Is 677 Union St rent stabilized?
677 Union St is a registered NYC rent-stabilized building in Park Slope, Brooklyn (11215). It has about 8 apartments, built in 1920.
Also written as 677 Union Street — or 677 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. Its 1920 construction date sits close to the 1920 median for stabilized buildings tracked in the neighborhood. HPD lists no open violations at this address — one of 203 such buildings among the 624 this site tracks in the neighborhood. Of the 15 violations on record at the address, 4 are class C — HPD's immediately hazardous grade. Tenants have filed 28 HPD complaints at the address, none of them in the last twelve months.
Building details
| Borough | Brooklyn |
| Neighborhood | Park Slope |
| ZIP | 11215 |
| Year built | 1920 |
| Apartments | 8 |
| Rent-stabilized | Yes — DHCR registered |
| Stabilization code | MULTIPLE DWELLING A, GARDEN COMPLEX |
| BBL | 3009520067 |
Owner & management
| Owner | SOUTH BROOKLYN MUTUAL HDFC |
| Managing agent | FIFTH AVENUE COMMITTEE INC |
Building conditions
| HPD violations | 0 open / 15 total · 1 in last 12 mo |
| HPD complaints | 0 open / 28 total |
| HPD registration last filed | September 10, 2025 |