Is 505 Union Ave rent stabilized?
505 Union Ave is a registered NYC rent-stabilized building in Williamsburg, Brooklyn (11211). It has about 23 apartments, built in 1930.
Also written as 505 Union Avenue — or 505 Union Ave, Brooklyn, NY 11211.
How this building compares
With about 23 apartments it is larger than 69% of the 620 rent-stabilized buildings this site tracks in Williamsburg. It went up in 1930, 15 years after the 1915 median for stabilized buildings tracked in the neighborhood. HPD lists 1 open violation here, about one for every 23 apartments — below the one for every 10 apartments median for tracked buildings in the neighborhood. HPD issued 1 new violation at the address in the last twelve months. Tenants have filed 2 HPD complaints at the address, 2 of them in the last twelve months.
Building details
| Borough | Brooklyn |
| Neighborhood | Williamsburg |
| ZIP | 11211 |
| Year built | 1930 |
| Apartments | 23 |
| Rent-stabilized | Yes — DHCR registered |
| Stabilization code | MULTIPLE DWELLING A, GARDEN COMPLEX, 421-A (16) |
| BBL | 3023150021 |
Owner & management
| Owner | 505 UNION AVE LLC 144 SPENCER · Brooklyn, NY 11205 |
| Managing agent | MENDY GREEN |
Building conditions
| HPD violations | 1 open / 4 total · 1 in last 12 mo |
| HPD complaints | 0 open / 2 total |
| HPD registration last filed | August 22, 2025 |
Full building report — $9
Frequently asked questions
Is 505 Union Ave rent stabilized?
505 Union Ave in Williamsburg, Brooklyn is registered as rent stabilized in the New York State DHCR 2024 rent-stabilized building files, where its stabilization codes are MULTIPLE DWELLING A, GARDEN COMPLEX and 421-A (16). Registration is recorded for the building, not for each apartment in it, so an individual unit here can still have been deregulated — ask the landlord or DHCR for that apartment's rent history before relying on it.
How many apartments are at 505 Union Ave?
505 Union Ave (BBL 3023150021) has about 23 residential apartments and was built in 1930, from NYC PLUTO. PLUTO counts the building's units; it does not say how many of them are rent stabilized.