# 580 East 21 Street, Brooklyn, NY

Public-record building report from Know Your Building (https://knowyourbuilding.nyc/building/3051840041/580-east-21-street-brooklyn).
BBL 3051840041 · BIN 3119501 · Generated 2026-10-24

## Concern level: high

- 21 open class-C HPD violations (immediately hazardous) — about 1 per 3 apartments
- 15 of those issued in the last 3 years
- 8 open rent-impairing violation(s)
- 5 active DOB violation(s)
- 5 evictions executed in the last 3 years

Scale: low, moderate, high, severe. Set from open hazardous violations relative to building size, raised by distress signals (HPD's Alternative Enforcement Program, court harassment findings, evictions, unpaid OATH/ECB fines, open housing-court cases, a sold tax lien). It describes the public record, not any one apartment.

## Rent stabilization

Likely rent-stabilized. The owner registered 63 stabilized units for 2023, of about 64 apartments.
Registered units by year: 2018: 63, 2019: 63, 2020: 63, 2021: 63, 2022: 63, 2023: 63.
No public data says which specific apartment is stabilized; tenants can request their rent history from NYS Homes and Community Renewal.

## The building

built 1961, 6 floors, 64 residential units.

## HPD housing-maintenance violations

95 open (class C immediately hazardous: 21, class B hazardous: 51, class A non-hazardous: 23); 1,675 on record.
15 open class-C violations were issued in the last 3 years.
8 open violations are rent-impairing.

## DOB building violations

5 active (0 issued in the last 3 years); 26 on record.

## OATH/ECB violations and fines

0 active of 28 on record; 0 decided by default; $0 balance due.

## 311 housing complaints

97 in the last 12 months; 107 on record.
Most common: UNSANITARY CONDITION (28), DOOR/WINDOW (25), PAINT/PLASTER (19), HEAT/HOT WATER (10), PLUMBING (6).

## Bedbugs

7 annual bedbug filings by the owner; latest reports 0 infested units.

## Evictions

5 executed in the last 3 years; 11 on record.

## Housing court (HPD litigation)

41 cases on record, 0 open, 23 tenant-initiated, 0 with a court finding of harassment.

## Landlord

- CorporateOwner: 580 E 21ST ST LLC
- Agent: J.K MGMT CORP
- HeadOfficer: DAVID BLAU
- SiteManager: JACOB SCHWARTZ

The same owner is linked to 6 other buildings (DAVID BLAU at 303 BEVERLY ROAD).

## Sources and limits

NYC Open Data (HPD, DOB, OATH/ECB, 311, DOF, PLUTO) and NYS DHCR building lists. This is a screening signal from public records, not legal advice; records lag and contain errors. Full interactive report with violation details and maps: https://knowyourbuilding.nyc/building/3051840041/580-east-21-street-brooklyn