Backflow Prevention Specialists Inc
Backflow Prevention Specialists Inc has filed 233 building permits in San Francisco since 2016, closing 99% of 211 rated permits. 6 permits remain open. Primarily files plumbing permits. 17.8 points above the city median of 80.8%. Busiest year: 2019 with 36 permits.
99%
233
Construction Permits
6
Currently Open
211
Rate-Eligible
permits > 1yr old
2016–2026
Years Active
Closure rate based on permits older than 1 year. "Issued" and "Stop Work" statuses are excluded.
Performance by Permit Type
Plumbing211 rated
98.6% closed vs 81% median, 17.6 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
Closed7
Too early to rate — permits need 1 year to mature
2025
100.0%
Open1
Closed20
8 closed / 8 rated
2024
100.0%
Open0
Closed17
17 closed / 17 rated
2023
100.0%
Open0
Closed21
21 closed / 21 rated
2022
100.0%
Open0
Closed19
19 closed / 19 rated
2021
100.0%
Open0
Closed24
24 closed / 24 rated
2020
100.0%
Open0
Closed25
25 closed / 25 rated
2019
97.2%
Open1
Closed35
35 closed / 36 rated
2018
100.0%
Open0
Closed25
25 closed / 25 rated
2017
92.3%
Open2
Closed24
24 closed / 26 rated
2016
100.0%
Open0
Closed10
10 closed / 10 rated
All Permits
233 permits
| Status | Permit # | Address | Issued▼ | |||
|---|---|---|---|---|---|---|
| Open | PW20260605451 | Plumbing | 1601 Post St, San Francisco | Jun 5, 2026<1yr | — | — |
| Closed | PW20260517960 | Plumbing | 1201 Illinois St, San Francisco | May 17, 2026<1yr | — | — |
| Closed | PW20260417205 | Plumbing | 1315 Market St, San Francisco | Apr 17, 2026<1yr | — | — |
| Open | PW20260330726 | Plumbing | 835 Mcallister St, San Francisco | Mar 30, 2026<1yr | — | — |
| Closed | PW20260306165 | Plumbing | 401 Divisadero St, San Francisco | Mar 6, 2026<1yr | — | — |
| Closed | PW20260213589 | Plumbing | 101 Memory Ln, San Francisco | Feb 13, 2026<1yr | — | — |
| Closed | PW20260210487 | Plumbing | 999 Unknown, San Francisco | Feb 10, 2026<1yr | — | — |
| Closed | PW20260108696 | Plumbing | 168 Clipper St, San Francisco | Jan 8, 2026<1yr | — | — |
| Closed | PW20260108690 | Plumbing | 450 Sansome St, San Francisco | Jan 8, 2026<1yr | — | — |
| Closed | PW20251215287 | Plumbing | 925 Golden Gate Av, San Francisco | Dec 15, 2025<1yr | — | — |
| Closed | PW20251118641 | Plumbing | 401 Divisadero St, San Francisco | Nov 18, 2025<1yr | — | — |
| Closed | PW20251118640 | Plumbing | 235 Montgomery St, San Francisco | Nov 18, 2025<1yr | — | — |
| Open | PW20251017907 | Plumbing | 235 Montgomery St, San Francisco | Oct 17, 2025<1yr | — | — |
| Closed | PW20251002521 | Plumbing | 1650 Pacific Av, San Francisco | Oct 2, 2025<1yr | — | — |
| Closed | PW20250923242 | Plumbing | 88 Kearny St, San Francisco | Sep 23, 2025<1yr | — | — |
| Closed | PW20250922207 | Plumbing | 299 02nd St, San Francisco | Sep 22, 2025<1yr | — | — |
| Closed | PW20250916091 | Plumbing | 100 Pine St, San Francisco | Sep 16, 2025<1yr | — | — |
| Closed | PW20250811239 | Plumbing | 73 Vandewater St, San Francisco | Aug 11, 2025<1yr | — | — |
| Closed | PW20250811241 | Plumbing | 2340 Turk Bl, San Francisco | Aug 11, 2025<1yr | — | — |
| Closed | PW20250808200 | Plumbing | 555 Pine St, San Francisco | Aug 8, 2025<1yr | — | — |
| Closed | PW20250708443 | Plumbing | 111 Bayview Cr, San Francisco | Jul 8, 2025<1yr | — | — |
| Closed | PW20250619046 | Plumbing | 1 Mccoppin St, San Francisco | Jun 19, 2025<1yr | — | — |
| Closed | PW20250521422 | Plumbing | 201 California St, San Francisco | May 21, 2025 | — | — |
| Closed | PW20250424789 | Plumbing | 3874 18th St, San Francisco | Apr 24, 2025 | — | — |
| Closed | PW20250424790 | Plumbing | 4150 Clement St, San Francisco | Apr 24, 2025 | — | — |
| Closed | PW20250319866 | Plumbing | 562 Sutter St, San Francisco | Mar 19, 2025 | — | — |
| Closed | PW20250303478 | Plumbing | 899 Mcallister St, San Francisco | Mar 3, 2025 | — | — |
| Closed | PW20250228435 | Plumbing | 649 Gough St, San Francisco | Feb 28, 2025 | — | — |
| Closed | PW20250221231 | Plumbing | 1 Harrison St, San Francisco | Feb 21, 2025 | — | — |
| Closed | PW20250124575 | Plumbing | 1400 16th St, San Francisco | Jan 24, 2025 | — | — |
| Closed | PW20241105930 | Plumbing | 425 Mission St, San Francisco | Nov 5, 2024 | — | — |
| Closed | PW20241028732 | Plumbing | 1800 Haight St, San Francisco | Oct 28, 2024 | — | — |
| Closed | PW20241008209 | Plumbing | 221 Main St, San Francisco | Oct 8, 2024 | — | — |
| Closed | PW20241008208 | Plumbing | 1625 Post St, San Francisco | Oct 8, 2024 | — | — |
| Closed | PW20240814870 | Plumbing | 350 Bay St, San Francisco | Aug 14, 2024 | — | — |
| Closed | PW20240814857 | Plumbing | 855 Howard St, San Francisco | Aug 14, 2024 | — | — |
| Closed | PW20240814876 | Plumbing | 350 Bay St, San Francisco | Aug 14, 2024 | — | — |
| Closed | PW20240805637 | Plumbing | 601 Townsend St, San Francisco | Aug 5, 2024 | — | — |
| Closed | PW20240711109 | Plumbing | 201 Sacramento St, San Francisco | Jul 11, 2024 | — | — |
| Closed | PW20240710085 | Plumbing | 1800 Jerrold Av, San Francisco | Jul 10, 2024 | — | — |
| Closed | PW20240611454 | Plumbing | 77 Beale St, San Francisco | Jun 11, 2024 | — | — |
| Closed | PW20240510703 | Plumbing | 611 Folsom St, San Francisco | May 10, 2024 | — | — |
| Closed | PW20240510712 | Plumbing | 133 Stockton St, San Francisco | May 10, 2024 | — | — |
| Closed | PW20240325553 | Plumbing | 133 Stockton St, San Francisco | Mar 25, 2024 | — | — |
| Closed | PW20240325558 | Plumbing | 655 Montgomery St, San Francisco | Mar 25, 2024 | — | — |
| Closed | PW20240222804 | Plumbing | 40 Toledo Wy, San Francisco | Feb 22, 2024 | — | — |
| Closed | PW20240129207 | Plumbing | 455 Fell St, San Francisco | Jan 29, 2024 | — | — |
| Closed | PW20231031274 | Plumbing | 1201 Market St, San Francisco | Oct 31, 2023 | — | — |
| Closed | PW20231027201 | Plumbing | 77 Beale St, San Francisco | Oct 27, 2023 | — | — |
| Closed | PW20231026157 | Plumbing | 45 Fremont St, San Francisco | Oct 26, 2023 | — | — |
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