Mechanical Systems Upgrade at 420 Blake Avenue, Brooklyn
420 BLAKE AVENUE, BROOKLYN, 11212 · Brownsville
What was permitted
For those in Brownsville considering large-scale building system upgrades, this permit offers insight. The project involved mechanical work for a central boiler plant and the replacement of the domestic hot water system.
This significant mechanical systems project in Brooklyn was issued a permit on May 21, 2026, with an estimated cost of $500,000. KORDUN CONSTRUCTION CORP was the general contractor.
A $500,000 mechanical system overhaul at 420 Blake Avenue in Brownsville highlights major infrastructure investment.
What it cost
Issued
May 21, 2026
Expires
August 5, 2026
License
General Contractor
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Filed by KORDUN CONSTRUCTION CORP · 76 permits across 7 neighborhoods
View the official permit record
Tracking number, work description, cost, and dates
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View the official permit record
Tracking number, work description, cost, and dates
| Tracking Number | 609340297 |
| Work Permit # | B00463377-I1-MS |
| Job Filing Number | — |
| Work Type | Mechanical Systems |
| Status | Permit Issued |
| Job Description | MECHANICAL WORK FOR CENTRAL BOILER PLANT AND DOMESTIC HOT WATER SYSTEM REPLACEMENT (VAN DYKE BLDG #15) AS PER THE PLANS FILED HEREWITH. |
| Floor / Unit | Cellar |
| Estimated Cost | $500,000 |
| Approved | July 29, 2021 |
| Issued | May 21, 2026 |
| Expires | August 5, 2026 |
| BBL | — |
| BIN | — |
Property Owner
NYCHA
OLIVER OSTERWIND