950 St Marks Avenue

950 St Marks Avenue in Crown Heights, Brooklyn, has 12 open HPD violations, 11 of them class C, and no rent-stabilized units are on its tax bill, as of Oct 24, 2026. StreetSpy grade: D (57/100).

Multi-family walk-up · 16 units · Built 1905

StreetSpy grade: D (Poor, 57/100)

• 11 immediately hazardous violations open (the class that covers no heat, pests, lead paint and similar).
• The head officer on this registration is named on 47 buildings' registrations; 43 graded D or F.
• The owner's bedbug filings report no infested units in the last 3 years.
• No rent-stabilized units on the tax bill. Increases aren't capped by stabilization, though Good Cause Eviction may still limit them.

More open violations per unit than 5 in 10 Brooklyn buildings this size.

• Repairs: High (12 open, 11 class C), records as of Oct 24, 2026
• Heat and hot water: No complaints, 12 mo, records as of Oct 23, 2026
• Pests: Clear (Owner reported none, 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)

12 open violations: 11 class C (immediately hazardous), 1 class B, 0 class A. 4 issued in the last 12 months. 237 on record. Oldest open violation issued 2016-05-17. Newest violation issued 2026-02-23.

0 closed in the last 90 days. Median 108 days from issue to close for the 4 violations closed in the last 12 months.

• Class C: Missing window guards, throughout the apartment, 4th 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 4C, 4th STORY, 1st APARTMENT FROM EAST AT SOUTH (apt 4C), issued 2024-11-20. HPD violation 16356197
• 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 = 0; IN THE ENTIRE APARTMENT LOCATED AT APT 2D, 2nd STORY, 2nd APARTMENT FROM EAST AT SOUTH (apt 2D), issued 2024-11-20. HPD violation 13791250
• Class C: Roaches, throughout the apartment, 4th floor. HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF ROACHES IN THE ENTIRE APARTMENT LOCATED AT APT 4C, 4th STORY, 1st APARTMENT FROM EAST AT SOUTH (apt 4C), issued 2023-11-02. HPD violation 16356198
• Class C: Roaches, throughout the apartment, 3rd floor. HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF ROACHES IN THE ENTIRE APARTMENT LOCATED AT APT 3C, 3rd STORY, 1st APARTMENT FROM EAST AT SOUTH (apt 3C), issued 2023-11-02. HPD violation 16356182
• Class C: Mice, throughout the apartment, 3rd floor. HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT 3C, 3rd STORY, 1st APARTMENT FROM EAST AT SOUTH (apt 3C), issued 2023-11-02. HPD violation 16356183
• Class C: Roaches, throughout the apartment, 4th floor. HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF ROACHES IN THE ENTIRE APARTMENT LOCATED AT APT 4A, 4th STORY, 1st APARTMENT FROM NORTH AT EAST (apt 4A), issued 2023-11-02. HPD violation 16356192
• Class C: Mice, throughout the apartment, 4th floor. HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT 4A, 4th STORY, 1st APARTMENT FROM NORTH AT EAST (apt 4A), issued 2023-11-02. HPD violation 16356193
• Class C: Mice, throughout the apartment, 1st floor. HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT 1D, 1st STORY, 2nd APARTMENT FROM EAST AT SOUTH (apt 1D), issued 2023-11-02. HPD violation 16356176

311 housing complaints

2 in the last 12 months, 42 in 5 years. Most common: Paint/Plaster (1), Unsanitary Condition (1).

Bedbugs

The owner reported 0 infested units in the last 3 years of filings. 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 0 infested units
• 2023: Owner reported 0 infested units
• 2022: Owner reported 0 infested units
• 2021: Owner reported 0 infested units

Buildings department (DOB)

1 open DOB violation, a Local Law violation issued before 2000. 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

No rent-stabilized units on the tax bill.

Owner and management

Owner: 950 ST MARKS APTS LLC. Head officer: MARTIN KIRZNER. Managing agent: BEN SCHWADEL. This owner has 47 buildings on record, 43 graded D or F. See the full portfolio.

Last HPD registration Aug 6, 2025. Registration on file through Sep 1, 2026; renewal not yet in the city's data.

Tax lot and city IDs

BBL 3012300023, HPD building ID 375072. HPD Online, ACRIS, DOB BIS.

Nearest subway

• Kingston Av (3), 7 min walk
• Kingston-Throop Avs (C), 8 min walk
• Crown Hts-Utica Av (3, 4), 11 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.