Cobalt Construction Company

License #481321 · activelicensed since 1985Bbased in San Josebond $25kworkers’ comp: leasing firm, temp agency, etcYelp4.7(12 reviews)

Named as contractor on 1 ADU project in San Francisco (and 2 permits of any kind). Verify at CSLB before hiring.

ADU projects
1
1 interior conversion
Declared cost (middle half)
$223k
median $223k
Build time
5 months
median, issued → completed
Open · finished
0 · 1

Their ADU projects

  1. 353 King StMission Bay
    Converted · interior conversionCompleted7 permitsdeclared $223k
    filed Nov 2023permit 8 monthsbuilt 5 months · done Jan 2025
    ADU permit 202311291555 · city record · flagged ADU by SF DBI

Each row is one project: the ADU permit plus its revisions, sub-permits and trade permits. Dates are the city’s.