Duffin Construction
Duffin Construction has filed 97 building permits in San Francisco since 2016, closing 74% of 97 rated permits. 25 permits remain open.
74%
97
Construction Permits
25
Currently Open
97
Rate-Eligible
permits > 1yr old
2016–2023
Years Active
Closure rate based on permits older than 1 year. “Issued” and “Stop Work” statuses are excluded.
Performance by Permit Type
Building35 rated
74.3% closed vs 76% median, 1.9 points lower
Plumbing34 rated
70.6% closed vs 81% median, 10.4 points lower
Electrical28 rated
78.6% closed vs 88% median, 8.9 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
2023
50.0%
Open1
Closed1
1 closed / 2 rated
2022
100.0%
Open0
Closed3
3 closed / 3 rated
2021
71.4%
Open2
Closed5
5 closed / 7 rated
2020
90.9%
Open1
Closed10
10 closed / 11 rated
2019
90.0%
Open2
Closed18
18 closed / 20 rated
2018
69.2%
Open8
Closed18
18 closed / 26 rated
2017
62.5%
Open6
Closed10
10 closed / 16 rated
2016
58.3%
Open5
Closed7
7 closed / 12 rated
All Permits
97 permits
| Status | Permit # | Address | Issued▼ | |||
|---|---|---|---|---|---|---|
| Open | PP20230411404 | Plumbing | 639 34th Av, San Francisco | Apr 11, 2023 | — | — |
| Closed | E202304116109 | Electrical | 639 34th Av, San Francisco | Apr 11, 2023 | — | $0 |
| Closed | PP20220125660 | Plumbing | 48 Clarendon Av, San Francisco | Jan 25, 2022 | — | — |
| Closed | E202201257997 | Electrical | 48 Clarendon Av, San Francisco | Jan 25, 2022 | — | $0 |
| Closed | 202201256589 | otc alterations permit | 48 Clarendon Av, San Francisco | Jan 25, 2022 | — | $1 |
| Open | PP20211026143 | Plumbing | 88 Entrada Ct, San Francisco | Oct 26, 2021 | — | — |
| Open | E202110266387 | Electrical | 88 Entrada Ct, San Francisco | Oct 26, 2021 | — | $0 |
| Closed | PP20210820839 | Plumbing | 887 28th Av, San Francisco | Aug 20, 2021 | — | — |
| Closed | E202108205143 | Electrical | 887 28th Av, San Francisco | Aug 20, 2021 | — | $0 |
| Closed | 202105200668 | otc alterations permit | 887 28th Av, San Francisco | May 20, 2021 | — | $1,000 |
| Closed | 202104289491 | otc alterations permit | 65 Almaden Ct, San Francisco | May 13, 2021 | — | $10,000 |
| Closed | 202103035748 | otc alterations permit | 887 28th Av, San Francisco | May 4, 2021 | — | $20,000 |
| Open | 202012080442 | otc alterations permit | 88 Entrada Ct, San Francisco | Dec 8, 2020 | — | $80,000 |
| Closed | PP20200915047 | Plumbing | 16 Entrada Ct, San Francisco | Sep 17, 2020 | — | — |
| Closed | E202009159581 | Electrical | 16 Entrada Ct, San Francisco | Sep 17, 2020 | — | $0 |
| Closed | 202009144125 | otc alterations permit | 16 Entrada Ct, San Francisco | Sep 14, 2020 | — | $40,000 |
| Closed | PP20200728340 | Plumbing | 1816 Lake St, San Francisco | Jul 30, 2020 | — | — |
| Closed | 202007210596 | otc alterations permit | 1816 Lake St, San Francisco | Jul 22, 2020 | — | $1 |
| Closed | PP20200629002 | Plumbing | 457 Tehama St, San Francisco | Jun 29, 2020 | — | — |
| Closed | 202003126921 | otc alterations permit | 457 Tehama St, San Francisco | Mar 12, 2020 | — | $300,000 |
| Closed | PP20200130224 | Plumbing | 60 Arguello Bl, San Francisco | Jan 30, 2020 | — | — |
| Closed | E202001307169 | Electrical | 60 Arguello Bl, San Francisco | Jan 30, 2020 | — | $0 |
| Closed | 202001303098 | otc alterations permit | 60 Arguello Bl, San Francisco | Jan 30, 2020 | — | $30,000 |
| Closed | PP20191007059 | Plumbing | 2745 Octavia St, San Francisco | Oct 7, 2019 | — | — |
| Open | M1149247 | otc alterations permit | 6725 California St, San Francisco | Oct 7, 2019 | — | — |
| Closed | PP20190828907 | Plumbing | 4238 23rd St, San Francisco | Aug 28, 2019 | — | — |
| Closed | E201908283747 | Electrical | 4238 23rd St, San Francisco | Aug 28, 2019 | — | $0 |
| Closed | 201810243988 | otc alterations permit | 4238 23rd St, San Francisco | Aug 28, 2019 | — | $40,000 |
| Closed | 201908169023 | otc alterations permit | 1501 Beach St, San Francisco | Aug 16, 2019 | — | $30,000 |
| Closed | PP20190528138 | Plumbing | 6725 California St, San Francisco | May 28, 2019 | — | — |
| Closed | PP20190528137 | Plumbing | 453 Douglass St, San Francisco | May 28, 2019 | — | — |
| Closed | E201905281537 | Electrical | 6725 California St, San Francisco | May 28, 2019 | — | $0 |
| Closed | E201905281536 | Electrical | 453 Douglass St, San Francisco | May 28, 2019 | — | $0 |
| Open | 201905281785 | otc alterations permit | 453 Douglass St, San Francisco | May 28, 2019 | — | $20,000 |
| Closed | PP20190320158 | Plumbing | 584 Duncan St, San Francisco | Mar 20, 2019 | — | — |
| Closed | 201903205805 | otc alterations permit | 584 Duncan St, San Francisco | Mar 20, 2019 | — | $1 |
| Closed | 201903205804 | otc alterations permit | 233 Garfield St, San Francisco | Mar 20, 2019 | — | $1,500 |
| Closed | PP20190206922 | Plumbing | 3595 21st St, San Francisco | Feb 6, 2019 | — | — |
| Closed | PP20190206921 | Plumbing | 2645 Baker St, San Francisco | Feb 6, 2019 | — | — |
| Closed | E201902068939 | Electrical | 2645 Baker St, San Francisco | Feb 6, 2019 | — | $0 |
| Closed | E201902068941 | Electrical | 3595 21st St, San Francisco | Feb 6, 2019 | — | $0 |
| Closed | 201902062268 | otc alterations permit | 2645 Baker St, San Francisco | Feb 6, 2019 | — | $5,000 |
| Closed | 201902041962 | otc alterations permit | 3595 21st St, San Francisco | Feb 6, 2019 | — | $15,000 |
| Closed | PP20180913833 | Plumbing | 2206 Pine St, San Francisco | Sep 13, 2018 | — | — |
| Closed | E201809135860 | Electrical | 2206 Pine St, San Francisco | Sep 13, 2018 | — | $0 |
| Closed | 201809130093 | otc alterations permit | 2206 Pine St, San Francisco | Sep 13, 2018 | — | $50,000 |
| Closed | PP20180906631 | Plumbing | 876 43rd Av, San Francisco | Sep 6, 2018 | — | — |
| Open | E201809065729 | Electrical | 876 43rd Av, San Francisco | Sep 6, 2018 | — | $0 |
| Closed | PP20180829392 | Plumbing | 453 Douglass St, San Francisco | Aug 29, 2018 | — | — |
| Open | E201808295537 | Electrical | 453 Douglass St, San Francisco | Aug 29, 2018 | — | $0 |
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