424 6th Avenue

424 6th Avenue in Park Slope, Brooklyn, has 106 open HPD violations, 16 of them class C, and no rent-stabilized units are on its tax bill, as of Oct 26, 2026. StreetSpy grade: D (52/100).

Co-op · Multi-family walk-up · 12 units · Built 1900

A cooperative: apartments are owned as shares, so a rental here is a sublet that usually needs board approval and may be limited to one or two years. Co-op units are not rent-stabilized.

StreetSpy grade: D (Poor, 52/100)

• 16 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.
• Had 2 rent-stabilized units on the 2007 tax bill and none on the latest one; ask how the apartment left stabilization.

• Repairs: High (106 open, 16 class C), records as of Oct 26, 2026
• Heat and hot water: 1 complaint, 12 mo, records as of Oct 25, 2026
• Pests: Clear (No bedbug filing, 3 yr), records as of Oct 28, 2026
• Safety: Clear (1 open DOB violation), records as of Oct 26, 2026
• Registration: Expired Sep 30, 2024, records as of Oct 3, 2026

How the grade works

Housing code violations (HPD)

106 open violations: 16 class C (immediately hazardous), 58 class B, 30 class A, 2 class I (HPD orders such as lead paint or heat orders, not a hazard class). 1 issued in the last 12 months. 114 on record. Oldest open violation issued 2006-08-15. Newest violation issued 2026-04-30.

HPD recorded no violation closed here 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: Self-closing door not working, 2nd floor. , 27-2007, 27-2041.1 HMC, §238, § 309; § 107 (2) ( C) MDL AND 28 RCNY §25-171: REPLACE OR REPAIR THE SELF-CLOSING DOORS THAT IS MISSING OR DEFECTIVE HINGES IN THE ENTRANCE LOCATED AT APT 2, 2nd STORY, 2nd APARTMENT FROM WEST AT NORTH (apt 2), issued 2024-02-20. HPD violation 16681370
• Class C: No heat / heating defect, throughout the apartment, 2nd floor. PROVIDE AN ADEQUATE SUPPLY OF HEAT FOR THE APARTMENT IN THE ENTIRE APARTMENT LOCATED AT APT 2, 2nd STORY, 2nd APARTMENT FROM WEST AT NORTH (apt 2), issued 2024-02-20. HPD violation 16681369
• 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 & ON BOILER ROOM DOOR., issued 2008-05-22. HPD violation 960797
• Class C: No heat / heating defect (hallway). D26-17.10 ADM CODE POST NOTICE, IN FORM APPROVED BY THE DEPARTMENT, STATING THE NAME AND LOCATION OF THE PERSON DESIGNATED BY THE OWNER TO HAVE KEY TO BUILDING'S HEATING SYSTEM 1 STY PUBLIC HALL & ON BOILER ROOM DOOR., issued 2008-05-22. HPD violation 960774
• Class C: Lead paint hazard, 1st door from the east, south wall, bathroom, 4th floor. - CORRECT THE LEAD-BASED PAINT HAZARD - PRESUMED LEAD PAINT THAT IS PEELING OR ON A DETERIORATED SUBSURFACE USING WORK PRACTICES SET FORTH IN 28 RCNY ?11-06(B)(2) 1st DOOR FROM EAST AT SOUTH WALL IN THE BATHROOM LOCATED AT APT 8, 4th STORY, 2nd APARTMENT FROM NORTH AT EAST (apt 8), issued 2006-09-08. HPD violation 6355405
• Class C: Electrical defect, throughout the apartment, 4th floor. & 309 M/D LAW ABATE THE NUISANCE CONSISTING OF ELECTRIC EXTENSION CORD THROUGHOUT ROOMS IN THE ENTIRE APARTMENT LOCATED AT APT 8, 4th STORY, 2nd APARTMENT FROM NORTH AT EAST (apt 8), issued 2006-08-30. HPD violation 6338923
• Class C: Lead paint hazard, east wall, 3rd room from the north, 4th floor. - CORRECT THE LEAD-BASED PAINT HAZARD - PRESUMED LEAD PAINT THAT IS PEELING OR ON A DETERIORATED SUBSURFACE USING WORK PRACTICES SET FORTH IN 28 RCNY ?11-06(B)(2) 1st DOOR FRAME FROM NORTH AT EAST WALL IN THE 3rd ROOM FROM NORTH LOCATED AT APT 8, 4th STORY, 2nd APARTMENT FROM WEST AT NORTH (apt 8), issued 2006-08-23. HPD violation 6327043
• Class C: Lead paint hazard, 1st door from the east, south wall, bathroom, 4th floor. - CORRECT THE LEAD-BASED PAINT HAZARD - PRESUMED LEAD PAINT THAT IS PEELING OR ON A DETERIORATED SUBSURFACE USING WORK PRACTICES SET FORTH IN 28 RCNY ?11-06(B)(2) 1st DOOR FROM EAST AT SOUTH WALL, 1st WINDOW FRAME FROM NORTH AT EAST WALL IN THE BATHROOM LOCATED AT APT 8, 4th STORY, 2nd APARTMENT FROM WEST AT NORTH (apt 8), issued 2006-08-23. HPD violation 6327041

311 housing complaints

1 in the last 12 months, 4 in 5 years. Most common: Heat/Hot Water (1).

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)

1 open DOB violation, a Local Law violation issued before 2000. 2 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: 420 6TH AVE HOUSING CORP. Head officer: CHRISTOPHER JUDD. Managing agent: ELLEN BRICKMAN. See the full portfolio.

Last HPD registration Sep 12, 2023. 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 3010050042, HPD building ID 132038. HPD Online, ACRIS, DOB BIS.

Nearest subway

• 7 Av (F, G), 5 min walk
• 4 Av-9 St (R), 6 min walk
• 4 Av-9 St (F, G), 7 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.