Is 129 6th Ave rent stabilized?
129 6th Ave is a registered NYC rent-stabilized building in Prospect Heights, Brooklyn (11217). It has about 6 apartments, built in 1880.
Also written as 129 6th Avenue — or 129 6th Ave, Brooklyn, NY 11217.
How this building compares
With about 6 apartments it is smaller than 83% of the 262 rent-stabilized buildings this site tracks in Prospect Heights. It went up in 1880, 35 years before the 1915 median for stabilized buildings tracked in the neighborhood. HPD lists no open violations at this address — one of 46 such buildings among the 263 this site tracks in the neighborhood. Of the 20 violations on record at the address, 3 are class C — HPD's immediately hazardous grade, and none of them are still open. Tenants have filed 9 HPD complaints at the address, none of them in the last twelve months.
Building details
| Borough | Brooklyn |
| Neighborhood | Prospect Heights |
| ZIP | 11217 |
| Year built | 1880 |
| Apartments | 6 |
| Rent-stabilized | Yes — DHCR registered |
| Stabilization code | MULTIPLE DWELLING A |
| BBL | 3009420004 |
Owner & management
| Owner | FLENNO REALTY CORP 30 TILTON ROAD · Middletown, NJ 07748 |
| Managing agent | ALBERT COLUCCI |
Building conditions
| HPD violations | 0 open / 20 total |
| HPD complaints | 0 open / 9 total |
| HPD registration last filed | July 11, 2025 |
Full building report — $9
Frequently asked questions
Is 129 6th Ave rent stabilized?
129 6th Ave in Prospect Heights, Brooklyn is registered as rent stabilized in the New York State DHCR 2024 rent-stabilized building files, where its stabilization code is MULTIPLE DWELLING A. 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 129 6th Ave?
129 6th Ave (BBL 3009420004) has about 6 residential apartments and was built in 1880, from NYC PLUTO. PLUTO counts the building's units; it does not say how many of them are rent stabilized.