Woo John Construction Corporation

License #765131 · activelicensed since 1999Bbased in San Franciscobond $25kworkers’ comp: carriernot on Yelp

Named as contractor on 1 ADU project in San Francisco (and 33 permits of any kind). Verify at CSLB before hiring.

ADU projects
1
1 ground-floor conversion
Declared cost (middle half)
$140k
median $140k
Build time
1 year 7 months
median, issued → completed
Open · finished
0 · 1

Their ADU projects

  1. 4710A Irving StSunset/Parkside
    Converted · ground-floor conversionCompleted6 permitsdeclared $140k
    filed Aug 2024permit 4 monthsbuilt 1 year 7 months · done Jul 2026
    ADU permit 202407237037 · 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.