Daniel Mahr
Daniel Mahr has filed 318 building permits in Boston since 2011, closing 32% of 300 rated permits. 214 permits remain open. Primarily files gas permits. 17.7 points below the city median of 50.0%. Busiest year: 2019 with 65 permits.
32%
318
Construction Permits
214
Currently Open
300
Rate-Eligible
permits > 1yr old
2011–2026
Years Active
Closure rate based on permits older than 1 year. "Issued" and "Stop Work" statuses are excluded.
Performance by Permit Type
Gas156 rated
28.8% closed vs 59% median, 30.0 points lower
Plumbing144 rated
36.1% closed vs 63% median, 26.9 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
2026(YTD)
—
Open6
Closed5
Too early to rate — permits need 1 year to mature
2025
55.6%
Open9
Closed7
5 closed / 9 rated
2024
45.5%
Open18
Closed15
15 closed / 33 rated
2023
46.2%
Open7
Closed6
6 closed / 13 rated
2022
53.8%
Open6
Closed7
7 closed / 13 rated
2021
19.2%
Open21
Closed5
5 closed / 26 rated
2020
15.4%
Open33
Closed6
6 closed / 39 rated
2019
13.8%
Open56
Closed9
9 closed / 65 rated
2018
42.9%
Open8
Closed6
6 closed / 14 rated
2017
22.2%
Open21
Closed6
6 closed / 27 rated
2016
14.3%
Open6
Closed1
1 closed / 7 rated
2015
100.0%
Open0
Closed3
3 closed / 3 rated
2014
86.7%
Open2
Closed13
13 closed / 15 rated
2013
56.5%
Open10
Closed13
13 closed / 23 rated
2012
25.0%
Open6
Closed2
2 closed / 8 rated
2011
0.0%
Open5
Closed0
0 closed / 5 rated
All Permits
318 permits
| Status | Permit # | Address | Issued▼ | |||
|---|---|---|---|---|---|---|
| Open | PL1840482 | Plumbing Permit | 220-230 Commercial ST, Boston | Apr 20, 2026<1yr | Oct 20, 2026 | $1,200 |
| Open | G1840479 | Gas Permit | 220-230 Commercial ST, Boston | Apr 20, 2026<1yr | Oct 20, 2026 | $1,200 |
| Closed | G1838022 | Gas Permit | 1307 Commonwealth AV, Allston | Apr 13, 2026<1yr | Oct 13, 2026 | $2,500 |
| Closed | PL1838024 | Plumbing Permit | 1307 Commonwealth AV, Allston | Apr 13, 2026<1yr | Oct 13, 2026 | $2,500 |
| Closed | PL1837490 | Plumbing Permit | 43 Hemenway ST, Boston | Apr 9, 2026<1yr | Oct 9, 2026 | $1,200 |
| Open | PL1834453 | Plumbing Permit | 85-99 Medford ST, Charlestown | Mar 30, 2026<1yr | Sep 30, 2026 | $5,000 |
| Open | G1834450 | Gas Permit | 85-99 Medford ST, Charlestown | Mar 30, 2026<1yr | Sep 30, 2026 | $2,500 |
| Open | PL1823747 | Plumbing Permit | 490-496 Commonwealth AV, Boston | Feb 26, 2026<1yr | Aug 26, 2026 | $1,500 |
| Closed | PL1820020 | Plumbing Permit | 79 E Canton ST, Roxbury | Feb 10, 2026<1yr | Aug 10, 2026 | $2,500 |
| Closed | PL1814037 | Plumbing Permit | 57 Hemenway ST, Boston | Jan 23, 2026<1yr | Jul 23, 2026 | $750 |
| Open | G1814038 | Gas Permit | 57 Hemenway ST, Boston | Jan 23, 2026<1yr | Jul 23, 2026 | $750 |
| Closed | G1805245 | Gas Permit | 321 Centre ST, Dorchester | Dec 10, 2025<1yr | Jun 10, 2026 | $1,500 |
| Open | G1795472 | Gas Permit | 273-275 Clarendon ST, Boston | Nov 6, 2025<1yr | May 6, 2026 | $1,500 |
| Closed | PL1795474 | Plumbing Permit | 273-275 Clarendon ST, Boston | Nov 6, 2025<1yr | May 6, 2026 | $1,500 |
| Open | PL1787185 | Plumbing Permit | 15 Channel Center ST, Boston | Oct 13, 2025<1yr | Apr 13, 2026 | $1,800 |
| Open | G1754726 | Gas Permit | 303 Berkeley ST, Boston | Aug 14, 2025<1yr | Feb 14, 2026 | $3,000 |
| Open | PL1734414 | Plumbing Permit | 19 Washington ST, Dorchester | Jun 30, 2025<1yr | Dec 30, 2025 | $2,500 |
| Open | G1734411 | Gas Permit | 19 Washington ST, Dorchester | Jun 30, 2025<1yr | Dec 30, 2025 | $2,500 |
| Open | G1696340 | Gas Permit | 284-284A Centre ST, Jamaica Plain | May 14, 2025 | Nov 14, 2025 | $3,000 |
| Open | PL1696344 | Plumbing Permit | 284-284A Centre ST, Jamaica Plain | May 14, 2025 | Nov 14, 2025 | $3,000 |
| Open | PL1720504 | Plumbing Permit | 35 Washington ST, Dorchester | May 14, 2025 | Nov 14, 2025 | $1,500 |
| Open | G1720501 | Gas Permit | 35 Washington ST, Dorchester | May 14, 2025 | Nov 14, 2025 | $1,500 |
| Closed | PL1696329 | Plumbing Permit | 4 Creighton ST, Jamaica Plain | Mar 6, 2025 | Sep 6, 2025 | $4,500 |
| Closed | G1696328 | Gas Permit | 4 Creighton ST, Jamaica Plain | Mar 6, 2025 | Sep 6, 2025 | $4,500 |
| Closed | PL1692889 | Plumbing Permit | 110 Peterborough ST, Boston | Feb 19, 2025 | Aug 19, 2025 | $2,500 |
| Closed | PL1686300 | Plumbing Permit | 65 Commonwealth AV, Boston | Jan 27, 2025 | Jul 27, 2025 | $1,500 |
| Closed | G1686297 | Gas Permit | 65 Commonwealth AV, Boston | Jan 27, 2025 | Jul 27, 2025 | $2,500 |
| Open | G1670255 | Gas Permit | 41 Peterborough ST, Boston | Nov 13, 2024 | May 13, 2025 | $7,500 |
| Open | PL1670256 | Plumbing Permit | 41 Peterborough ST, Boston | Nov 13, 2024 | May 13, 2025 | $7,500 |
| Open | PL1666052 | Plumbing Permit | 20 Castlegate RD, Dorchester | Oct 28, 2024 | Apr 28, 2025 | $1,500 |
| Open | G1660877 | Gas Permit | 19-21 Aberdeen ST, Boston | Oct 16, 2024 | Apr 16, 2025 | $5,500 |
| Closed | G1653193 | Gas Permit | 39-47 Newbury ST, Boston | Sep 18, 2024 | Mar 18, 2025 | $4,500 |
| Closed | PL1653197 | Plumbing Permit | 39-47 Newbury ST, Boston | Sep 18, 2024 | Mar 18, 2025 | $2,500 |
| Closed | G1653222 | Gas Permit | 30 Hemenway ST, Boston | Sep 18, 2024 | Mar 18, 2025 | $4,500 |
| Open | PL1653228 | Plumbing Permit | 30 Hemenway ST, Boston | Sep 18, 2024 | Mar 18, 2025 | $4,500 |
| Open | PL1637668 | Plumbing Permit | 64 Burbank ST, Boston | Aug 15, 2024 | Feb 15, 2025 | $2,500 |
| Closed | PL1627208 | Plumbing Permit | 87 Saint Stephen ST, Boston | Aug 13, 2024 | Feb 13, 2025 | $5,000 |
| Closed | G1627203 | Gas Permit | 87 Saint Stephen ST, Boston | Aug 13, 2024 | Feb 13, 2025 | $5,000 |
| Open | G1621558 | Gas Permit | 15-19 Frawley ST, Boston | Jul 12, 2024 | Jan 12, 2025 | $1,500 |
| Open | PL1615001 | Plumbing Permit | 529 Columbus AV, Roxbury | Jul 1, 2024 | Jan 1, 2025 | $2,500 |
| Closed | PL1615821 | Plumbing Permit | 85 Dale ST, Roxbury | Jul 1, 2024 | Jan 1, 2025 | $1,500 |
| Closed | G1615818 | Gas Permit | 85 Dale ST, Roxbury | Jul 1, 2024 | Jan 1, 2025 | $1,500 |
| Closed | G1615786 | Gas Permit | 7 Frawley ST, Boston | Jul 1, 2024 | Jan 1, 2025 | $1,500 |
| Open | PL1615811 | Plumbing Permit | 7 Delle AV, Mission Hill | Jul 1, 2024 | Jan 1, 2025 | $1,500 |
| Open | PL1615813 | Plumbing Permit | 15-17 Delle AV, Roxbury | Jul 1, 2024 | Jan 1, 2025 | $1,500 |
| Open | PL1615816 | Plumbing Permit | 56 Delle AV, Mission Hill | Jul 1, 2024 | Jan 1, 2025 | $1,500 |
| Open | G1615797 | Gas Permit | 56 Delle AV, Mission Hill | Jul 1, 2024 | Jan 1, 2025 | $3,000 |
| Closed | PL1615806 | Plumbing Permit | 7 Frawley ST, Boston | Jul 1, 2024 | Jan 1, 2025 | $1,500 |
| Open | PL1615809 | Plumbing Permit | 15-19 Frawley ST, Boston | Jul 1, 2024 | Jan 1, 2025 | $1,500 |
| Open | G1615789 | Gas Permit | 7 Delle AV, Mission Hill | Jul 1, 2024 | Jan 1, 2025 | $3,000 |
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