Is 399 4th Ave rent stabilized?
399 4th Ave is a registered NYC rent-stabilized building in Park Slope, Brooklyn (11215). It has about 6 apartments, built in 1931.
Also written as 399 4th Avenue — or 399 4th Ave, Brooklyn, NY 11215.
How this building compares
With about 6 apartments it is smaller than 75% of the 623 rent-stabilized buildings this site tracks in Park Slope. Its 1931 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 207 such buildings among the 624 this site tracks in the neighborhood. Of the 2 violations on record at the address, 1 is class C — HPD's immediately hazardous grade. Tenants have filed 5 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 | 1931 |
| Apartments | 6 |
| Rent-stabilized | Yes — DHCR registered |
| Stabilization code | MULTIPLE DWELLING A |
| BBL | 3009930003 |
Owner & management
| Owner | HG Building Blocks LLC 334 East 35th St. · Brooklyn, NY 11203 |
| Managing agent | Brownstone Management LLC |
Building conditions
| HPD violations | 0 open / 2 total |
| HPD complaints | 0 open / 5 total |
| HPD registration last filed | July 9, 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 399 4th Ave →
Other rent-stabilized buildings in Park Slope
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