321 Flatbush Avenue
Brooklyn, NY 11217BBL 3-01157-0010Map
Owner of record: 150 Sixth Ave. Realty LLC
321 Flatbush Avenue is a walk-up apartment building built in 1903 in Brooklyn, 11217. It has 8 residential units across 5 floors. The owner of record is 150 Sixth Ave. Realty LLC. HPD has recorded 1 housing violation here, most recently on January 18, 2016. City tax records listed 3 rent-stabilized apartments here in 2024.
- HPD violations
- 1
- DOB violations
- 2
- ECB violations
- 0
- HPD complaints
- 0
What to know
No open immediately-hazardous violations among recent records.
Date of the most recent HPD inspection that found a problem.
No balance due on recent ECB violations.
Rent stabilization
Counts come from owners' rent-stabilization filings shown on NYC Department of Finance tax bills, as extracted by JustFix. They tell you a building has stabilized apartments, not which ones.
Think your apartment is stabilized? Request its rent history from HCR (free), then check your renewal with the renewal calculator.
Violations
Most recent first. Showing up to 50 per agency.
HPD housing violations · 1
- BHazardous
Provide adequate lighting at or near the outside of the front entranceway of the building and keep same burning from sunset every day to sunrise on the day following 100 watts minimum required, light fixture present
Jan 18, 2016
Closed — Violation closed
DOB building violations · 2
- Low pressure boiler boiler required
Violation issued for failure to file annual boiler 2013 inspection report
Mar 3, 2015
Dob violation - active - Boilers boiler required
Ll6291-local law 62/91 - boilers boiler required
Mar 19, 2003
Dob violation - dismissed
ECB violations · 0
No ECB violations on record
Complaints
No HPD complaints in our records
Sales history
No recorded sales in our data
Building details
- Building type
- Walk-up apartment building (C7)
- Year built
- 1903
- Floors
- 5
- Residential units
- 8
- Building area
- 5,625 ft²
- Lot area
- 1,900 ft²
- Zoning
- R7A
- Community board
- 308
- Council district
- 35
- Block / lot
- 1157 / 10
- Assessed value
- $1,226,700
- Landmark / historic district
- Prospect Heights Historic District
HPD registration #324180, last renewed Sep 11, 2025.
Questions about 321 Flatbush Avenue
Who owns 321 Flatbush Avenue?
The owner of record in NYC Department of City Planning PLUTO data is 150 Sixth Ave. Realty LLC.
Does 321 Flatbush Avenue have violations?
Yes. NYC HPD has recorded 1 housing violations at this property.
Is 321 Flatbush Avenue rent stabilized?
NYC Department of Finance tax bills listed 3 rent-stabilized units here in 2024 (about 38% of its 8 apartments). To confirm a specific apartment, request its rent history from NYS Homes and Community Renewal.
When was 321 Flatbush Avenue built?
City records list 1903 as the year it was built.
How many apartments are in 321 Flatbush Avenue?
It has 8 residential units and 9 units in total.
Source: NYC Open Data (DCP PLUTO, HPD, DOB, ECB/OATH, DOF). Records can lag the city's systems. Data refreshed weekly.