Is 340 Prospect Ave rent stabilized?
340 Prospect Ave is a registered NYC rent-stabilized building in Windsor Terrace-South Slope, Brooklyn (11215). It has about 6 apartments, built in 1931.
Also written as 340 Prospect Avenue — or 340 Prospect Ave, Brooklyn, NY 11215.
How this building compares
With about 6 apartments it is smaller than 64% of the 178 rent-stabilized buildings this site tracks in Windsor Terrace-South Slope. Its 1931 construction date sits close to the 1931 median for stabilized buildings tracked in the neighborhood. HPD lists 7 open violations here, about 1.2 per apartment — above the one for every 2 apartments median for tracked buildings in the neighborhood.
Building details
| Borough | Brooklyn |
| Neighborhood | Windsor Terrace-South Slope |
| ZIP | 11215 |
| Year built | 1931 |
| Apartments | 6 |
| Rent-stabilized | Yes — DHCR registered |
| Stabilization code | MULTIPLE DWELLING A |
| BBL | 3008680019 |
Owner & management
| Owner | CALDER REALTY,LLC 26 CENTRE DRIVE · MANHASSET, NY 11030 |
| Managing agent | SJC SERVICE SOLUTIONS, INC. |
Building conditions
| HPD violations | 7 open / 7 total |
| HPD registration last filed | August 21, 2025 |
Full building report — $9
Frequently asked questions
Is 340 Prospect Ave rent stabilized?
340 Prospect Ave in Windsor Terrace-South Slope, Brooklyn is registered as rent stabilized in the New York State DHCR 2024 rent-stabilized building files. 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 340 Prospect Ave?
340 Prospect Ave (BBL 3008680019) has about 6 residential apartments and was built in 1931, from NYC PLUTO. PLUTO counts the building's units; it does not say how many of them are rent stabilized, and the DHCR files this site is built on register the building rather than its individual apartments.
Other rent-stabilized buildings in Windsor Terrace-South Slope
See all in Windsor Terrace-South Slope →