# 653 Knickerbocker Avenue, Brooklyn, NY

Public-record building report from Know Your Building (https://knowyourbuilding.nyc/building/3033650102/653-knickerbocker-avenue-brooklyn).
BBL 3033650102 · BIN 3076911 · Generated 2026-10-23

## Concern level: severe

- 9 open class-C HPD violations (immediately hazardous) across 8 apartments
- 5 of those issued in the last 3 years
- 5 active DOB violation(s)

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 3 stabilized units for 2023, of about 8 apartments.
Registered units by year: 2018: 4, 2019: 3, 2020: 3, 2021: 3, 2022: 3, 2023: 3.
No public data says which specific apartment is stabilized; tenants can request their rent history from NYS Homes and Community Renewal.

## The building

built 1931, 4 floors, 8 residential units.

## HPD housing-maintenance violations

18 open (class C immediately hazardous: 9, class B hazardous: 7, class A non-hazardous: 2); 457 on record.
5 open class-C violations were issued in the last 3 years.

## DOB building violations

5 active (0 issued in the last 3 years); 22 on record.

## OATH/ECB violations and fines

10 active of 24 on record; 0 decided by default; $0 balance due.

## 311 housing complaints

3 in the last 12 months; 62 on record.
Most common: PLUMBING (10), UNSANITARY CONDITION (9), ELECTRIC (8), FLOORING/STAIRS (8), WATER LEAK (8).

## Bedbugs

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

## Evictions

0 executed in the last 3 years; 0 on record.

## Housing court (HPD litigation)

11 cases on record, 0 open, 7 tenant-initiated, 0 with a court finding of harassment.

## Landlord

- CorporateOwner: 653 KNICKERBOCKER REALTY LLC
- Agent: TOM ROSENBERG
- HeadOfficer: TOM ROSENBERG

The same owner is linked to 29 other buildings (TOM ROSENBERG at 543 BEDFORD AVE).

## 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/3033650102/653-knickerbocker-avenue-brooklyn