Is 401 E 23rd St rent stabilized?
401 E 23rd St is a registered NYC rent-stabilized building in Flatbush, Brooklyn (11226). It has about 23 apartments, built in 1925.
Also written as 401 East 23rd Street — or 401 E 23rd St, Brooklyn, NY 11226.
How this building compares
With about 23 apartments it is smaller than 62% of the 564 rent-stabilized buildings this site tracks in Flatbush. Its 1925 construction date sits close to the 1931 median for stabilized buildings tracked in the neighborhood. HPD lists 60 open violations here, about 2.6 per apartment — above the 0.9 per apartment median for tracked buildings in the neighborhood. Of the 387 violations on record at the address, 97 are class C — HPD's immediately hazardous grade. Tenants have filed 1,336 HPD complaints at the address, 5 of them in the last twelve months.
Building details
| Borough | Brooklyn |
| Neighborhood | Flatbush |
| ZIP | 11226 |
| Year built | 1925 |
| Apartments | 23 |
| Rent-stabilized | Yes — DHCR registered |
| Stabilization code | MULTIPLE DWELLING A |
| BBL | 3052090040 |
Owner & management
| Owner | SYS REALTY LLC 3810 14TH AVE · BROOKLYN, NY 11218 |
| Managing agent | SAM KLEIN |
Building conditions
| HPD violations | 60 open / 387 total · 40 in last 12 mo |
| HPD complaints | 11 open / 1336 total |
| HPD registration last filed | August 25, 2025 |