Cornerstome Construction
Cornerstome Construction has filed 12 building permits in San Francisco since 2023, closing 90% of 10 rated permits. 3 permits remain open. Primarily files building permits. 9.2 points above the city median of 80.8%. Busiest year: 2024 with 6 permits.
90%
12
Construction Permits
3
Currently Open
10
Rate-Eligible
permits > 1yr old
2023–2026
Years Active
Closure rate based on permits older than 1 year. "Issued" and "Stop Work" statuses are excluded.
Performance by Permit Type
Building6 rated
83.3% closed vs 76% median, 7.2 points higher
Electrical2 rated
100.0% closed vs 88% median, 12.4 points higher
Plumbing2 rated
100.0% closed vs 81% median, 19.0 points higher
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)
—
Open2
Closed0
Too early to rate — permits need 1 year to mature
2024
83.3%
Open1
Closed5
5 closed / 6 rated
2023
100.0%
Open0
Closed4
4 closed / 4 rated
All Permits
12 permits
| Status | Permit # | Address | Issued▼ | |||
|---|---|---|---|---|---|---|
| Open | PP20260505896 | Plumbing | 875 California St, San Francisco | May 5, 2026<1yr | — | — |
| Open | E20260505769 | Electrical | 875 California St, San Francisco | May 5, 2026<1yr | — | $0 |
| Open | 202411205353 | otc alterations permit | 520 Lisbon St, San Francisco | Dec 18, 2024 | — | $5,000 |
| Closed | 202408279530 | otc alterations permit | 2640 Green St, San Francisco | Aug 27, 2024 | — | $15,000 |
| Closed | PP20240523987 | Plumbing | 3380 20th St, San Francisco | May 23, 2024 | — | — |
| Closed | E202405234567 | Electrical | 3380 20th St, San Francisco | May 23, 2024 | — | $2,000 |
| Closed | 202405232830 | otc alterations permit | 3380 20th St, San Francisco | May 23, 2024 | — | $15,000 |
| Closed | 202404180313 | otc alterations permit | 720 Gough St, San Francisco | Apr 19, 2024 | — | $600 |
| Closed | 202312293260 | otc alterations permit | 2964 Folsom St, San Francisco | Dec 29, 2023 | — | $35,000 |
| Closed | PP20231201282 | Plumbing | 2964 Folsom St, San Francisco | Dec 1, 2023 | — | — |
| Closed | E20231201933 | Electrical | 2964 Folsom St, San Francisco | Dec 1, 2023 | — | $0 |
| Closed | 202311281527 | otc alterations permit | 2964 Folsom St, San Francisco | Dec 1, 2023 | — | $26,500 |