McCosker Owen
McCosker Owen has filed 204 building permits in Boston since 2012, closing 72% of 185 rated permits. 59 permits remain open. Primarily files plumbing permits. 21.9 points above the city median of 50.0%. Busiest year: 2015 with 29 permits.
72%
196
Construction Permits
204 total
59
Currently Open
185
Rate-Eligible
permits > 1yr old
2012–2026
Years Active
Closure rate based on permits older than 1 year. "Issued" and "Stop Work" statuses are excluded.
Performance by Permit Type
Plumbing101 rated
72.3% closed vs 63% median, 9.3 points higher
Gas81 rated
71.6% closed vs 59% median, 12.8 points higher
Building3 rated
66.7% closed vs 31% median, 35.7 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)
—
Open3
Closed0
Too early to rate — permits need 1 year to mature
2025
33.3%
Open12
Closed8
4 closed / 12 rated
2024
50.0%
Open4
Closed4
4 closed / 8 rated
2023
87.5%
Open1
Closed7
7 closed / 8 rated
2022
72.2%
Open5
Closed13
13 closed / 18 rated
2021
86.2%
Open4
Closed25
25 closed / 29 rated
2020
64.7%
Open6
Closed11
11 closed / 17 rated
2019
58.8%
Open7
Closed10
10 closed / 17 rated
2016
100.0%
Open0
Closed2
2 closed / 2 rated
2015
79.3%
Open6
Closed23
23 closed / 29 rated
2014
100.0%
Open0
Closed6
6 closed / 6 rated
2013
100.0%
Open0
Closed20
20 closed / 20 rated
2012
42.1%
Open11
Closed8
8 closed / 19 rated
All Permits
204 permits
| Status | Permit # | Address | Issued▼ | |||
|---|---|---|---|---|---|---|
| Open | PL1846335 | Plumbing Permit | 61 Montebello RD, Jamaica Plain | May 7, 2026<1yr | Nov 7, 2026 | $100,000 |
| Open | ALT1679596 | Long Form/Alteration Permit | 419 Poplar ST, Roslindale | May 7, 2026<1yr | Nov 6, 2026 | $1,000 |
| Open | G1828605 | Gas Permit | 100 Allstate RD, Dorchester | Mar 17, 2026<1yr | Sep 17, 2026 | $50,000 |
| Open | PL1828604 | Plumbing Permit | 100 Allstate RD, Dorchester | Mar 17, 2026<1yr | Sep 17, 2026 | $180,000 |
| Closed | G1792414 | Gas Permit | 36 Worley ST, West Roxbury | Oct 28, 2025<1yr | Apr 28, 2026 | $4,000 |
| Open | PL1792233 | Plumbing Permit | 36 Worley ST, West Roxbury | Oct 28, 2025<1yr | Apr 28, 2026 | $20,000 |
| Open | G1782645 | Gas Permit | 41 Westmoreland ST, Dorchester | Sep 25, 2025<1yr | Mar 25, 2026 | $2,000 |
| Closed | PL1782643 | Plumbing Permit | 41 Westmoreland ST, Dorchester | Sep 25, 2025<1yr | Mar 25, 2026 | $18,000 |
| Open | G1769158 | Gas Permit | 142 Metropolitan AV, Roslindale | Aug 26, 2025<1yr | Feb 26, 2026 | $6,000 |
| Closed | G1757160 | Gas Permit | 24 Hinckley ST, Dorchester | Aug 1, 2025<1yr | Feb 1, 2026 | $5,000 |
| Closed | PL1757155 | Plumbing Permit | 24 Hinckley ST, Dorchester | Aug 1, 2025<1yr | Feb 1, 2026 | $20,000 |
| Open | PL1755511 | Plumbing Permit | 503-521 Tremont ST, Boston | Jul 28, 2025<1yr | Jan 28, 2026 | $20,000 |
| Open | G1729895 | Gas Permit | 27 Soley ST, Charlestown | Jun 3, 2025 | Dec 3, 2025 | $1,800 |
| Open | PL1729893 | Plumbing Permit | 27 Soley ST, Charlestown | Jun 3, 2025 | Dec 3, 2025 | $6,000 |
| Open | G1723095 | Gas Permit | 128 Capen ST, Dorchester | May 29, 2025 | Nov 29, 2025 | $2,000 |
| Open | G1719171 | Gas Permit | 142 Metropolitan AV, Roslindale | May 8, 2025 | Nov 8, 2025 | $6,000 |
| Open | PL1719159 | Plumbing Permit | 142 Metropolitan AV, Roslindale | May 8, 2025 | Nov 8, 2025 | $30,000 |
| Open | G1716263 | Gas Permit | 4 Mystic ST, Charlestown | Apr 30, 2025 | Oct 30, 2025 | $4,000 |
| Open | PL1716258 | Plumbing Permit | 4 Mystic ST, Charlestown | Apr 30, 2025 | Oct 30, 2025 | $20,000 |
| Open | PL1702925 | Plumbing Permit | 63 Tremont ST, Charlestown | Mar 25, 2025 | Sep 25, 2025 | $6,000 |
| Closed | G1694535 | Gas Permit | 527 E Seventh ST, South Boston | Feb 26, 2025 | Aug 26, 2025 | $30,000 |
| Closed | PL1694530 | Plumbing Permit | 527 E Seventh ST, South Boston | Feb 26, 2025 | Aug 26, 2025 | $60,000 |
| Closed | G1684883 | Gas Permit | 38 Dorset ST, Dorchester | Jan 21, 2025 | Jul 21, 2025 | $6,000 |
| Closed | PL1684882 | Plumbing Permit | 38 Dorset ST, Dorchester | Jan 21, 2025 | Jul 21, 2025 | $20,000 |
| Closed | ALT1661836 | Long Form/Alteration Permit | 415 Poplar ST, Roslindale | Dec 12, 2024 | Jun 12, 2025 | $5,000 |
| Closed | G1671412 | Gas Permit | 11 Darling ST, Mission Hill | Nov 14, 2024 | May 14, 2025 | $2,000 |
| Closed | PL1670358 | Plumbing Permit | 11 Darling ST, Mission Hill | Nov 14, 2024 | May 14, 2025 | $10,000 |
| Open | G1664511 | Gas Permit | 5 Darling ST, Mission Hill | Oct 24, 2024 | Apr 24, 2025 | $3,000 |
| Open | PL1664508 | Plumbing Permit | 5 Darling ST, Mission Hill | Oct 24, 2024 | Apr 24, 2025 | $20,000 |
| Open | G1641816 | Gas Permit | 3 Darling ST, Mission Hill | Aug 19, 2024 | Feb 19, 2025 | $4,000 |
| Open | PL1641815 | Plumbing Permit | 3 Darling ST, Mission Hill | Aug 19, 2024 | Feb 19, 2025 | $26,000 |
| Closed | G1574658 | Gas Permit | 123 Church ST, West Roxbury | Feb 26, 2024 | Aug 26, 2024 | $4,000 |
| Closed | PL1574657 | Plumbing Permit | 123 Church ST, West Roxbury | Feb 26, 2024 | Aug 26, 2024 | $20,000 |
| Closed | G1505520 | Gas Permit | 490 Bennington ST, East Boston | Jul 27, 2023 | Jan 27, 2024 | $15,000 |
| Closed | PL1505508 | Plumbing Permit | 490 Bennington ST, East Boston | Jul 27, 2023 | Jan 27, 2024 | $120,000 |
| Closed | G1490952 | Gas Permit | 32 Tremont ST, Charlestown | Jun 29, 2023 | Dec 29, 2023 | $6,000 |
| Closed | PL1490945 | Plumbing Permit | 32 Tremont ST, Charlestown | Jun 29, 2023 | Dec 29, 2023 | $30,000 |
| Open | U491432563 | Use of Premises | 196 W Sixth ST, South Boston | Jun 20, 2023 | Dec 20, 2023 | $600,000 |
| Closed | COO1483868 | Certificate of Occupancy | 196 W Sixth ST, South Boston | Jun 15, 2023 | — | $680,000 |
| Open | A1471330 | Amendment to a Long Form | 196 W Sixth ST, South Boston | May 15, 2023 | Nov 15, 2023 | $7,000 |
| Closed | G1462163 | Gas Permit | 10-10A Hallet ST, Dorchester | Apr 13, 2023 | Oct 13, 2023 | $8,000 |
| Closed | PL1462153 | Plumbing Permit | 10-10A Hallet ST, Dorchester | Apr 13, 2023 | Oct 13, 2023 | $30,000 |
| Closed | PL1431768 | Plumbing Permit | 19-23 Clapp ST, Dorchester | Jan 11, 2023 | Jul 11, 2023 | $140,000 |
| Closed | ALT1411867 | Long Form/Alteration Permit | 196 W Sixth ST, South Boston | Dec 5, 2022 | — | $600,000 |
| Open | G1398655 | Gas Permit | 36 High ST, Charlestown | Oct 5, 2022 | Apr 5, 2023 | $5,000 |
| Open | PL1398652 | Plumbing Permit | 36 High ST, Charlestown | Oct 5, 2022 | Apr 5, 2023 | $40,000 |
| Open | G1272050 | Gas Permit | 18 Harvard ST, Charlestown | Oct 5, 2022 | Apr 5, 2023 | $500 |
| Closed | G1398364 | Gas Permit | 7 Wordsworth ST, East Boston | Oct 4, 2022 | Apr 4, 2023 | $8,000 |
| Closed | PL1398359 | Plumbing Permit | 7 Wordsworth ST, East Boston | Oct 4, 2022 | Apr 4, 2023 | $90,000 |
| Closed | G1398343 | Gas Permit | 29 Tilesboro ST, Dorchester | Oct 4, 2022 | Apr 4, 2023 | $8,000 |
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