2450 Nostrand Avenue

2450 Nostrand Avenue in Midwood, Brooklyn, has 24 open HPD violations, 11 of them class C, and 50 of 50 units are rent-stabilized, as of Oct 24, 2026. StreetSpy grade: D (62/100).

Multi-family elevator · 50 units · Built 1955

StreetSpy grade: D (Poor, 62/100)

• 11 immediately hazardous violations open (the class that covers no heat, pests, lead paint and similar).
• 3 heat or hot water complaints to 311 in the last 12 months.
• The owner's bedbug filings report 2 infested units over the last 3 years.
• 50 of 50 units are rent-stabilized.

More open violations per unit than 6 in 10 Brooklyn buildings this size.

• Repairs: Medium (24 open, 11 class C), records as of Oct 24, 2026
• Heat and hot water: 3 complaints, 12 mo, records as of Oct 23, 2026
• Pests: Medium (2 infested units, 3 yr), records as of Oct 26, 2026
• Safety: Clear (1 open DOB violation), records as of Oct 23, 2026
• Registration: Renewal not yet in city data, records as of Oct 3, 2026

How the grade works

Housing code violations (HPD)

24 open violations: 11 class C (immediately hazardous), 7 class B, 6 class A. 6 issued in the last 12 months. 152 on record. Oldest open violation issued 2020-10-05. Newest violation issued 2026-06-04.

1 closed in the last 90 days. Median 504 days from issue to close for the 13 violations closed in the last 12 months.

• Class C: Mice, throughout the apartment, 6th floor. HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT 6A, 6th STORY, 2nd APARTMENT FROM SOUTH AT WEST (apt 6A), issued 2025-03-17. HPD violation 17762409
• Class C: No hot water, throughout the apartment, 6th floor. & 309 M/D LAW ABATE THE NUISANCE CONSISTING OF HOT WATER EXCEEDING MXAMUN TEMPERATURE OF 130 DEGREES AT ALL HOT WATER FIXTURES IN THE ENTIRE APARTMENT LOCATED AT APT 6A, 6th STORY, 2nd APARTMENT FROM SOUTH AT WEST (apt 6A), issued 2025-03-17. HPD violation 17762410
• Class C: Roaches, throughout the apartment, 6th floor. HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF ROACHES IN THE ENTIRE APARTMENT LOCATED AT APT 6A, 6th STORY, 2nd APARTMENT FROM SOUTH AT WEST (apt 6A), issued 2025-03-17. HPD violation 17762408
• Class C: Roaches, throughout the apartment, 5th floor. HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF ROACHES IN THE ENTIRE APARTMENT LOCATED AT APT 6A, 5th STORY, 2nd APARTMENT FROM SOUTH AT WEST (apt 6A), issued 2025-02-03. HPD violation 17659351
• Class C: Mice, throughout the apartment, 5th floor. HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT 6A, 5th STORY, 2nd APARTMENT FROM SOUTH AT WEST (apt 6A), issued 2025-02-03. HPD violation 17659350
• Class C: Missing window guards, throughout the apartment, 2nd floor. HMC INSTALL THE MISSING OR REPAIR/REPLACE THE DEFECTIVE WINDOW GUARD(S) IN ACCORDANCE WITH THE SPECIFICATIONS OF THE NEW YORK CITY HEALTH CODE SECTION 24 RCNY CHAPTER 12. WG TO INSTALL = 2, WG TO REPLACE = 0, WG TO REPAIR = 0 IN THE ENTIRE APARTMENT LOCATED AT APT 3F, 2nd STORY, 1st APARTMENT FROM EAST AT SOUTH (apt 3F), issued 2024-12-26. HPD violation 17575203
• Class C: Mice, throughout the apartment, 6th floor. HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT 6A, 6th STORY, 2nd APARTMENT FROM SOUTH AT WEST (apt 6A), issued 2024-12-09. HPD violation 17533359
• Class C: Missing window guards, throughout the apartment, 2nd floor. HMC INSTALL THE MISSING OR REPAIR/REPLACE THE DEFECTIVE WINDOW GUARD(S) IN ACCORDANCE WITH THE SPECIFICATIONS OF THE NEW YORK CITY HEALTH CODE SECTION 24 RCNY CHAPTER 12. WG TO INSTALL = 3, WG TO REPLACE = 0, WG TO REPAIR = 1 IN THE ENTIRE APARTMENT LOCATED AT APT 3F, 2nd STORY, 1st APARTMENT FROM EAST AT SOUTH (apt 3F), issued 2024-08-16. HPD violation 17194449

311 housing complaints

4 in the last 12 months, 50 in 5 years. Most common: Heat/Hot Water (3), Door/Window (1).

Bedbugs

The owner reported 2 infested units in the last 3 years. HPD's bedbug filings are self-reported by the owner once a year; HPD does not inspect to confirm them.

• 2026: No bedbug filing on record for this year
• 2025: Owner reported 0 infested units
• 2024: Owner reported 2 infested, 2 treated, 0 re-infested
• 2023: Owner reported 0 infested units
• 2022: Owner reported 3 infested, 3 treated, 0 re-infested
• 2021: No bedbug filing on record for this year

Buildings department (DOB)

1 open DOB violation. 3 DOB violations on record. Check on DOB BIS.

Evictions and housing court

0 executed evictions in the last 3 years (2 on record). 0 open HPD cases; 0 harassment findings.

Rent stabilization

50 of 50 units rent-stabilized as of 2024. Stabilized renewals: 0% for one year and 0% for two years under RGB Order #58 (Oct 1, 2026 to Sep 30, 2027).

Rent-stabilized units on city tax bills: 50 in 2024, 50 in 2007. Source: DOF tax bills for 2007 and 2024; years with no bill on file are left out.

Owner and management

Owner: SIVAN REALTY LLC. Head officer: MEHMET KALKAN. Managing agent: DSJ MANAGEMENT CORP. This owner has 19 buildings on record, 5 graded D or F. See the full portfolio.

Last HPD registration Aug 14, 2025. Registration on file through Sep 1, 2026; renewal not yet in the city's data.

Tax lot and city IDs

BBL 3076110073, HPD building ID 346506. HPD Online, ACRIS, DOB BIS.

Nearest subway

• Flatbush Av-Brooklyn College (2, 5), 11 min walk
• Avenue J (Q), 15 min walk
• Avenue H (Q), 17 min walk

How the grade is calculated

Sources: NYC HPD Housing Maintenance Code Violations, NYC 311 Service Requests, NYC HPD Bedbug Reporting, NYC Marshal Evictions (DOI), NYC HPD Housing Litigations, NYC DOB Violations, NYC DOF tax bills (via JustFix Who Owns What portfolio API, v2), NYC HPD Property Registration. Methodology. Report generated 2026-10-27.