21 Columbia Square St, San Francisco, CA, 94103
13 open permits
14 permits have been filed at 21 Columbia Square St since 2017, involving 4 applicants. 13 remain open and 1 has been closed.
14
Total Permits
13
Open
1
Closed
4
Applicants
Permit Type Breakdown
Electrical1 rated
0.0% closed vs 88% median, 87.8 points lower
Building1 rated
100.0% closed vs 76% median, 24.0 points higher
Median based on all applicants with 20+ rated permits. Only permits older than 1 year are rated.
Applicants at This Address
| Applicant | Permits | Open |
|---|---|---|
| Mayo Electric Inc | 11 | 11 |
| Thornstone Construction Group | 1 | 0 |
| Red Hawk Fire & Security Ca Llc | 1 | 1 |
| Cahill And Kavanaugh Inc * See Note* | 1 | 1 |
All Permits
14 permits
| Status | Permit # | Address | Issued▼ | ||||
|---|---|---|---|---|---|---|---|
| Open | EW202609107842 | Electrical | 21 Columbia Square St, San Francisco | Mayo Electric Inc | Sep 10, 2026<1yr | — | $750 |
| Open | EW202609107840 | Electrical | 21 Columbia Square St, San Francisco | Mayo Electric Inc | Sep 10, 2026<1yr | — | $600 |
| Open | EW202609107845 | Electrical | 21 Columbia Square St, San Francisco | Mayo Electric Inc | Sep 10, 2026<1yr | — | $750 |
| Open | EW202609107841 | Electrical | 21 Columbia Square St, San Francisco | Mayo Electric Inc | Sep 10, 2026<1yr | — | $750 |
| Open | EW202609107843 | Electrical | 21 Columbia Square St, San Francisco | Mayo Electric Inc | Sep 10, 2026<1yr | — | $750 |
| Open | EW202607236622 | Electrical | 21 Columbia Square St, San Francisco | Mayo Electric Inc | Jul 23, 2026<1yr | — | $1,000 |
| Open | PW20260624925 | Plumbing | 21 Columbia Square St, San Francisco | Cahill And Kavanaugh Inc * See Note* | Jun 24, 2026<1yr | — | — |
| Open | EW202606235828 | Electrical | 21 Columbia Square St, San Francisco | Mayo Electric Inc | Jun 23, 2026<1yr | — | $700 |
| Open | EW202606235824 | Electrical | 21 Columbia Square St, San Francisco | Mayo Electric Inc | Jun 23, 2026<1yr | — | $700 |
| Open | EW202606235826 | Electrical | 21 Columbia Square St, San Francisco | Mayo Electric Inc | Jun 23, 2026<1yr | — | $700 |
| Open | EW202606235825 | Electrical | 21 Columbia Square St, San Francisco | Mayo Electric Inc | Jun 23, 2026<1yr | — | $700 |
| Open | EW202606235829 | Electrical | 21 Columbia Square St, San Francisco | Mayo Electric Inc | Jun 23, 2026<1yr | — | $700 |
| Closed | 201904057312 | otc alterations permit | 21 Columbia Square St, San Francisco | Thornstone Construction Group | Apr 5, 2019 | — | $35,000 |
| Open | E201703233793 | Electrical | 21 Columbia Square St, San Francisco | Red Hawk Fire & Security Ca Llc | Mar 23, 2017 | — | $3,000 |