# 2450 Nostrand Avenue, Brooklyn, NY

Public-record building report from Know Your Building (https://knowyourbuilding.nyc/building/3076110073/2450-nostrand-avenue-brooklyn).
BBL 3076110073 · BIN 3207877 · Generated 2026-10-24

## Concern level: high

- 11 open class-C HPD violations (immediately hazardous) — about 1 per 5 apartments
- 10 of those issued in the last 3 years
- 4 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 50 stabilized units for 2023, of about 50 apartments.
Registered units by year: 2018: 50, 2019: 50, 2020: 50, 2021: 50, 2022: 50, 2023: 50.
No public data says which specific apartment is stabilized; tenants can request their rent history from NYS Homes and Community Renewal.

## The building

built 1955, 6 floors, 50 residential units.

## HPD housing-maintenance violations

24 open (class C immediately hazardous: 11, class B hazardous: 7, class A non-hazardous: 6); 152 on record.
10 open class-C violations were issued in the last 3 years.

## DOB building violations

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

## OATH/ECB violations and fines

0 active of 21 on record; 0 decided by default; $0 balance due.

## 311 housing complaints

5 in the last 12 months; 74 on record.
Most common: HEAT/HOT WATER (29), UNSANITARY CONDITION (11), PLUMBING (8), PAINT/PLASTER (5), DOOR/WINDOW (5).

## Bedbugs

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

## Evictions

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

## Housing court (HPD litigation)

3 cases on record, 0 open, 3 tenant-initiated, 0 with a court finding of harassment.

## Landlord

- CorporateOwner: SIVAN REALTY LLC
- Agent: DSJ MANAGEMENT CORP
- HeadOfficer: MEHMET KALKAN
- Officer: CARL FRAIMAN
- SiteManager: MAVRICK

The same owner is linked to 37 other buildings (MEHMET KALKAN at 247 SEELEY STREET).

## 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/3076110073/2450-nostrand-avenue-brooklyn