110 4 Avenue, Brooklyn is a residential building in Park Slope, Brooklyn, New York City. As of June 8, 2026, this building has 2 open HPD violations: 0 Class A, 0 Class B, and 2 Class C (immediately hazardous). In the last 12 months, 137 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.

110 4 Avenue, Brooklyn

📍 Park Slope, Brooklyn 🔨 Built 2007 🏢 49 units 🏷️ Class D6
Residential
CRITICAL RISK

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

311 Complaint Summary

0
Last 30 Days
0
Last 90 Days
137
Last 365 Days
⚠️ Complaints are up 2540% compared to the previous 6 months.
Complaint Types (Last 12 Months)
HEAT/HOT WATER
83(61%)
ELECTRIC
23(17%)
PLUMBING
20(15%)
GENERAL
9(7%)
UNSANITARY CONDITION
2(1%)
📅 Monthly Activity Heatmap (Last 12 Months)
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HPD Housing Violations

0 Class A
0 Class B
2 Class C
Class C § 27-2029 ADM CODE PROVIDE AN ADEQUATE SUPPLY OF HEAT FOR THE APARTMENT IN THE ENTIRE APARTMENT LOCATED AT APT 7A, 7th STORY, 1st APARTMENT FROM WEST AT NORTH
2026-02-01

Violation ID: #18609934

Current Status: Open

Date Issued: 2026-02-01T00:00:00.000

Description: § 27-2029 ADM CODE PROVIDE AN ADEQUATE SUPPLY OF HEAT FOR THE APARTMENT IN THE ENTIRE APARTMENT LOCATED AT APT 7A, 7th STORY, 1st APARTMENT FROM WEST AT NORTH

Class C § 27-2028, 2032 ADM CODE PROVIDE AN ADEQUATE SUPPLY OF HEAT FROM AN APPROVED CENTRAL HEATING SYSTEM, OR AN APPROVED SYSTEM OF GAS OR ELECTRICAL HEATING IN GOOD OPERATING CONDITION FOR THE DWELLING UNIT IN THE ENTIRE APARTMENT LOCATED AT APT 6F, 6th STORY, 1st APARTMENT FROM WEST AT NORTH
2026-02-01

Violation ID: #18613281

Current Status: Open

Date Issued: 2026-02-01T00:00:00.000

Description: § 27-2028, 2032 ADM CODE PROVIDE AN ADEQUATE SUPPLY OF HEAT FROM AN APPROVED CENTRAL HEATING SYSTEM, OR AN APPROVED SYSTEM OF GAS OR ELECTRICAL HEATING IN GOOD OPERATING CONDITION FOR THE DWELLING UNIT IN THE ENTIRE APARTMENT LOCATED AT APT 6F, 6th STORY, 1st APARTMENT FROM WEST AT NORTH

⚠️ 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

A Violation Severity
2 Open Violations
0 Class A
0 Class B
2 Class C

Few or no Class C violations on record.

Score: 94/100 · Based on current open violations. Higher Class C violations = lower score.

First violation on record: 2026-02-01 · Most recent: 2026-02-01

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

Neighborhood Comparison

How 110 4 Avenue, Brooklyn compares to other tracked buildings in Park Slope in the last 12 months.

0
Average building in Park Slope
137
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
515 6 AVENUE, BROOKLYN 439 17 CRITICAL View →
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 →
412 8 AVENUE, BROOKLYN 121 50 CRITICAL View →
Data last updated: June 8, 2026 · Source: NYC Open Data

⚠️ Serious Concerns Found

This building has 137 complaints and 2 Class C (immediately hazardous) violations on record in the last 12 months. Review the full violation list carefully before signing any lease.

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📊 NYC Building Insights

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

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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.