MiCasa

Winwin Construction INC

License #1031942 · activelicensed since 2017Bbased in San Franciscobond $25kworkers’ comp: carriernot on Yelp

Named as contractor on 2 ADU projects in San Francisco (and 26 permits of any kind). Verify at CSLB before hiring.

ADU projects
2
1 ground-floor conversion · 1 legalization
Declared cost (middle half)
$74k–$105k
median $89k
Build time
1 year
median, issued → completed
Open · finished
0 · 2

Their ADU projects

  1. 1947 31st AveSunset/Parkside
    Converted · ground-floor conversionCompleted7 permitsdeclared $120k + other work
    filed Mar 2022permit 2 years 9 monthsbuilt 1 year 1 month · done Jan 2026
    ADU permit 202203089409 · city record · flagged ADU by SF DBI
  2. 2174 42nd AveSunset/Parkside
    Converted · legalizationCompleted1 permitdeclared $58k
    filed Oct 2021permit 1 year 1 monthbuilt 11 months · done Oct 2023
    ADU permit 202110079974 · city record · identified from permit text, two reviewers agree

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