Is 9 4th Pl rent stabilized?
9 4th Pl is a registered NYC rent-stabilized building in Carroll Gardens-Cobble Hill-Gowanus-Red Hook, Brooklyn (11231). It has about 8 apartments, built in 1920.
Also written as 9 4th Place — or 9 4th Pl, Brooklyn, NY 11231.
How this building compares
HPD lists 4 open violations here, about 0.5 per apartment — above the one for every 4 apartments median for tracked buildings in Carroll Gardens-Cobble Hill-Gowanus-Red Hook. Of the 21 violations on record at the address, 6 are class C — HPD's immediately hazardous grade, and 1 of them is still open. HPD issued 1 new violation at the address in the last twelve months. Tenants have filed 20 HPD complaints at the address, 1 of them in the last twelve months.
Building details
| Borough | Brooklyn |
| Neighborhood | Carroll Gardens-Cobble Hill-Gowanus-Red Hook |
| ZIP | 11231 |
| Year built | 1920 |
| Apartments | 8 |
| Rent-stabilized | Yes — DHCR registered |
| Stabilization code | MULTIPLE DWELLING A |
| BBL | 3003700052 |
Owner & management
| Owner | GREGORY O'CONNELL 175 VAN DYKE ST #322A · BKLYN, NY 11231 |
| Managing agent | O'C CONSTRUCTION GROUP INC |
Building conditions
| HPD violations | 4 open / 21 total · 1 in last 12 mo |
| HPD complaints | 0 open / 20 total |
| HPD registration last filed | November 5, 2025 |
Full building report — $9
Frequently asked questions
Is 9 4th Pl rent stabilized?
9 4th Pl in Carroll Gardens-Cobble Hill-Gowanus-Red Hook, Brooklyn is registered as rent stabilized in the New York State DHCR 2024 rent-stabilized building files, where its stabilization code is MULTIPLE DWELLING A. Registration is recorded for the building, not for each apartment in it, so an individual unit here can still have been deregulated — ask the landlord or DHCR for that apartment's rent history before relying on it.
How many apartments are at 9 4th Pl?
9 4th Pl (BBL 3003700052) has about 8 residential apartments and was built in 1920, from NYC PLUTO. PLUTO counts the building's units; it does not say how many of them are rent stabilized.
Other rent-stabilized buildings in Carroll Gardens-Cobble Hill-Gowanus-Red Hook
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