What was permitted
Homeowners in the Downtown Brooklyn-DUMBO-Boerum Hill area can review permits for mechanical system modifications, such as the one at 300 Jay Street. This project involves upgrading existing systems with new AC units and associated piping, impacting building comfort and efficiency.
Issued on September 23, 2026, this permit for mechanical systems has an estimated project cost of $98,747. TUNDRA AIR LLC is the general contractor responsible for this significant upgrade.
Plan a similar project
Want work like this done at your place?
Tell us what you have in mind. We scope it, price it against work like this in Brooklyn, and lines up the right contractor. You approve; we handle the back-and-forth.
View the official permit record
Tracking number, work description, cost and dates
View the official permit record
Tracking number, work description, cost and dates
| Tracking number | 439932214 |
|---|---|
| Work permit # | B01293905-I1-MS |
| Job filing number | — |
| Work type | Mechanical Systems |
| Status | Permit Issued |
| Job description | Modification of existing mechanical system include new AC/ condensing units and associated piping per plans filed herewith. |
| Floor / unit | Floor Number(s) 001 through 001 |
| Estimated cost | $98,747 |
| Approved | May 11, 2026 |
| Issued | September 23, 2026 |
| Expires | June 7, 2027 |
| BBL | — |
| BIN | — |
Property owner
Cuny
Medhat Attara
Related searches