General Construction for Duplex Conversion at 39 Putnam Avenue, Brooklyn
39 PUTNAM AVENUE, BROOKLYN, 11238 · Clinton Hill
What was permitted
A significant general construction project is underway at 39 Putnam Avenue in Brooklyn's Clinton Hill neighborhood, involving the rearrangement of an existing two-family layout into two duplex units. The total number of dwelling units remains unchanged.
This permit was issued on June 15, 2026, with a substantial estimated project cost of $342,000. HARROW NY INC is the general contractor managing this extensive renovation.
Homeowners in Clinton Hill undertaking major renovations like this duplex conversion can expect project costs to be in the hundreds of thousands, with this project estimated at $342,000.
What it cost
Issued
June 15, 2026
Expires
January 2, 2027
License
General Contractor
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Filed by HARROW NY INC · 54 permits across 23 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 | 548271977 |
| Work Permit # | B01339258-I1-GC |
| Job Filing Number | — |
| Work Type | General Construction |
| Status | Permit Issued |
| Job Description | Rearrangement of existing two family layout creating two duplexes. One spanning 1st to 2nd floor and the other spanning 2nd to 3rd floors. Total number of dwelling units of two is not changing. |
| Floor / Unit | Floor Number(s) 1, Floor Number(s) 2, Floor Number(s) 3, Attic |
| Estimated Cost | $342,000 |
| Approved | June 10, 2026 |
| Issued | June 15, 2026 |
| Expires | January 2, 2027 |
| BBL | — |
| BIN | — |
Property Owner
GREENBROOK PARTNERS
Greg Fournier