Is 900 Union St rent stabilized?
900 Union St is a registered NYC rent-stabilized building in Park Slope, Brooklyn (11215). It has about 8 apartments, built in 1887.
Also written as 900 Union Street — or 900 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 1887, 33 years before 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. Tenants have filed 2 HPD complaints at the address, none of them in the last twelve months.
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Building details
| Borough | Brooklyn |
| Neighborhood | Park Slope |
| ZIP | 11215 |
| Year built | 1887 |
| Apartments | 8 |
| Rent-stabilized | Yes — DHCR registered |
| Stabilization code | MULTIPLE DWELLING A |
| BBL | 3010660021 |
Owner & management
| Owner | Anthony Vallelong 102 Galloway Avenue · Staten Island, NY 10302 |
| Managing agent | Anthony Vallelong |
Building conditions
| HPD violations | 0 open / 13 total · 1 in last 12 mo |
| HPD complaints | 0 open / 2 total |
| HPD registration last filed | July 29, 2025 |
Full building report — $9
📄 Get the full building report — $9. How this building's violation record compares citywide, who owns it and what else they own, and a pre-filled DHCR rent-history request. One-time, no account needed. The report also states plainly what the data cannot tell you. Get the report for 900 Union St →
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