DENKO MECHANICAL INC
DENKO MECHANICAL INC has filed 206 building permits in New York City since 2019, closing 85% of 168 rated permits. 54 permits remain open. Primarily files fire protection permits. 7.4 points above the city median of 77.1%. Busiest year: 2023 with 45 permits.
85%
206
Construction Permits
54
Currently Open
168
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 Protection156 rated
84.0% closed vs 86% median, 1.7 points lower
Plumbing12 rated
91.7% closed vs 84% median, 8.2 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)
—
Open24
Closed3
Too early to rate — permits need 1 year to mature
2025
86.7%
Open6
Closed20
13 closed / 15 rated
2024
80.8%
Open5
Closed21
21 closed / 26 rated
2023
73.3%
Open12
Closed33
33 closed / 45 rated
2022
73.7%
Open5
Closed14
14 closed / 19 rated
2021
95.0%
Open1
Closed19
19 closed / 20 rated
2020
100.0%
Open0
Closed38
38 closed / 38 rated
2019
80.0%
Open1
Closed4
4 closed / 5 rated
All Permits
206 permits
| Status | Permit # | Address | Issued▼ | |||
|---|---|---|---|---|---|---|
| Open | M01442989-S3-EW-SP | Sprinklers | 40 WEST 57 STREET, Manhattan, New York | Sep 8, 2026<1yr | Dec 9, 2026 | $76,800 |
| Open | M01425717-I1-EW-SP | Sprinklers | 1133 6 AVENUE, Manhattan, New York | Aug 7, 2026<1yr | Dec 9, 2026 | $4,250 |
| Open | M01413737-I1-EW-SP | Sprinklers | 110 GREENE STREET, Manhattan, New York | Aug 5, 2026<1yr | Dec 9, 2026 | $39,984 |
| Open | M01435145-S1-EW-SP | Sprinklers | 501 7 AVENUE, Manhattan, New York | Aug 5, 2026<1yr | Dec 9, 2026 | $8,498 |
| Open | M01419154-I1-EW-SP | Sprinklers | 60 EAST 42 STREET, Manhattan, New York | Jul 14, 2026<1yr | Dec 9, 2026 | $5,100 |
| Open | M01399155-I1-EW-SP | Sprinklers | 60 EAST 42 STREET, Manhattan, New York | Jul 7, 2026<1yr | Dec 9, 2026 | $7,500 |
| Open | M01403736-I1-EW-SP | Sprinklers | 280 PARK AVENUE, Manhattan, New York | Jun 25, 2026<1yr | Dec 9, 2026 | $9,400 |
| Open | M01404632-S3-EW-SP | Sprinklers | 360 PARK AVENUE SOUTH, Manhattan, New York | Jun 23, 2026<1yr | Dec 9, 2026 | $80,000 |
| Open | M01378092-S3-EW-SP | Plumbing | 520 FIFTH AVENUE, MANHATTAN, New York | Jun 11, 2026<1yr | Dec 9, 2026 | $40,000 |
| Open | M01389887-S3-EW-SP | Sprinklers | 200 LIBERTY STREET, MANHATTAN, New York | Jun 1, 2026<1yr | Dec 9, 2026 | $100,000 |
| Open | M01372678-S2-EW-SP | Plumbing | 400 LAFAYETTE STREET, Manhattan, New York | May 28, 2026<1yr | Dec 9, 2026 | $260,000 |
| Open | B01364982-S3-EW-SP | Sprinklers | 25 KENT AVENUE, Brooklyn, New York | May 8, 2026<1yr | Dec 9, 2026 | $53,600 |
| Closed | M01225366-I1-PL | Plumbing | 350 FIFTH AVENUE, MANHATTAN, New York | Apr 17, 2026<1yr | May 15, 2026 | $15,000 |
| Closed | M01225373-I1-EW-SP | Sprinklers | 350 FIFTH AVENUE, Manhattan, New York | Apr 17, 2026<1yr | Dec 9, 2026 | $20,000 |
| Open | M01355978-I1-EW-SP | Sprinklers | 350 FIFTH AVENUE, MANHATTAN, New York | Apr 10, 2026<1yr | Dec 9, 2026 | $145,000 |
| Open | M01371743-S3-EW-SP | Sprinklers | 555 MADISON AVENUE, MANHATTAN, New York | Apr 10, 2026<1yr | Dec 9, 2026 | $19,998.5 |
| Open | M01336775-S7-EW-SD | Standpipe | 200 LIBERTY STREET, MANHATTAN, New York | Apr 10, 2026<1yr | Dec 9, 2026 | $5,000 |
| Open | M01336775-S6-EW-SP | Sprinklers | 200 LIBERTY STREET, MANHATTAN, New York | Apr 10, 2026<1yr | Dec 9, 2026 | $27,999.3 |
| Open | M01357828-I1-EW-SP | Sprinklers | 350 FIFTH AVENUE, MANHATTAN, New York | Apr 10, 2026<1yr | Dec 9, 2026 | $30,000 |
| Open | M01363703-S3-EW-SP | Sprinklers | 501 7 AVENUE, MANHATTAN, New York | Mar 23, 2026<1yr | Dec 9, 2026 | $34,836.48 |
| Open | M01322743-I1-EW-SP | Sprinklers | 717 FIFTH AVENUE, MANHATTAN, New York | Mar 17, 2026<1yr | Dec 9, 2026 | $55,000 |
| 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 | $109,278 |
| Closed | 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 |
| Closed | M01213511-S2-EW-SP | Sprinklers | 461 5 AVENUE, MANHATTAN, New York | Dec 16, 2025<1yr | Dec 9, 2026 | $24,999.39 |
| Closed | M01317492-I1-EW-SP | Sprinklers | 485 LEXINGTON AVENUE, Manhattan, New York | Dec 16, 2025<1yr | Dec 9, 2026 | $20,000 |
| Open | M01269675-I1-EW-SP | Sprinklers | 60 EAST 42 STREET, MANHATTAN, New York | Oct 31, 2025<1yr | Dec 9, 2025 | $7,000 |
| Closed | M01282561-S2-EW-SP | Sprinklers | 885 THIRD AVENUE, Manhattan, New York | Oct 14, 2025<1yr | Dec 9, 2025 | $19,025 |
| Closed | M01274706-I1-PL | Plumbing | 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 |
| Closed | M01208733-I1-EW-SP | Sprinklers | 350 FIFTH AVENUE, Manhattan, New York | Sep 26, 2025<1yr | Dec 9, 2025 | $55,043.2 |
| Closed | 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 |
| Closed | M01271358-I1-EW-SP | Sprinklers | 350 FIFTH AVENUE, MANHATTAN, New York | Sep 12, 2025 | Dec 9, 2025 | $6,600 |
| Closed | M01224445-S3-EW-SP | Sprinklers | 799 BROADWAY, Manhattan, New York | Aug 25, 2025 | Dec 9, 2025 | $20,000 |
| Closed | M01256247-I1-EW-SP | Sprinklers | 199 WATER STREET, Manhattan, New York | Aug 25, 2025 | Aug 25, 2026 | $44,999.73 |
| Closed | M01233082-S3-EW-SP | Sprinklers | 101 PARK AVENUE, MANHATTAN, New York | Jul 15, 2025 | Dec 9, 2025 | $33,000 |
| Closed | M01223705-I1-EW-SP | Sprinklers | 356 WEST 18 STREET, MANHATTAN, New York | Jul 1, 2025 | Dec 9, 2025 | $4,000 |
| Closed | M01207686-I1-EW-SP | Plumbing | 356 WEST 18 STREET, MANHATTAN, New York | Jul 1, 2025 | Dec 9, 2025 | $26,293 |
| Open | M01179538-I1-EW-SP | Sprinklers | 529 WEST 20 STREET, MANHATTAN, New York | Jun 9, 2025 | Dec 9, 2025 | $6,000 |
| Closed | M01186234-S2-EW-SP | Sprinklers | 220 EAST 42 STREET, MANHATTAN, New York | Apr 18, 2025 | Dec 9, 2025 | $54,999.34 |
| Closed | M01186234-S3-EW-SD | Standpipe | 220 EAST 42 STREET, MANHATTAN, New York | Apr 18, 2025 | Dec 9, 2025 | $5,000 |
| Closed | M01155723-S2-EW-SP | Sprinklers | 70 WASHINGTON SQUARE SOUTH, MANHATTAN, New York | Apr 14, 2025 | Dec 9, 2025 | $499,998.6 |
| Closed | M01182978-I1-EW-SP | Sprinklers | 199 WATER STREET, MANHATTAN, New York | Apr 2, 2025 | Dec 9, 2025 | $40,999.64 |
| Closed | M01180103-S3-EW-SP | Sprinklers | 225 LIBERTY STREET, MANHATTAN, New York | Mar 24, 2025 | Dec 9, 2025 | $8,000 |
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