MiCasa

Y K Mason & Sons INC

License #1001324 · activelicensed since 2015B, D39based in San Franciscobond $25kworkers’ comp: leasing firm, temp agency, etcnot on Yelp

Named as contractor on 2 ADU projects in San Francisco (and 22 permits of any kind). Verify at CSLB before hiring.

ADU projects
2
1 legalization · 1 ground-floor conversion
Declared cost (middle half)
$138k–$187k
median $162k
Build time
8 months
median, issued → completed
Open · finished
0 · 2

Their ADU projects

  1. 2375 31st AveSunset/Parkside
    Converted · legalizationCompleted7 permitsdeclared $113k
    filed Nov 2022permit 1 year 1 monthbuilt 8 months · done Aug 2024
    ADU permit 202211176787 · city record · identified from permit text, two reviewers agree
  2. 61 Desmond StVisitacion Valley
    Converted · ground-floor conversionCompleted10 permitsdeclared $212k
    filed Jan 2021permit 2 years 7 monthsbuilt 8 months · done Mar 2024
    ADU permit 202101072286 · 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.