171 St Marks Avenue
171 St Marks Avenue in Prospect Heights, Brooklyn, has 75 open HPD violations, 5 of them class C, and no rent-stabilized units are on its tax bill, as of Oct 25, 2026. StreetSpy grade: F (49/100).
Multi-family walk-up · 5 units · Built 1880
StreetSpy grade: F (Severe, 49/100)
- 150 open HPD violations per 10 units, about 15 per apartment. The grade is F for that alone.
- 5 immediately hazardous violations open (the class that covers no heat, pests, lead paint and similar).
- 8 open violations are classified rent-impairing under NY Multiple Dwelling Law section 302-a.
- 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 9 in 10 Brooklyn buildings this size.
- Repairs: Grade capped at F (75 open, 5 class C), records as of Oct 25, 2026
- Heat and hot water: No complaints, 12 mo, records as of Oct 25, 2026
- Pests: Clear (No bedbug filing, 3 yr), records as of Oct 27, 2026
- Safety: High (5 open DOB violations), records as of Oct 23, 2026
- Registration: Expired Sep 1, 2025, records as of Oct 3, 2026
Housing code violations (HPD)
75 open violations: 5 class C (immediately hazardous), 53 class B, 17 class A. 1 issued in the last 12 months. 87 on record. Oldest open violation issued 2001-08-27. Newest violation issued 2026-05-05.
HPD recorded no violation closed here in the last 12 months.
8 open violations are classified rent-impairing under NY Multiple Dwelling Law section 302-a. Section 302-a; NY Courts guidance on getting repairs.
- Class C: REPLACE WITH NEW THE BROKEN OR DEFECTIVE SPEINKLER HEADS PAINTED 4 STY B ROOM 11, issued 2001-08-27. HPD violation 2105125
- 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 1 STY PUBLIC HALL AND ON BOILER ROOM DOOR., issued 2001-08-27. HPD violation 2105119
- Class C: No heat / heating defect (basement). PROVIDE READY ACCESS TO BUILDINGS HEATING SYSTEM CELLAR DOOR LOCKED., issued 2001-08-27. HPD violation 2105120
- Class C: Floor or stair defect, kitchen. PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE WOOD FLOOR KITCHEN 3 STY REAR APT 11 ER1. LOCATED AT APT 11 (apt 11), issued 2001-08-27. HPD violation 2105121
- Class C: No hot water, bathroom. PROVIDE HOT WATER AT ALL HOT WATER FIXTURES KITCHEN AND BATHROOM 3 STY REAR APT 11. LOCATED AT APT 11 (apt 11), issued 2001-08-27. HPD violation 2162005
- Class B: Lighting defect. D26-19.05 ADM CODE PROVIDE ADEQUATE LIGHT OF NOT LESS THAN 60 WATTS INCANDESCENT OR EQUIVALENT ILLUMINATION ALL STYS PUB HALLS., issued 2008-05-27. HPD violation 2161992
- Class B: Pest infestation (basement). D26-10.01 ADM CODE & 309 M/D LAW ABATE THE NUISANCE CONSISTING OF VERMIN & WATER BUGS CELLAR THRU OUT R124., issued 2008-05-27. HPD violation 2105091
- Class B: No heat / heating defect (basement). D26-10.01 ADM CODE REPLACE WITH NEW THE MISSING FUSABLE LINK TO OUTER AIR BOILER RO OM CELLAR R125., issued 2008-05-27. HPD violation 2105092
311 housing complaints
0 in the last 12 months, 0 in 5 years.
Bedbugs
No bedbug filing on record for 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: No bedbug filing on record for this year
- 2024: No bedbug filing on record for this year
- 2023: No bedbug filing on record for this year
- 2022: No bedbug filing on record for this year
- 2021: No bedbug filing on record for this year
Buildings department (DOB)
5 open DOB violations, 4 of them Local Law violations issued before 2000. 5 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: raphael myrthil. Managing agent: raphael myrthil. See the full portfolio.
Last HPD registration Nov 20, 2024. HPD registration expired Sep 1, 2025 and had not been renewed as of Oct 3, 2026. Buildings with 3+ units must register with HPD every year.
Tax lot and city IDs
BBL 3011440081, HPD building ID 374640. HPD Online, ACRIS, DOB BIS.
Nearest subway
- 7 Av (B, Q), 4 min walk
- Grand Army Plaza (2, 3), 6 min walk
- Bergen St (2, 3), 6 min walk
How the grade is calculated
| Factor | On record | Points |
|---|---|---|
| Open HPD violations | 75 open (5 class C, 53 class B, 17 class A). 8 rent-impairing | −45 |
| 311 housing complaints (12 mo) | None | 0 |
| Bedbug reports (3 yr) | None reported | 0 |
| Executed evictions (3 yr) | None | 0 |
| Housing litigation | No open cases | 0 |
| Open DOB violations | 5 open DOB violations, 4 of them Local Law violations issued before 2000 | −5 |
| Density cap | 150 per 10 units (about 15 per apartment). Grade capped at F: 100 or more open HPD violations per 10 units. | −1 |
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.