Collora Richard Contracting Services

License #626801 · activelicensed since 1991B, C33based in San Carlosbond $25kworkers’ comp: carriernot on Yelp

Named as contractor on 1 ADU project in San Francisco (and 4 permits of any kind). Verify at CSLB before hiring.

ADU projects
1
1 garage conversion
Declared cost (middle half)
$173k
median $173k
Build time
7 months
median, issued → completed
Open · finished
0 · 1

Their ADU projects

  1. 2147 28th AveSunset/Parkside
    Converted · garage conversionCompleted4 permitsdeclared $173k
    filed Sep 2024permit 4 monthsbuilt 7 months · done Aug 2025
    ADU permit 202408309869 · 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.