346 1 STREET, Brooklyn, 11215 · Park Slope
This permit allows for significant general construction work at 346 1 Street in Brooklyn's Park Slope neighborhood, involving a vertical extension to add a third story. The project also includes a horizontal extension into the rear yard.
Issued on July 28, 2026, the estimated project cost for this expansion is $498,095.38. SYROS CONSTRUCTION CORP is the General Contractor for this substantial home addition.
Homeowners in Park Slope looking to expand should be aware that a recent permit for a 3rd-story addition and rear yard extension at 346 1 Street has an estimated cost of nearly $500,000.
Issued
July 28, 2026
Expires
May 1, 2027
License
General Contractor
See what a project like this costs near you
We'll compare your scope against real permits and licensed contractors in the area.
Start my estimate →Free · takes 60 seconds · no account needed
Filed by SYROS CONSTRUCTION CORP · 10 permits across 3 neighborhoods
View the official permit record
Tracking number, work description, cost, and dates
| Tracking Number | 426634246 |
| Work Permit # | B01320238-I1-GC |
| Job Filing Number | — |
| Work Type | General Construction |
| Status | Permit Issued |
| Job Description | PROPOSE VERTICAL EXTENSION TO AN EXISTING 2-STORY + BASEMENT BY ADDING A 3RD STORY AND EXTENDING HORIZONTALLY INTO THE REAR YARD. |
| Floor / Unit | Cellar, Basement, Floor Number(s) 1, Floor Number(s) 2, Floor Number(s) 3, Roof |
| Estimated Cost | $498,095 |
| Approved | January 12, 2026 |
| Issued | July 28, 2026 |
N/A
AVI FISHER
| Expires | May 1, 2027 |
| BBL | — |
| BIN | — |
Claim this project page to showcase your pricing and attract new clients.