Is 523 Knickerbocker Ave rent stabilized?
523 Knickerbocker Ave is a registered NYC rent-stabilized building in Bushwick (East), Brooklyn (11221). It has about 8 apartments, built in 1905.
Also written as 523 Knickerbocker Avenue — or 523 Knickerbocker Ave, Brooklyn, NY 11221.
How this building compares
With about 8 apartments it is larger than 70% of the 641 rent-stabilized buildings this site tracks in Bushwick (East). It went up in 1905, 26 years before the 1931 median for stabilized buildings tracked in the neighborhood. HPD lists 2 open violations here, about one for every 4 apartments — below the 0.8 per apartment median for tracked buildings in the neighborhood. Of the 137 violations on record at the address, 27 are class C — HPD's immediately hazardous grade. Tenants have filed 169 HPD complaints at the address, none of them in the last twelve months.
Building details
| Borough | Brooklyn |
| Neighborhood | Bushwick (East) |
| ZIP | 11221 |
| Year built | 1905 |
| Apartments | 8 |
| Rent-stabilized | Yes — DHCR registered |
| Stabilization code | MULTIPLE DWELLING A |
| BBL | 3033260008 |
Owner & management
| Owner | 523 ASSETS LLC 95 DELANCEY ST #206 · New York, NY 10002 |
| Managing agent | 523 ASSETS LLC |
Building conditions
| HPD violations | 2 open / 137 total |
| HPD complaints | 0 open / 169 total |
| HPD registration last filed | September 5, 2025 |