186 Knickerbocker Avenue
186 Knickerbocker Avenue in Bushwick, Brooklyn, has 46 open HPD violations, 11 of them class C, and no rent-stabilized units are on its tax bill, as of Oct 26, 2026. StreetSpy grade: F (32/100).
Mixed residential & commercial · 4 units · Built 1931
StreetSpy grade: F (Severe, 32/100)
- 11 immediately hazardous violations open (the class that covers no heat, pests, lead paint and similar).
- 5 open violations are classified rent-impairing under NY Multiple Dwelling Law section 302-a.
- 4 heat or hot water complaints to 311 in the last 12 months.
- 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: High (46 open, 11 class C), records as of Oct 26, 2026
- Heat and hot water: 4 complaints, 12 mo, records as of Oct 25, 2026
- Pests: Clear (Owner reported none, 3 yr), records as of Oct 28, 2026
- Safety: Medium (1 open DOB violation), records as of Oct 26, 2026
- Registration: Expired Sep 30, 2024, records as of Oct 3, 2026
Housing code violations (HPD)
46 open violations: 11 class C (immediately hazardous), 19 class B, 14 class A, 2 class I (HPD orders such as lead paint or heat orders, not a hazard class). 9 issued in the last 12 months. 58 on record. Oldest open violation issued 1988-08-23. Newest violation issued 2026-05-05.
0 closed in the last 90 days. Median 180 days from issue to close for the 1 violations closed in the last 12 months.
5 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: 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 MISSING AT PUBLIC HALL, 1st STORY, issued 2026-04-22. HPD violation 18803810
- Class C: Self-closing door not working (entrance). , 2041.1 HMC: §238 MDL and 28 RCNY §25-171: REPLACE OR REPAIR THE SELF-CLOSING THE DOORS THAT IS MISSING OR DEFECTIVE LATCH SET AT DOOR TO BUILDING ENTRANCE AT NORTH (BUILDING FRONT) , 1st STORY, issued 2026-04-22. HPD violation 18803812
- Class C: Door, lock or intercom defect (entrance). REPLACE WITH NEW THE MISSING MORTISE LOCK AT DOOR TO BUILDING ENTRANCE AT NORTH (BUILDING FRONT) , 1st STORY, issued 2026-04-22. HPD violation 18803813
- Class C: Door, lock or intercom defect (entrance). HMC: PROPERLY REPAIR OR REPLACE THE BROKEN OR DEFECTIVE WOOD SADDLE AT DOOR TO BUILDING ENTRANCE AT NORTH (BUILDING FRONT) , 1st STORY, issued 2026-04-22. HPD violation 18803814
- Class C: Door, lock or intercom defect (hallway). HMC: PROPERLY REPAIR OR REPLACE THE BROKEN OR DEFECTIVE LOCKING ASSEMBLY AT BUILDING ENTRANCE DOOR AT PUBLIC HALL, 1st STORY, issued 2023-10-12. HPD violation 16248688
- 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 3L, 3rd STORY, 1st APARTMENT FROM NORTH AT EAST (apt 3L), issued 2023-08-16. HPD violation 16165363
- 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 3L, 3rd STORY, 1st APARTMENT FROM NORTH AT EAST (apt 3L), issued 2023-08-16. HPD violation 16165362
- Class C: Broken window or sash, kitchen, 3rd floor. HMC: PROPERLY REPAIR OR REPLACE THE BROKEN OR DEFECTIVE UPPER WINDOW SASH IN THE KITCHEN LOCATED AT APT 3L, 3rd STORY, 1st APARTMENT FROM NORTH AT EAST (apt 3L), issued 2023-08-16. HPD violation 16165365
311 housing complaints
15 in the last 12 months, 27 in 5 years. Most common: Unsanitary Condition (9), Heat/Hot Water (4), Door/Window (2).
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: No bedbug filing on record for this year
- 2024: Owner reported 0 infested units
- 2023: No bedbug filing on record for this year
- 2022: No bedbug filing on record for this year
- 2021: Owner reported 0 infested units
Buildings department (DOB)
1 open DOB violation, a Local Law violation issued before 2000. 1 DOB violation 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: QUAN YUAN PROPERTY CORP. Head officer: FANG YING GAO. Managing agent: ERIC LIN. This owner has 3 buildings on record, 3 graded D or F. See the full portfolio.
Last HPD registration Jan 27, 2024. HPD registration expired Sep 30, 2024 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 3031650032, HPD building ID 321172. HPD Online, ACRIS, DOB BIS.
Nearest subway
- Jefferson St (L), 6 min walk
- Morgan Av (L), 7 min walk
- Central Av (M), 8 min walk
How the grade is calculated
| Factor | On record | Points |
|---|---|---|
| Open HPD violations | 46 open (11 class C, 19 class B, 14 class A, 2 class I). 5 rent-impairing | −45 |
| 311 housing complaints (12 mo) | 15 | −20 |
| Bedbug reports (3 yr) | None reported | 0 |
| Executed evictions (3 yr) | None | 0 |
| Housing litigation | No open cases | 0 |
| Open DOB violations | 1 open DOB violation, a Local Law violation issued before 2000 | −3 |
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.