Cat Builders, Inc. Dba 1 Backflow Plumbi
Cat Builders, Inc. Dba 1 Backflow Plumbi has filed 39 building permits in San Francisco since 2018, closing 91% of 33 rated permits. 4 permits remain open.
91%
39
Construction Permits
4
Currently Open
33
Rate-Eligible
permits > 1yr old
2018–2026
Years Active
Closure rate based on permits older than 1 year. “Issued” and “Stop Work” statuses are excluded.
Performance by Permit Type
Plumbing32 rated
90.6% closed vs 81% median, 9.6 points higher
Building1 rated
100.0% closed vs 76% median, 23.8 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)
—
Open0
Closed1
Too early to rate — permits need 1 year to mature
2025
100.0%
Open1
Closed5
1 closed / 1 rated
2024
100.0%
Open0
Closed4
4 closed / 4 rated
2023
100.0%
Open0
Closed4
4 closed / 4 rated
2022
100.0%
Open0
Closed4
4 closed / 4 rated
2021
100.0%
Open0
Closed3
3 closed / 3 rated
2020
66.7%
Open2
Closed4
4 closed / 6 rated
2019
90.0%
Open1
Closed9
9 closed / 10 rated
2018
100.0%
Open0
Closed1
1 closed / 1 rated
All Permits
39 permits
| Status | Permit # | Address | Issued▼ | |||
|---|---|---|---|---|---|---|
| Closed | PW20260217661 | Plumbing | 221 Noe St, San Francisco | Feb 17, 2026<1yr | — | — |
| Closed | PW20251024113 | Plumbing | 1216 Folsom St, San Francisco | Oct 24, 2025<1yr | — | — |
| Open | PW20251022007 | Plumbing | 1216 Folsom St, San Francisco | Oct 22, 2025<1yr | — | — |
| Closed | PW20250916095 | Plumbing | 2040 Ocean Av, San Francisco | Sep 16, 2025<1yr | — | — |
| Closed | PW20250715604 | Plumbing | 492 Douglass St, San Francisco | Jul 15, 2025<1yr | — | — |
| Closed | PW20250602641 | Plumbing | 572 47th Av, San Francisco | Jun 2, 2025<1yr | — | — |
| Closed | PW20250204868 | Plumbing | 833 York St, San Francisco | Feb 4, 2025 | — | — |
| Closed | PW20241203485 | Plumbing | 630A 09th Av, San Francisco | Dec 3, 2024 | — | — |
| Closed | PW20241007164 | Plumbing | 31 Jansen St, San Francisco | Oct 7, 2024 | — | — |
| Closed | PW20240920765 | Plumbing | 1548 Stockton St, San Francisco | Sep 20, 2024 | — | — |
| Closed | PW20240814859 | Plumbing | 1371 Jackson St, San Francisco | Aug 14, 2024 | — | — |
| Closed | PW20231205057 | Plumbing | 3794 16th St, San Francisco | Dec 5, 2023 | — | — |
| Closed | PW20230901860 | Plumbing | 4117 18th St, San Francisco | Sep 1, 2023 | — | — |
| Closed | PW20230821542 | Plumbing | 115 New Montgomery St, San Francisco | Aug 21, 2023 | — | — |
| Closed | PW20230304187 | Plumbing | 457 Valley St, San Francisco | Mar 4, 2023 | — | — |
| Closed | PW20221021920 | Plumbing | 1548 Stockton St, San Francisco | Oct 21, 2022 | — | — |
| Closed | PW20221010573 | Plumbing | 1370 Marin St, San Francisco | Oct 10, 2022 | — | — |
| Closed | PW20221010572 | Plumbing | 1100 Cesar Chavez St, San Francisco | Oct 10, 2022 | — | — |
| Closed | PW20220606076 | Plumbing | 1756 Leavenworth St, San Francisco | Jun 6, 2022 | — | — |
| Closed | PW20210922988 | Plumbing | 234 Arlington St, San Francisco | Sep 22, 2021 | — | — |
| Closed | PW20210302185 | Plumbing | 101 Santa Clara Av, San Francisco | Mar 2, 2021 | — | — |
| Closed | PW20210104553 | Plumbing | 1501 Folsom St, San Francisco | Jan 4, 2021 | — | — |
| Closed | PW20201215169 | Plumbing | 115 New Montgomery St, San Francisco | Dec 15, 2020 | — | — |
| Closed | PW20201215170 | Plumbing | 470 West Portal Av, San Francisco | Dec 15, 2020 | — | — |
| Closed | PW20200614124 | Plumbing | 7032 Fulton St, San Francisco | Jun 14, 2020 | — | — |
| Open | PW20200610043 | Plumbing | 680 Beach St, San Francisco | Jun 10, 2020 | — | — |
| Open | PW20200303435 | Plumbing | 2455 Mason St, San Francisco | Mar 3, 2020 | — | — |
| Closed | PM20200124070 | Plumbing | 955 Page St, San Francisco | Jan 24, 2020 | — | — |
| Closed | PW20191114278 | Plumbing | 639 Peralta Av, San Francisco | Nov 14, 2019 | — | — |
| Closed | PP20191010205 | Plumbing | 955 Page St, San Francisco | Oct 10, 2019 | — | — |
| Closed | PP20190913365 | Plumbing | 158 Funston Av, San Francisco | Sep 13, 2019 | — | — |
| Closed | 201909131557 | otc alterations permit | 158 Funston Av, San Francisco | Sep 13, 2019 | — | $30,000 |
| Closed | PP20190731047 | Plumbing | 1234 Capitol Av, San Francisco | Jul 31, 2019 | — | — |
| Closed | PW20190521181 | Plumbing | 1029 Geary St, San Francisco | May 21, 2019 | — | — |
| Closed | PP20190425201 | Plumbing | 955 Page St, San Francisco | Apr 25, 2019 | — | — |
| Closed | PP20190409743 | Plumbing | 2249 25th Av, San Francisco | Apr 9, 2019 | — | — |
| Open | PW20190315584 | Plumbing | 1549 Ocean Av, San Francisco | Mar 15, 2019 | — | — |
| Closed | PW20190225170 | Plumbing | 721 Market St, San Francisco | Feb 25, 2019 | — | — |
| Closed | PP20181115711 | Plumbing | 154 Baker St, San Francisco | Nov 15, 2018 | — | — |