Mayfair Builder Inc
Mayfair Builder Inc has filed 20 building permits in San Francisco since 2021, closing 53% of 15 rated permits. 8 permits remain open.
53%
20
Construction Permits
8
Currently Open
15
Rate-Eligible
permits > 1yr old
2021–2026
Years Active
Closure rate based on permits older than 1 year. “Issued” and “Stop Work” statuses are excluded.
Performance by Permit Type
Plumbing6 rated
50.0% closed vs 81% median, 31.0 points lower
Electrical5 rated
60.0% closed vs 88% median, 27.5 points lower
Building4 rated
50.0% closed vs 76% median, 26.2 points lower
Median based on all applicants with 20+ rated permits in each category. Only permits older than 1 year are rated.
Year-by-Year Summary
2026(YTD)
—
Open1
Closed0
Too early to rate — permits need 1 year to mature
2025
—
Open0
Closed4
Too early to rate — permits need 1 year to mature
2023
25.0%
Open6
Closed2
2 closed / 8 rated
2021
85.7%
Open1
Closed6
6 closed / 7 rated
All Permits
20 permits
| Status | Permit # | Address | Issued▼ | |||
|---|---|---|---|---|---|---|
| Open | PW20260120005 | Plumbing | 623 09th Av, San Francisco | Jan 20, 2026<1yr | — | — |
| Closed | PM20251030555 | Plumbing | 1734 38th Av, San Francisco | Oct 30, 2025<1yr | — | — |
| Closed | PW20251028168 | Plumbing | 1734 38th Av, San Francisco | Oct 28, 2025<1yr | — | — |
| Closed | PP20250821263 | Plumbing | 1734 38th Av, San Francisco | Aug 21, 2025<1yr | — | — |
| Closed | E202508214952 | Electrical | 1734 38th Av, San Francisco | Aug 21, 2025<1yr | — | $145,000 |
| Closed | EW202309224014 | Electrical | 1309 Powell St, San Francisco | Sep 22, 2023 | — | $1,500 |
| Closed | PW20230621964 | Plumbing | 309A Sawyer St, San Francisco | Jun 21, 2023 | — | — |
| Open | PP20230130280 | Plumbing | 1936 Vicente St, San Francisco | Jan 30, 2023 | — | — |
| Open | E202301304809 | Electrical | 1936 Vicente St, San Francisco | Jan 30, 2023 | — | $0 |
| Open | 202301301016 | otc alterations permit | 1936 Vicente St, San Francisco | Jan 30, 2023 | — | $12,000 |
| Open | PP20230118093 | Plumbing | 1936 Vicente St, San Francisco | Jan 18, 2023 | — | — |
| Open | E202301184601 | Electrical | 1936 Vicente St, San Francisco | Jan 18, 2023 | — | $0 |
| Open | 202301180357 | otc alterations permit | 1936 Vicente St, San Francisco | Jan 18, 2023 | — | $32,000 |
| Open | PP20210915326 | Plumbing | 2082 36th Av, San Francisco | Sep 15, 2021 | — | — |
| Closed | E202109155625 | Electrical | 2082 36th Av, San Francisco | Sep 15, 2021 | — | $0 |
| Closed | 202109158481 | otc alterations permit | 2082 36th Av, San Francisco | Sep 15, 2021 | — | $12,000 |
| Closed | PP20210412233 | Plumbing | 70 Byxbee St, San Francisco | Apr 12, 2021 | — | — |
| Closed | PP20210325986 | Plumbing | 70 Byxbee St, San Francisco | Mar 26, 2021 | — | — |
| Closed | E202103252294 | Electrical | 70 Byxbee St, San Francisco | Mar 26, 2021 | — | $0 |
| Closed | 202103257271 | otc alterations permit | 70 Byxbee St, San Francisco | Mar 25, 2021 | — | $6,000 |