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California / Builders / Smith & Son Construction

Licence verified, no local permit history

Smith & Son Construction

CSLB #1037951 · SMITH & SON CONSTRUCTION · Corporation

General contractor based in Antioch. Builds detached ADUs, built on site. Says it serves 3 California cities.

What the records show

Confirmed from public records
0ADU permits on file
8Years licensed
2Areas they work
ClearLicence standing

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 Most California cities do not publish the contractor's name on a building permit, so this usually reflects what a city discloses rather than what a builder has built.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.

Licence and insurance

California Contractors State License Board
Status
Licence clear
Classification
B, general building
Issued
2018-04-10 · expires 2028-04-30
Contractor bond
$25,000 AMERICAN CONTRACTORS INDEMNITY COMPANY
Workers' compensation
Covered INSURANCE COMPANY OF THE WEST
Disciplinary action
None on record
Registered address
ANTIOCH, Contra Costa County

Where they work

Confirmed from public records
CityStandingADU permitsPre-approved plans
Berkeley Licensed none no
Oakland Licensed none no

About the company

From their website

Smith & Son Construction designs and builds ADUs for Oakland and East Bay homeowners, including guest houses, rental units, and home offices. The company runs the permit, inspection, and approval process for its clients and works out of Antioch.

  • Founded and run by Lance Smith
  • Office at 1771 Vineyard Drive in Antioch
  • Takes on commercial as well as residential projects

smithandson.net

The company’s own description · licence shown on their advertising matches the state register

Works as
General contractor
Builds
detached ADUs
Handles permitting
Yes, on the owner’s behalf
Contact
(925) 387-0684 · website
Owners named
Lance Smith

BBBBuildZoomDiamond Certified / directoryLinkedIn / professional profile

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.