7424 21st Avenue
7424 21st Avenue in Bensonhurst, Brooklyn, has 83 open HPD violations, 39 of them class C, and no rent-stabilized units are on its tax bill, as of Oct 24, 2026. StreetSpy grade: F (30/100).
Multi-family walk-up · 6 units · Built 1927
StreetSpy grade: F (Severe, 30/100)
- 39 immediately hazardous violations open (the class that covers no heat, pests, lead paint and similar).
- 3 open violations are classified rent-impairing under NY Multiple Dwelling Law section 302-a.
- 238 heat or hot water complaints to 311 in the last 12 months.
More open violations per unit than 9 in 10 Brooklyn buildings this size.
- Repairs: High (83 open, 39 class C), records as of Oct 24, 2026
- Heat and hot water: 238 complaints, 12 mo, records as of Oct 23, 2026
- Pests: Clear (No bedbug filing, 3 yr), records as of Oct 26, 2026
- Safety: High (3 open DOB violations), records as of Oct 23, 2026
- Registration: Renewal not yet in city data, records as of Oct 3, 2026
Housing code violations (HPD)
83 open violations: 39 class C (immediately hazardous), 25 class B, 19 class A. 50 issued in the last 12 months. 376 on record. Oldest open violation issued 2018-10-24. Newest violation issued 2026-08-05.
0 closed in the last 90 days. Median 272 days from issue to close for the 55 violations closed in the last 12 months.
3 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: 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 3B, 3rd STORY, 1st APARTMENT FROM WEST AT NORTH (apt 3B), issued 2026-06-10. HPD violation 18996601
- Class C: Rats (hallway). 567 (C) § 27-2017, 27-2017.1, 27-2017.4, 27-2017.5, 27-2017.8, 27-2019, 27-2021 HMC: ABATE THE NUISANCE CONSISTING OF EVIDENCE OF RATS AND ALL UNDERLYING CAUSES CREATING THE PEST INFESTATIONS, BY USING INTEGRATED PEST MANAGEMENT (IPM), ELIMINATE ALL BURROW ENTRY AND PASSAGEWAYS, PEST NESTS, HOLES, GAPS OR CRACKS IN WALLS, CEILINGS, FLOORS, FIXING LEAKS AND MANAGING GARBAGE IN PUBLIC AREAS. EVIDENCE FOUND AT .. YARD, issued 2026-06-10. HPD violation 18996610
- 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 3B, 3rd STORY, 1st APARTMENT FROM WEST AT NORTH (apt 3B), issued 2026-06-04. HPD violation 18978632
- 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 3B, 3rd STORY, 1st APARTMENT FROM WEST AT NORTH (apt 3B), issued 2026-06-04. HPD violation 18978633
- Class C: Roaches (hallway). HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF ROACHES AT PUBLIC HALL, issued 2026-06-04. HPD violation 18978637
- 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 MAILBOX FULL PH 9293128451 FOR PERSON WHO HAVE KEY FROM BOILER ROOM AT PUBLIC HALL, 1st STORY, issued 2026-05-07. HPD violation 18853447
- 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 3B, 3rd STORY, 1st APARTMENT FROM NORTH AT EAST (apt 3B), issued 2026-05-07. HPD violation 18853449
- 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 3B, 3rd STORY, 1st APARTMENT FROM NORTH AT EAST (apt 3B), issued 2026-05-07. HPD violation 18853450
311 housing complaints
354 in the last 12 months, 824 in 5 years. Most common: Heat/Hot Water (238), Unsanitary Condition (71), Door/Window (35), Plumbing (10).
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)
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: CheongWing LAU. This owner has 2 buildings on record, 1 graded D or F. See the full portfolio.
Last HPD registration Feb 6, 2026. Registration on file through Sep 1, 2026; renewal not yet in the city's data.
Tax lot and city IDs
BBL 3062180041, HPD building ID 145351. HPD Online, ACRIS, DOB BIS.
Nearest subway
- Bay Pkwy (N), 9 min walk
- 20 Av (N), 12 min walk
- 20 Av (D), 12 min walk
How the grade is calculated
| Factor | On record | Points |
|---|---|---|
| Open HPD violations | 83 open (39 class C, 25 class B, 19 class A). 3 rent-impairing | −45 |
| 311 housing complaints (12 mo) | 354 | −20 |
| Bedbug reports (3 yr) | None reported | 0 |
| Executed evictions (3 yr) | None | 0 |
| Housing litigation | No open cases | 0 |
| Open DOB violations | 3 open DOB violations, all 3 Local Law violations issued before 2000 | −5 |
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.