General Construction Project at 309 President Street, Brooklyn
309 PRESIDENT STREET, BROOKLYN, 11231 · Carroll Gardens-Cobble Hill-Gowanus-Red Hook
What was permitted
Homeowners in the Carroll Gardens-Cobble Hill-Gowanus-Red Hook area can see the details of a significant renovation project. This permit covers alterations to convert an existing two-family dwelling into a single-family home, requiring a new Certificate of Occupancy.
This project was issued a permit on May 26, 2026, with an estimated cost of $456,000. The general contractor for this substantial alteration is BLACK SQUARE BUILDERS COR.
A major conversion project in Carroll Gardens-Cobble Hill-Gowanus-Red Hook was permitted with an estimated cost of $456,000.
What it cost
Issued
May 26, 2026
Expires
May 5, 2027
License
General Contractor
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Filed by BLACK SQUARE BUILDERS COR · 20 permits across 9 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 | 246082224 |
| Work Permit # | B01339016-I1-GC |
| Job Filing Number | — |
| Work Type | General Construction |
| Status | Permit Issued |
| Job Description | Herewith filing alterations to convert an existing 2 family to a single family, as per plans submitted. New Certificate of Occupancy to be obtained. |
| Floor / Unit | Cellar, Basement, Floor Number(s) 1, Floor Number(s) 2, Floor Number(s) 3 |
| Estimated Cost | $456,000 |
| Approved | May 6, 2026 |
| Issued | May 26, 2026 |
| Expires | May 5, 2027 |
| BBL | — |
| BIN | — |
Property Owner
309 HQ LLC
Scott Puryear