John O'Mahony
John O'Mahony has filed 1,116 building permits in Boston since 2016, closing 40% of 1,002 rated permits. 656 permits remain open. Primarily files electrical permits. 9.8 points below the city median of 50.0%. Busiest year: 2022 with 156 permits.
40%
1,112
Construction Permits
1,116 total
656
Currently Open
1,002
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
Electrical812 rated
36.1% closed vs 60% median, 24.3 points lower
Fire Alarm146 rated
62.3% closed vs 38% median, 24.1 points higher
Low Voltage44 rated
43.2% closed vs 29% median, 14.4 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)
—
Open40
Closed22
Too early to rate — permits need 1 year to mature
2025
61.9%
Open41
Closed70
39 closed / 63 rated
2024
50.8%
Open64
Closed66
66 closed / 130 rated
2023
41.6%
Open66
Closed47
47 closed / 113 rated
2022
41.0%
Open92
Closed64
64 closed / 156 rated
2021
43.0%
Open57
Closed43
43 closed / 100 rated
2020
35.2%
Open46
Closed25
25 closed / 71 rated
2019
61.1%
Open21
Closed33
33 closed / 54 rated
2018
25.8%
Open69
Closed24
24 closed / 93 rated
2017
30.2%
Open97
Closed42
42 closed / 139 rated
2016
24.1%
Open63
Closed20
20 closed / 83 rated
All Permits
1,116 permits
| Status | Permit # | Address | Issued▼ | |||
|---|---|---|---|---|---|---|
| Open | E1871806 | Electrical Permit | 449 E Fifth ST, South Boston | Jul 13, 2026<1yr | Jan 13, 2027 | $20,000 |
| Open | E1871767 | Electrical Permit | 204 Dorchester ST, South Boston | Jul 13, 2026<1yr | Jan 13, 2027 | $25,000 |
| Open | E1871260 | Electrical Permit | 414-426 Boylston ST, Boston | Jul 10, 2026<1yr | Jan 10, 2027 | $29,965 |
| Open | E1871271 | Electrical Permit | 77 Franklin ST, Boston | Jul 10, 2026<1yr | Jan 10, 2027 | $15,060 |
| Open | EFA1863809 | Electrical Fire Alarms | 125-145 High ST, Boston | Jul 9, 2026<1yr | Jan 9, 2027 | $10,000 |
| Open | E1855351 | Electrical Permit | 260 Franklin ST, Boston | Jul 1, 2026<1yr | Jan 1, 2027 | $800 |
| Open | EFA1865484 | Electrical Fire Alarms | 40-46 Summer ST, Boston | Jun 29, 2026<1yr | Dec 29, 2026 | $11,700 |
| Open | E1865478 | Electrical Permit | 40-46 Summer ST, Boston | Jun 29, 2026<1yr | Dec 29, 2026 | $9,500 |
| Closed | E1864638 | Electrical Permit | 115 Federal ST, Boston | Jun 26, 2026<1yr | Dec 26, 2026 | $1,000 |
| Closed | E1859841 | Electrical Permit | 99 High ST, Boston | Jun 11, 2026<1yr | Dec 11, 2026 | $800 |
| Open | E1859338 | Electrical Permit | 800 Boylston ST, Boston | Jun 10, 2026<1yr | Dec 10, 2026 | $192,450 |
| Open | E1858027 | Electrical Permit | 95-99 Ward ST, Mission Hill | Jun 9, 2026<1yr | Dec 9, 2026 | $37,000 |
| Open | E1858163 | Electrical Permit | 1-3 Center PZ, Boston | Jun 5, 2026<1yr | Dec 5, 2026 | $468,450 |
| Open | EFA1858031 | Electrical Fire Alarms | 95-99 Ward ST, Mission Hill | Jun 5, 2026<1yr | Dec 5, 2026 | $7,000 |
| Open | E1856340 | Electrical Permit | 12R Ericsson ST, Dorchester | Jun 2, 2026<1yr | Dec 2, 2026 | $27,000 |
| Closed | E1855394 | Electrical Permit | 100 Federal ST, Boston | May 29, 2026<1yr | Nov 29, 2026 | $1,000 |
| Open | E1851690 | Electrical Permit | 99 High ST, Boston | May 28, 2026<1yr | Nov 28, 2026 | $1,200 |
| Closed | E1851660 | Electrical Permit | 330 Washington ST, Boston | May 21, 2026<1yr | Nov 21, 2026 | $31,000 |
| Closed | E1851557 | Electrical Permit | 125-145 High ST, Boston | May 20, 2026<1yr | Nov 20, 2026 | $100,000 |
| Open | E1847093 | Electrical Permit | 1 Post Office SQ, Boston | May 7, 2026<1yr | Nov 7, 2026 | $314,050 |
| Open | E1844222 | Electrical Permit | 175-177 Huntington AV, Boston | Apr 30, 2026<1yr | Oct 30, 2026 | $20,000 |
| Open | E1843514 | Electrical Permit | 30-36 Batterymarch ST, Boston | Apr 30, 2026<1yr | Oct 30, 2026 | $8,500 |
| Open | EFA1836816 | Electrical Fire Alarms | 399 Boylston ST, Boston | Apr 7, 2026<1yr | Oct 7, 2026 | $8,025 |
| Open | E1836811 | Electrical Permit | 399 Boylston ST, Boston | Apr 7, 2026<1yr | Oct 7, 2026 | $170,000 |
| Open | EFA1835623 | Electrical Fire Alarms | 20 Clinton ST, Boston | Apr 2, 2026<1yr | Oct 2, 2026 | $37,126 |
| Open | E1835556 | Electrical Permit | 20 Clinton ST, Boston | Apr 2, 2026<1yr | Oct 2, 2026 | $505,624 |
| Closed | ELV1834697 | Electrical Low Voltage | 341-345 Congress ST, Boston | Apr 1, 2026<1yr | Oct 1, 2026 | $139,865 |
| Open | E1834091 | Electrical Permit | 1 Bulfinch PL, Boston | Mar 31, 2026<1yr | Sep 30, 2026 | $25,000 |
| Open | E1834082 | Electrical Permit | 1 Bulfinch PL, Boston | Mar 30, 2026<1yr | Sep 30, 2026 | $43,525 |
| Open | E1829265 | Electrical Permit | 4 Blackfan CI, Boston | Mar 25, 2026<1yr | Sep 25, 2026 | $12,000 |
| Closed | EFA1828207 | Electrical Fire Alarms | 341-345 Congress ST, Boston | Mar 16, 2026<1yr | Sep 16, 2026 | $26,900 |
| Open | E1826862 | Electrical Permit | 135 William T Morrissey BL, Dorchester | Mar 13, 2026<1yr | Sep 13, 2026 | $800 |
| Closed | E1826440 | Electrical Permit | 190-210 Pier 4 BL, Boston | Mar 10, 2026<1yr | Sep 10, 2026 | $50,000 |
| Open | E1825797 | Electrical Permit | 200 Boylston ST, Boston | Mar 9, 2026<1yr | Sep 9, 2026 | $11,000 |
| Open | EFA1825878 | Electrical Fire Alarms | 465-479 Huntington AV, Boston | Mar 6, 2026<1yr | Sep 6, 2026 | $15,000 |
| Closed | EFA1825862 | Electrical Fire Alarms | 465-479 Huntington AV, Boston | Mar 6, 2026<1yr | Sep 6, 2026 | $12,000 |
| Open | E1825829 | Electrical Permit | 465-479 Huntington AV, Boston | Mar 6, 2026<1yr | Sep 6, 2026 | $90,000 |
| Open | E1824503 | Electrical Permit | 645 Summer ST, Boston | Mar 6, 2026<1yr | Sep 6, 2026 | $800 |
| Open | E1825625 | Electrical Permit | 100 Summer ST, Boston | Mar 6, 2026<1yr | Sep 6, 2026 | $800 |
| Open | E1824615 | Electrical Permit | 100 High ST, Boston | Mar 3, 2026<1yr | Sep 3, 2026 | $4,500 |
| Closed | EFA1824610 | Electrical Fire Alarms | 150 Oliver ST, Boston | Mar 3, 2026<1yr | Sep 3, 2026 | $13,000 |
| Closed | E1824031 | Electrical Permit | 341-345 Congress ST, Boston | Mar 2, 2026<1yr | Sep 2, 2026 | $209,950 |
| Closed | E1824404 | Electrical Permit | 150 Oliver ST, Boston | Mar 2, 2026<1yr | Sep 2, 2026 | $225,000 |
| Open | E1822578 | Electrical Permit | 201 Washington ST, Boston | Feb 20, 2026<1yr | Aug 20, 2026 | $1,617,000 |
| Open | E1819951 | Electrical Permit | 1 Beacon ST, Boston | Feb 17, 2026<1yr | Aug 17, 2026 | $1,200 |
| Closed | E1820602 | Electrical Permit | 276-278 Washington ST, Boston | Feb 12, 2026<1yr | Aug 12, 2026 | $120,000 |
| Open | E1776227 | Electrical Permit | 1 Beacon ST, Boston | Feb 10, 2026<1yr | Aug 10, 2026 | $800 |
| Closed | E1818401 | Electrical Permit | 160 Saint Alphonsus ST, Mission Hill | Feb 9, 2026<1yr | Aug 9, 2026 | $3,500 |
| Closed | E1818583 | Electrical Permit | 99 High ST, Boston | Feb 9, 2026<1yr | Aug 9, 2026 | $1,200 |
| Closed | ELV1818897 | Electrical Low Voltage | 100 Federal ST, Boston | Feb 5, 2026<1yr | Aug 5, 2026 | $6,000 |
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