builds ADUs, additions, and new construction in the East Bay and Silicon Valley, and installs helical screw pile foundations as an alternative to poured concrete. The company also works with mass timber structural framing.
The company’s own description · licence shown on their advertising matches the state register
| Model | Sq ft | Bed | Bath | From |
|---|---|---|---|---|
| Mass Timber Panelized ADU (panelized structural package) | ||||
| 120 sq ft ADU model | 120 |
Starting prices for a base model. They rarely include site work, utility connections, or city fees. Get a written quote against a drawing set before comparing builders on price.
ADU Standards does not issue zoning determinations and does not endorse contractors. Licence details are from the California Contractors State License Board, checked 2026-08-15. A city that pre-approves a plan has vetted the plan, not the builder. Always confirm licence standing at cslb.ca.gov before you sign anything.