Is 873 Union St rent stabilized?
873 Union St is a registered NYC rent-stabilized building in Park Slope, Brooklyn (11215). It has about 8 apartments, built in 1885.
Also written as 873 Union Street — or 873 Union St, Brooklyn, NY 11215.
How this building compares
With about 8 apartments it sits near the middle of the 623 rent-stabilized buildings this site tracks in Park Slope, where the median building has 8. It went up in 1885, 35 years before the 1920 median for stabilized buildings tracked in the neighborhood. HPD lists 2 open violations here, about one for every 4 apartments — matching the median for tracked buildings in the neighborhood. Of the 8 violations on record at the address, 1 is class C — HPD's immediately hazardous grade. Tenants have filed 6 HPD complaints at the address, 1 of them in the last twelve months.
Building details
| Borough | Brooklyn |
| Neighborhood | Park Slope |
| ZIP | 11215 |
| Year built | 1885 |
| Apartments | 8 |
| Rent-stabilized | Yes — DHCR registered |
| Stabilization code | MULTIPLE DWELLING A |
| BBL | 3010630067 |
Owner & management
| Owner | 873 UNION STREET LTD PART 917 8TH AVENUE · Brooklyn, NY 11215 |
| Managing agent | KOTSONIS ORGANIZATION LLC. |
Building conditions
| HPD violations | 2 open / 8 total |
| HPD complaints | 0 open / 6 total |
| HPD registration last filed | October 11, 2025 |