174 St Marks Avenue

174 St Marks Avenue in Prospect Heights, Brooklyn, has 19 open HPD violations, 8 of them class C, and no rent-stabilized units are on its tax bill, as of Oct 26, 2026. StreetSpy grade: D (55/100).

Multi-family walk-up · 8 units · Built 1880

StreetSpy grade: D (Poor, 55/100)

• 8 immediately hazardous violations open (the class that covers no heat, pests, lead paint and similar).
• No housing complaints to 311 in the last 12 months.
• 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 7 in 10 Brooklyn buildings this size.

• Repairs: High (19 open, 8 class C), records as of Oct 26, 2026
• Heat and hot water: No complaints, 12 mo, records as of Oct 25, 2026
• Pests: Clear (Owner reported none, 3 yr), records as of Oct 28, 2026
• Safety: High (3 open DOB violations), records as of Oct 26, 2026
• Registration: Through Sep 1, 2027, records as of Oct 3, 2026

How the grade works

Housing code violations (HPD)

19 open violations: 8 class C (immediately hazardous), 5 class B, 6 class A. 0 issued in the last 12 months. 33 on record. Oldest open violation issued 2008-08-20. Newest violation issued 2025-06-11.

0 closed in the last 90 days. Median 292 days from issue to close for the 1 violations closed in the last 12 months.

• Class C: Lead paint hazard. - CORRECT FAILURE TO NOTIFY OCCUPANTS AND/OR TO INVESTIGATE LEAD-BASED PAINT HAZARDS., issued 2021-03-23. HPD violation 14082680
• Class C: Lead paint hazard, throughout the apartment, 2nd floor. -CERTIFY COMPLIANCE WITH LEAD-BASED PAINT HAZARD CONTROL REQUIREMENTS DURING PERIOD OF UNIT VACANCY BY SUBMITTING REQUIRED SUPPORTING DOCUMENTATION AND AFFIDAVITS FOR APARTMENT ...... IN THE ENTIRE APARTMENT LOCATED AT APT 2, 2nd STORY, 1st APARTMENT FROM SOUTH AT WEST (apt 2), issued 2021-03-23. HPD violation 14082672
• Class C: No heat / heating defect (hallway). POST NOTICE, IN FORM APPROVED BY THE DEPARTMENT, STATING THE NAME AND LOCATION OF THE PERSON DESIGNATED BY THE OWNER TO HAVE KEY TO BUILDINGS HEATING SYSTEM AT THE 1ST STORY PUBLIC HALL, issued 2021-03-23. HPD violation 14082676
• Class C: Lead paint hazard. : CORRECT FAILURE TO PROVIDE TO THE DEPARTMENT WITHIN 45 DAYS OF DEMAND ALL RECORDS REQUIRED TO BE MAINTAINED BY OWNER PURSUANT TO LOCAL LAW 1 OF 2004 RELATED TO LEAD-BASED PAINT NOTICES, INSPECTIONS AND REMEDIATION/ABATEMENT ACTIVITIES. (apt 1), issued 2021-03-12. HPD violation 14068882
• Class C: Roaches, throughout the apartment, 1st floor. HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF ROACHES IN THE ENTIRE APARTMENT LOCATED AT APT 1, 1st STORY, 1st APARTMENT FROM SOUTH AT WEST (apt 1), issued 2021-01-19. HPD violation 13988313
• Class C: Self-closing door not working, 1st floor. , 2007, 204.1 HMC CODE: ARRANGE AND MAKE SELF-CLOSING THE DOORS .. IN THE ENTRANCE LOCATED AT APT 1, 1st STORY, 1st APARTMENT FROM SOUTH AT WEST (apt 1), issued 2021-01-19. HPD violation 13988311
• 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 1, 1st STORY, 1st APARTMENT FROM SOUTH AT WEST (apt 1), issued 2021-01-19. HPD violation 13988314
• Class C: Missing window guards, throughout the apartment, 1st 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 = 0; WG TO REPLACE = 0; WG TO REPAIR = 3; IN THE ENTIRE APARTMENT LOCATED AT APT 1, 1st STORY, 1st APARTMENT FROM SOUTH AT WEST (apt 1), issued 2021-01-19. HPD violation 13988318

311 housing complaints

0 in the last 12 months, 0 in 5 years.

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: Owner reported 0 infested units
• 2025: No bedbug filing on record for this year
• 2024: No bedbug filing on record for this year
• 2023: Owner reported 0 infested units
• 2022: No bedbug filing on record for this year
• 2021: No bedbug filing on record for this year

Buildings department (DOB)

3 open DOB violations, all 3 Local Law violations issued before 2000. 3 DOB violations on record. Check on DOB BIS.

Evictions and housing court

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

Rent stabilization

No rent-stabilized units on the tax bill.

Owner and management

Owner: D N-DIAYE 174 ST. MARKS, LLC. Head officer: DIANA NDIAYE. Managing agent: SILVER BRICK MANAGEMENT. See the full portfolio.

Last HPD registration Jul 29, 2026, valid through Sep 1, 2027.

Tax lot and city IDs

BBL 3011510019, HPD building ID 374648. HPD Online, ACRIS, DOB BIS.

Nearest subway

• 7 Av (B, Q), 3 min walk
• Grand Army Plaza (2, 3), 5 min walk
• Bergen St (2, 3), 5 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 2026-10-28.