📊 311tracker
515 6 Avenue, Brooklyn is a residential building in Park Slope, Brooklyn, New York City. As of June 8, 2026, this building has 17 open HPD violations: 1 Class A, 2 Class B, and 14 Class C (immediately hazardous). In the last 12 months, 439 complaints have been filed against this building via NYC 311. The most common complaint type is HEAT/HOT WATER. The building's overall risk rating is CRITICAL RISK. Data source: NYC Open Data, updated daily. Last verified: June 8, 2026.

515 6 Avenue, Brooklyn

📍 Park Slope, Brooklyn 🔨 Built 1920 🏢 9 units 🏷️ Class C1
Residential
CRITICAL RISK

Safety Rating: Immediately hazardous — Immediately hazardous violations — serious concerns.

311 Complaint Summary

12
Last 30 Days
85
Last 90 Days
439
Last 365 Days
⚠️ Complaints are up 175% compared to the previous 6 months.
Complaint Types (Last 12 Months)
HEAT/HOT WATER
367(84%)
FLOORING/STAIRS
20(5%)
DOOR/WINDOW
18(4%)
PLUMBING
11(3%)
UNSANITARY CONDITION
8(2%)
SAFETY
6(1%)
GENERAL
4(1%)
WATER LEAK
3(1%)
📅 Monthly Activity Heatmap (Last 12 Months)
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun

HPD Housing Violations

1 Class A
2 Class B
14 Class C
Class A §27-2104(B) HMC POST A PROPER NOTICE REGARDING RENT STABILIZATION LAW, IN A FORM APPROVED BY THE COMMISSIONER, IN A CONSPICUOUS LOCATION WITHIN THE COMMON AREA AT THE BUILDINGS ENTRANCE. FOR MORE INFORMATION ABOUT SIGNAGE REQUIREMENTS, PLEASE VISIT: HTTPS://WWW.NYC.GOV/SITE/HPD/SERVICES-AND-INFORMATION/REQUIRED-SIGNAGE.PAGE
2026-03-24 ▼

Violation ID: #18734369

Current Status: Open

Date Issued: 2026-03-24T00:00:00.000

Description: §27-2104(B) HMC POST A PROPER NOTICE REGARDING RENT STABILIZATION LAW, IN A FORM APPROVED BY THE COMMISSIONER, IN A CONSPICUOUS LOCATION WITHIN THE COMMON AREA AT THE BUILDINGS ENTRANCE. FOR MORE INFORMATION ABOUT SIGNAGE REQUIREMENTS, PLEASE VISIT: HTTPS://WWW.NYC.GOV/SITE/HPD/SERVICES-AND-INFORMATION/REQUIRED-SIGNAGE.PAGE

Class B § 27-2005 ADM CODE REPAIR THE ROOF SO THAT IT WILL NOT LEAK ABOVE THE CEILING AT PUBLIC HALL, 4th STORY
2025-11-06 ▼

Violation ID: #18350522

Current Status: Open

Date Issued: 2025-11-06T00:00:00.000

Description: § 27-2005 ADM CODE REPAIR THE ROOF SO THAT IT WILL NOT LEAK ABOVE THE CEILING AT PUBLIC HALL, 4th STORY

Class B § 27-2005 ADM CODE PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE FIRE RETARDANT PLASTER AT CEILING AT PUBLIC HALL, 4th STORY
2025-11-06 ▼

Violation ID: #18350521

Current Status: Open

Date Issued: 2025-11-06T00:00:00.000

Description: § 27-2005 ADM CODE PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE FIRE RETARDANT PLASTER AT CEILING AT PUBLIC HALL, 4th STORY

Class C 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 FRONT YARD
2025-09-24 ▼

Violation ID: #18250145

Current Status: Open

Date Issued: 2025-09-24T00:00:00.000

Description: 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 FRONT YARD

Class C HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT 1R, 1st STORY, 1st APARTMENT FROM EAST AT SOUTH
2025-02-18 ▼

Violation ID: #17703718

Current Status: Open

Date Issued: 2025-02-18T00:00:00.000

Description: HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT 1R, 1st STORY, 1st APARTMENT FROM EAST AT SOUTH

Class C HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT 1R, 1st STORY, 1st APARTMENT FROM SOUTH AT WEST
2025-02-15 ▼

Violation ID: #17697106

Current Status: Open

Date Issued: 2025-02-15T00:00:00.000

Description: HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT 1R, 1st STORY, 1st APARTMENT FROM SOUTH AT WEST

Class C HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT 1R, 1st STORY, 1st APARTMENT FROM NORTH AT EAST
2025-02-10 ▼

Violation ID: #17685978

Current Status: Open

Date Issued: 2025-02-10T00:00:00.000

Description: HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT 1R, 1st STORY, 1st APARTMENT FROM NORTH AT EAST

Class C HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT 1R, 1st STORY, 1st APARTMENT FROM NORTH AT EAST
2025-02-06 ▼

Violation ID: #17677975

Current Status: Open

Date Issued: 2025-02-06T00:00:00.000

Description: HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT 1R, 1st STORY, 1st APARTMENT FROM NORTH AT EAST

Class C HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT 1R, 1st STORY, 1st APARTMENT FROM NORTH AT EAST
2025-02-01 ▼

Violation ID: #17665545

Current Status: Open

Date Issued: 2025-02-01T00:00:00.000

Description: HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT 1R, 1st STORY, 1st APARTMENT FROM NORTH AT EAST

Class C HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT 1R, 1st STORY, 1st APARTMENT FROM NORTH AT EAST
2024-12-10 ▼

Violation ID: #17544444

Current Status: Open

Date Issued: 2024-12-10T00:00:00.000

Description: HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT 1R, 1st STORY, 1st APARTMENT FROM NORTH AT EAST

Class C HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT 1R, 1st STORY, 1st APARTMENT FROM NORTH AT EAST
2024-11-13 ▼

Violation ID: #17416061

Current Status: Open

Date Issued: 2024-11-13T00:00:00.000

Description: HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT 1R, 1st STORY, 1st APARTMENT FROM NORTH AT EAST

Class C HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT 1R, 1st STORY, 1st APARTMENT FROM NORTH AT EAST
2024-10-13 ▼

Violation ID: #17344123

Current Status: Open

Date Issued: 2024-10-13T00:00:00.000

Description: HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT 1R, 1st STORY, 1st APARTMENT FROM NORTH AT EAST

Class C HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT 1R, 1st STORY, 1st APARTMENT FROM EAST AT SOUTH
2024-10-09 ▼

Violation ID: #17335562

Current Status: Open

Date Issued: 2024-10-09T00:00:00.000

Description: HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT 1R, 1st STORY, 1st APARTMENT FROM EAST AT SOUTH

Class C HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT 1R, 1st STORY, 1st APARTMENT FROM NORTH AT EAST
2024-09-04 ▼

Violation ID: #17246331

Current Status: Open

Date Issued: 2024-09-04T00:00:00.000

Description: HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT 1R, 1st STORY, 1st APARTMENT FROM NORTH AT EAST

Class C HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT 1R, 1st STORY, 1st APARTMENT FROM NORTH AT EAST
2024-08-08 ▼

Violation ID: #17176509

Current Status: Open

Date Issued: 2024-08-08T00:00:00.000

Description: HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT 1R, 1st STORY, 1st APARTMENT FROM NORTH AT EAST

Class C HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT 1R, 1st STORY, 1st APARTMENT FROM EAST AT SOUTH
2024-07-02 ▼

Violation ID: #17090509

Current Status: Open

Date Issued: 2024-07-02T00:00:00.000

Description: HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT 1R, 1st STORY, 1st APARTMENT FROM EAST AT SOUTH

Class C HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT 1R, 1st STORY, 1st APARTMENT FROM NORTH AT EAST
2024-03-22 ▼

Violation ID: #16762149

Current Status: Open

Date Issued: 2024-03-22T00:00:00.000

Description: HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT 1R, 1st STORY, 1st APARTMENT FROM NORTH AT EAST

⚠️ What does Class C mean?

Class C violations are classified as immediately hazardous by the HPD (e.g. lack of heat or hot water, active mold, severe rodent infestations, lead-based paint, or carbon monoxide detector issues). Landlords are legally required to resolve these immediately.

Violation History & Landlord Accountability

C Violation Severity
17 Open Violations
1 Class A
2 Class B
14 Class C

Multiple Class C violations open.

Score: 56.9/100 · Based on current open violations. Higher Class C violations = lower score.

First violation on record: 2024-03-22 · Most recent: 2026-03-24

A Few/no Class C  ·  B Limited Class C  ·  C Multiple Class C  ·  D Significant  ·  F High hazard load

Neighborhood Comparison

How 515 6 Avenue, Brooklyn compares to other tracked buildings in Park Slope in the last 12 months.

0
Average building in Park Slope
439
This building
1
NYC Average

Nearby Buildings

Top complained-about buildings in the same neighborhood (Park Slope) in the last 12 months.

Address Complaints Violations Risk Score Actions
38 SIXTH AVENUE, BROOKLYN 271 79 CRITICAL View →
89 VISITATION PLACE, BROOKLYN 224 190 CRITICAL View →
230 ST JOHNS PLACE, BROOKLYN 211 47 CRITICAL View →
110 4 AVENUE, BROOKLYN 137 2 CRITICAL View →
412 8 AVENUE, BROOKLYN 121 50 CRITICAL View →

Data Disclaimer: All compliance data on this page is synced directly from municipal reports published via NYC Open Data. Complaint counts and HPD housing violations are updated daily. Building characteristics (built year, unit count, and building class) are derived from the NYC Department of City Planning's PLUTO database.

Data last updated: June 8, 2026 · Source: NYC Open Data

⚠️ Serious Concerns Found

This building has 439 complaints and 14 Class C (immediately hazardous) violations on record in the last 12 months. Review the full violation list carefully before signing any lease.

Get notified of any new activity →
Free forever. Cancel anytime.

📊 NYC Building Insights

Read our data analysis of NYC's worst landlords, most complained buildings, and Grade A properties.

Read the blog →
About This Data

Complaint data is sourced from the NYC 311 Service Requests dataset (NYC Open Data). Violation data is from the HPD Housing Maintenance Code Violations dataset. Building info is based on NYC PLUTO by NYC Department of City Planning.

All records are public-domain municipal data provided as-is. Updated daily. Last verified: June 8, 2026.