DENKO MECHANICAL INC
DENKO MECHANICAL INC has filed 185 building permits in New York City since 2019, closing 80% of 155 rated permits. 54 permits remain open.
80%
185
Construction Permits
54
Currently Open
155
Rate-Eligible
permits > 1yr old
2019–2026
Years Active
Closure rate based on permits older than 1 year. “Issued” and “Stop Work” statuses are excluded.
Performance by Permit Type
Fire Protection144 rated
79.2% closed vs 84% median, 4.6 points lower
Plumbing11 rated
90.9% closed vs 83% median, 8.3 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)
—
Open6
Closed0
Too early to rate — permits need 1 year to mature
2025
0.0%
Open19
Closed7
0 closed / 2 rated
2024
69.2%
Open8
Closed18
18 closed / 26 rated
2023
71.1%
Open13
Closed32
32 closed / 45 rated
2022
73.7%
Open5
Closed14
14 closed / 19 rated
2021
90.0%
Open2
Closed18
18 closed / 20 rated
2020
100.0%
Open0
Closed38
38 closed / 38 rated
2019
80.0%
Open1
Closed4
4 closed / 5 rated
All Permits
185 permits
| Status | Permit # | Address | Issued▼ | |||
|---|---|---|---|---|---|---|
| Open | B01162466-S2-EW-SP | Plumbing | 222 1 STREET, BROOKLYN, New York | Feb 23, 2026<1yr | Dec 9, 2026 | $300,949 |
| Open | M01326773-S3-EW-SP | Sprinklers | ONE BRYANT PARK, MANHATTAN, New York | Feb 9, 2026<1yr | Dec 9, 2026 | $55,347 |
| Open | M01252492-I1-EW-SP | Sprinklers | 350 FIFTH AVENUE, MANHATTAN, New York | Feb 9, 2026<1yr | Dec 9, 2026 | $20,000 |
| Open | M01336205-S3-EW-SP | Sprinklers | 200 LIBERTY STREET, MANHATTAN, New York | Feb 4, 2026<1yr | Dec 9, 2026 | $30,000 |
| Open | M00678537-I1-EW-SP | Sprinklers | 515 WEST 20 STREET, MANHATTAN, New York | Jan 20, 2026<1yr | Dec 9, 2026 | $21,500 |
| Open | Q01324216-S2-EW-SP | Sprinklers | 107-30 71 ROAD, QUEENS, New York | Jan 8, 2026<1yr | Dec 9, 2026 | $50,100 |
| Open | M01320778-S2-EW-SP | Sprinklers | 461 5 AVENUE, MANHATTAN, New York | Dec 29, 2025<1yr | Dec 9, 2026 | $46,999.9 |
| Open | M01317492-I1-EW-SP | Sprinklers | 485 LEXINGTON AVENUE, MANHATTAN, New York | Dec 16, 2025<1yr | Dec 9, 2026 | $20,000 |
| Open | M01213511-S2-EW-SP | Sprinklers | 461 5 AVENUE, MANHATTAN, New York | Dec 16, 2025<1yr | Dec 9, 2026 | $24,999.39 |
| Open | M01269675-I1-EW-SP | Sprinklers | 60 EAST 42 STREET, MANHATTAN, New York | Oct 31, 2025<1yr | Dec 9, 2025 | $7,000 |
| Open | M01282561-S2-EW-SP | Sprinklers | 885 THIRD AVENUE, MANHATTAN, New York | Oct 14, 2025<1yr | Dec 9, 2025 | $19,025 |
| Open | M01274706-I1-PL | Sprinklers | 498 SEVENTH AVENUE, MANHATTAN, New York | Oct 14, 2025<1yr | Dec 9, 2025 | $52,983 |
| Open | M01274706-I1-EW-SP | Plumbing | 498 SEVENTH AVENUE, MANHATTAN, New York | Oct 14, 2025<1yr | Dec 9, 2025 | $52,983 |
| Closed | M01163004-I1-EW-SP | Sprinklers | 60 EAST 42 STREET, MANHATTAN, New York | Sep 29, 2025<1yr | Dec 9, 2025 | $26,000 |
| Open | M01208733-I1-EW-SP | Sprinklers | 350 FIFTH AVENUE, MANHATTAN, New York | Sep 26, 2025<1yr | Dec 9, 2025 | $55,043.2 |
| Open | M01256776-I1-EW-SP | Sprinklers | 810 SEVENTH AVENUE, MANHATTAN, New York | Sep 24, 2025<1yr | Dec 9, 2025 | $7,500 |
| Open | M01269796-I1-EW-SP | Sprinklers | 60 EAST 42 STREET, MANHATTAN, New York | Sep 19, 2025<1yr | Dec 9, 2025 | $8,200 |
| Open | M01271358-I1-EW-SP | Sprinklers | 350 FIFTH AVENUE, MANHATTAN, New York | Sep 12, 2025<1yr | Dec 9, 2025 | $6,600 |
| Open | M01256247-I1-EW-SP | Sprinklers | 199 WATER STREET, MANHATTAN, New York | Aug 25, 2025<1yr | Dec 9, 2025 | $44,999.73 |
| Open | M01224445-S3-EW-SP | Sprinklers | 799 BROADWAY, MANHATTAN, New York | Aug 25, 2025<1yr | Dec 9, 2025 | $20,000 |
| Open | M01233082-S3-EW-SP | Sprinklers | 101 PARK AVENUE, MANHATTAN, New York | Jul 15, 2025<1yr | Dec 9, 2025 | $33,000 |
| Open | M01223705-I1-EW-SP | Sprinklers | 356 WEST 18 STREET, MANHATTAN, New York | Jul 1, 2025<1yr | Dec 9, 2025 | $4,000 |
| Open | M01207686-I1-EW-SP | Sprinklers | 356 WEST 18 STREET, MANHATTAN, New York | Jul 1, 2025<1yr | Dec 9, 2025 | $26,293 |
| Open | M01179538-I1-EW-SP | Sprinklers | 529 WEST 20 STREET, MANHATTAN, New York | Jun 9, 2025<1yr | Dec 9, 2025 | $6,000 |
| Closed | M01186234-S2-EW-SP | Sprinklers | 220 EAST 42 STREET, MANHATTAN, New York | Apr 18, 2025<1yr | Dec 9, 2025 | $54,999.34 |
| Closed | M01186234-S3-EW-SD | Standpipe | 220 EAST 42 STREET, MANHATTAN, New York | Apr 18, 2025<1yr | Dec 9, 2025 | $5,000 |
| Closed | M01155723-S2-EW-SP | Sprinklers | 70 WASHINGTON SQUARE SOUTH, MANHATTAN, New York | Apr 14, 2025<1yr | Dec 9, 2025 | $499,998.6 |
| Closed | M01182978-I1-EW-SP | Sprinklers | 199 WATER STREET, MANHATTAN, New York | Apr 2, 2025<1yr | Dec 9, 2025 | $40,999.64 |
| Closed | M01180103-S3-EW-SP | Sprinklers | 225 LIBERTY STREET, MANHATTAN, New York | Mar 24, 2025<1yr | Dec 9, 2025 | $8,000 |
| Closed | M01154231-I1-EW-SP | Sprinklers | 350 FIFTH AVENUE, MANHATTAN, New York | Mar 4, 2025<1yr | Dec 9, 2025 | $90,000 |
| Open | M01133269-I1-EW-SP | Sprinklers | 685 THIRD AVENUE, MANHATTAN, New York | Jan 28, 2025 | Dec 9, 2025 | $31,890.8 |
| Open | M01137147-I1-EW-SP | Sprinklers | 1333 BROADWAY, MANHATTAN, New York | Jan 6, 2025 | Dec 9, 2025 | $16,498.8 |
| Open | M01102837-I1-EW-SP | Plumbing | 615 WEST 47 STREET, MANHATTAN, New York | Dec 16, 2024 | Dec 9, 2025 | $140,000 |
| Open | M01102837-I1-PL | Sprinklers | 615 WEST 47 STREET, MANHATTAN, New York | Dec 16, 2024 | Dec 9, 2025 | $140,000 |
| Open | M01115001-S3-EW-SP | Sprinklers | 7 TIMES SQUARE, MANHATTAN, New York | Nov 26, 2024 | Dec 9, 2024 | $20,000 |
| Open | M00973439-I1-EW-SP | Sprinklers | 1350 BROADWAY, MANHATTAN, New York | Nov 26, 2024 | Dec 9, 2024 | $1,500 |
| Open | M01070983-I1-EW-SP | Sprinklers | 60 EAST 42 STREET, MANHATTAN, New York | Oct 10, 2024 | Dec 9, 2024 | $444,425 |
| Open | M01070983-S1-EW-SD | Standpipe | 60 EAST 42 STREET, MANHATTAN, New York | Oct 10, 2024 | Dec 9, 2024 | $5,000 |
| Closed | M01100314-I1-EW-SP | Sprinklers | 685 THIRD AVENUE, MANHATTAN, New York | Oct 1, 2024 | Dec 9, 2024 | $3,500 |
| Closed | M01095489-S2-EW-SP | Sprinklers | 220 EAST 42 STREET, MANHATTAN, New York | Oct 1, 2024 | Dec 9, 2024 | $63,500 |
| Closed | M01082253-I1-EW-SP | Sprinklers | 45 ROCKEFELLER PLAZA, MANHATTAN, New York | Aug 15, 2024 | Dec 9, 2024 | $31,000 |
| Closed | M00784865-S6-EW-SD | Standpipe | 330 MADISON AVENUE, MANHATTAN, New York | Jul 25, 2024 | Dec 9, 2024 | $20,000 |
| Closed | M01032890-I1-EW-SP | Sprinklers | 277 PARK AVENUE, MANHATTAN, New York | Jul 12, 2024 | Dec 9, 2024 | $49,997 |
| Closed | Q00959248-I1-EW-SP | Sprinklers | 59-17 JUNCTION BOULEVARD, QUEENS, New York | Jun 12, 2024 | Dec 9, 2024 | $85,000 |
| Closed | M01049471-I1-EW-SP | Sprinklers | 880 THIRD AVENUE, MANHATTAN, New York | Jun 6, 2024 | Dec 9, 2024 | $4,991 |
| Closed | M01021052-S2-EW-SP | Plumbing | 100 WILLIAM STREET, MANHATTAN, New York | May 24, 2024 | Dec 9, 2024 | $225,000 |
| Closed | M01028074-I1-EW-SP | Sprinklers | 600 THIRD AVENUE, MANHATTAN, New York | May 23, 2024 | Dec 9, 2024 | $84,501.48 |
| Closed | M01006517-I1-EW-SP | Sprinklers | 600 THIRD AVENUE, MANHATTAN, New York | May 23, 2024 | Dec 9, 2024 | $5,000 |
| Closed | M01021042-S2-EW-SP | Sprinklers | 100 WILLIAM STREET, MANHATTAN, New York | May 23, 2024 | Dec 9, 2024 | $118,000 |
| Closed | Q00959274-I1-PL | Plumbing | 59-17 JUNCTION BOULEVARD, QUEENS, New York | May 20, 2024 | Dec 9, 2024 | $65,000 |
Page 1 of 4