MAZZONI MECHANICAL LLC
MAZZONI MECHANICAL LLC has filed 30 building permits in Philadelphia since 2018, closing 100% of 29 rated permits. 1 permit remains open.
100%
30
Construction Permits
1
Currently Open
29
Rate-Eligible
permits > 1yr old
2018–2025
Years Active
Closure rate based on permits older than 1 year. “Issued” and “Stop Work” statuses are excluded.
Performance by Permit Type
Plumbing28 rated
100.0% closed vs 95% median, 5.5 points higher
Building1 rated
100.0% closed vs 90% median, 10.0 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
2025
—
Open1
Closed0
Too early to rate — permits need 1 year to mature
2020
100.0%
Open0
Closed1
1 closed / 1 rated
2019
100.0%
Open0
Closed13
13 closed / 13 rated
2018
100.0%
Open0
Closed15
15 closed / 15 rated
All Permits
30 permits
| Status | Permit # | Address | Issued▼ | |||
|---|---|---|---|---|---|---|
| Open | RP-2025-010259 | Residential Building Permit | 527 DUPONT ST, Philadelphia | Oct 21, 2025<1yr | — | — |
| Closed | 1043181 | PLUMBING PERMIT | 319-27 S 4TH ST, Philadelphia | Jan 21, 2020 | — | — |
| Closed | 1020511 | PLUMBING PERMIT | 1113 LEOPARD ST, Philadelphia | Oct 21, 2019 | — | — |
| Closed | 1020530 | PLUMBING PERMIT | 1113 LEOPARD ST, Philadelphia | Oct 21, 2019 | — | — |
| Closed | 997128 | PLUMBING PERMIT | 742 S 4TH ST, Philadelphia | Jul 26, 2019 | — | — |
| Closed | 993859 | PLUMBING PERMIT | 1337 N FRANKLIN ST, Philadelphia | Jul 16, 2019 | — | — |
| Closed | 990353 | PLUMBING PERMIT | 2830 N AMERICAN ST, Philadelphia | Jul 2, 2019 | — | — |
| Closed | 987568 | PLUMBING PERMIT | 604-06 S 9TH ST, Philadelphia | Jun 21, 2019 | — | — |
| Closed | 982633 | PLUMBING PERMIT | 234 LOMBARD ST, Philadelphia | Jun 5, 2019 | — | — |
| Closed | 976563 | PLUMBING PERMIT | 314-22 N 12TH ST, Philadelphia | May 15, 2019 | — | — |
| Closed | 973610 | PLUMBING PERMIT | 124-26 LEVERING ST, Philadelphia | May 6, 2019 | — | — |
| Closed | 973618 | PLUMBING PERMIT | 804 N BROAD ST, Philadelphia | May 6, 2019 | — | — |
| Closed | 961208 | PLUMBING PERMIT | 742 S 4TH ST, Philadelphia | May 6, 2019 | — | — |
| Closed | 961351 | PLUMBING PERMIT | 1436 POINT BREEZE AVE, Philadelphia | Mar 27, 2019 | — | — |
| Closed | 958684 | PLUMBING PERMIT | 5336-38 GERMANTOWN AVE, Philadelphia | Mar 19, 2019 | — | — |
| Closed | 937941 | PLUMBING PERMIT | 347 HELLERMAN ST, Philadelphia | Dec 28, 2018 | — | — |
| Closed | 937245 | PLUMBING PERMIT | 115 N 34TH ST, Philadelphia | Dec 24, 2018 | — | — |
| Closed | 932170 | PLUMBING PERMIT | 640 N 32ND ST, Philadelphia | Dec 4, 2018 | — | — |
| Closed | 909014 | PLUMBING PERMIT | 5336-38 GERMANTOWN AVE, Philadelphia | Nov 15, 2018 | — | — |
| Closed | 921582 | PLUMBING PERMIT | 4812 FLORENCE AVE, Philadelphia | Oct 24, 2018 | — | — |
| Closed | 919367 | PLUMBING PERMIT | 1203 GERMANTOWN AVE, Philadelphia | Oct 24, 2018 | — | — |
| Closed | 921590 | PLUMBING PERMIT | 1203 GERMANTOWN AVE, Philadelphia | Oct 24, 2018 | — | — |
| Closed | 921584 | PLUMBING PERMIT | 406R S 21ST ST, Philadelphia | Oct 24, 2018 | — | — |
| Closed | 904777 | PLUMBING PERMIT | 604-06 S 9TH ST, Philadelphia | Oct 17, 2018 | — | — |
| Closed | 916184 | PLUMBING PERMIT | 1327 N FRANKLIN ST, Philadelphia | Oct 5, 2018 | — | — |
| Closed | 898581 | PLUMBING PERMIT | 640 N 32ND ST, Philadelphia | Sep 6, 2018 | — | — |
| Closed | 898860 | PLUMBING PERMIT | 1203 GERMANTOWN AVE, Philadelphia | Aug 16, 2018 | — | — |
| Closed | 887736 | PLUMBING PERMIT | 1203 GERMANTOWN AVE, Philadelphia | Aug 1, 2018 | — | — |
| Closed | 866611 | ALTERATION PERMIT | 2312 LOCUST ST, Philadelphia | Apr 11, 2018 | — | — |
| Closed | 841610 | PLUMBING PERMIT | 1446 N FRANKLIN ST, Philadelphia | Feb 22, 2018 | — | — |