377 Montgomery Street, Brooklyn is a residential building in Prospect Heights, Brooklyn, New York City. As of June 8, 2026, this building has 23 open HPD violations: 4 Class A, 3 Class B, and 16 Class C (immediately hazardous). In the last 12 months, 296 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.

377 Montgomery Street, Brooklyn

📍 Prospect Heights, Brooklyn 🔨 Built 1928 🏢 97 units 🏷️ Class D1
Residential
CRITICAL RISK

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

311 Complaint Summary

3
Last 30 Days
58
Last 90 Days
296
Last 365 Days
⚠️ Complaints are up 358% compared to the previous 6 months.
Complaint Types (Last 12 Months)
HEAT/HOT WATER
170(61%)
GENERAL
39(14%)
PLUMBING
16(6%)
UNSANITARY CONDITION
15(5%)
WATER LEAK
14(5%)
APPLIANCE
13(5%)
PAINT/PLASTER
6(2%)
FLOORING/STAIRS
6(2%)
📅 Monthly Activity Heatmap (Last 12 Months)
Jul
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Feb
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Jun

HPD Housing Violations

4 Class A
3 Class B
16 Class C
Class A § 27-2005 ADM CODE REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR THE NORTH WALL AND SOUTH WALL IN THE 2nd ROOM FROM NORTH LOCATED AT APT D15, 5th STORY, 4th APARTMENT FROM NORTH AT EAST , SECTION AT EAST
2026-02-26

Violation ID: #18669325

Current Status: Open

Date Issued: 2026-02-26T00:00:00.000

Description: § 27-2005 ADM CODE REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR THE NORTH WALL AND SOUTH WALL IN THE 2nd ROOM FROM NORTH LOCATED AT APT D15, 5th STORY, 4th APARTMENT FROM NORTH AT EAST , SECTION AT EAST

Class A § 27-2017.3 HMC: TRACE AND REPAIR THE SOURCE AND ABATE THE VISIBLE MOLD CONDITION... LESS THAN 10 SQ FT AT EAST WALL IN THE BATHROOM LOCATED AT APT D15, 5th STORY, 4th APARTMENT FROM NORTH AT EAST , SECTION AT EAST
2026-02-26

Violation ID: #18669318

Current Status: Open

Date Issued: 2026-02-26T00:00:00.000

Description: § 27-2017.3 HMC: TRACE AND REPAIR THE SOURCE AND ABATE THE VISIBLE MOLD CONDITION... LESS THAN 10 SQ FT AT EAST WALL IN THE BATHROOM LOCATED AT APT D15, 5th STORY, 4th APARTMENT FROM NORTH AT EAST , SECTION AT EAST

Class A § 27-2011 ADM CODE CLEANSE TO THE SATISFACTION OF THIS DEPARTMENT THE FLOOR INSIDE OF ELEVATOR , SECTION ''EAST''
2026-02-20

Violation ID: #18659396

Current Status: Open

Date Issued: 2026-02-20T00:00:00.000

Description: § 27-2011 ADM CODE CLEANSE TO THE SATISFACTION OF THIS DEPARTMENT THE FLOOR INSIDE OF ELEVATOR , SECTION ''EAST''

Class A § 27-2013 ADM CODE PAINT WITH LIGHT COLORED PAINT TO THE SATISFACTION OF THIS DEPARTMENT ALL WALLS AND CEILING IN THE ENTIRE APARTMENT LOCATED AT APT F12, 6th STORY, 1st APARTMENT FROM SOUTH AT WEST
2026-02-07

Violation ID: #18627029

Current Status: Open

Date Issued: 2026-02-07T00:00:00.000

Description: § 27-2013 ADM CODE PAINT WITH LIGHT COLORED PAINT TO THE SATISFACTION OF THIS DEPARTMENT ALL WALLS AND CEILING IN THE ENTIRE APARTMENT LOCATED AT APT F12, 6th STORY, 1st APARTMENT FROM SOUTH AT WEST

Class B § 27-2005 ADM CODE PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE WOOD FLOOR IN THE 2nd ROOM FROM NORTH LOCATED AT APT D15, 5th STORY, 4th APARTMENT FROM NORTH AT EAST , SECTION AT EAST
2026-02-26

Violation ID: #18669324

Current Status: Open

Date Issued: 2026-02-26T00:00:00.000

Description: § 27-2005 ADM CODE PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE WOOD FLOOR IN THE 2nd ROOM FROM NORTH LOCATED AT APT D15, 5th STORY, 4th APARTMENT FROM NORTH AT EAST , SECTION AT EAST

Class B § 27-2005 ADM CODE PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE WOOD FLOOR IN THE PRIVATE HALLWAY LOCATED AT APT D15, 5th STORY, 4th APARTMENT FROM NORTH AT EAST , SECTION AT EAST
2026-02-26

Violation ID: #18669323

Current Status: Open

Date Issued: 2026-02-26T00:00:00.000

Description: § 27-2005 ADM CODE PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE WOOD FLOOR IN THE PRIVATE HALLWAY LOCATED AT APT D15, 5th STORY, 4th APARTMENT FROM NORTH AT EAST , SECTION AT EAST

Class B § 27-2005 ADM CODE REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR AT CEILING AND SOUTH WALL IN THE 1st ROOM FROM NORTH LOCATED AT APT F12, 6th STORY, 1st APARTMENT FROM SOUTH AT WEST
2026-02-07

Violation ID: #18627025

Current Status: Open

Date Issued: 2026-02-07T00:00:00.000

Description: § 27-2005 ADM CODE REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR AT CEILING AND SOUTH WALL IN THE 1st ROOM FROM NORTH LOCATED AT APT F12, 6th STORY, 1st APARTMENT FROM SOUTH AT WEST

Class C § 27-2070 ADM CODE PROVIDE AN ADEQUATE SUPPLY OF GAS TO THE FIXTURES AT GAS RANGE IN THE KITCHEN LOCATED AT APT D14, 4th STORY, 4th APARTMENT FROM NORTH AT EAST
2026-03-23

Violation ID: #18729685

Current Status: Open

Date Issued: 2026-03-23T00:00:00.000

Description: § 27-2070 ADM CODE PROVIDE AN ADEQUATE SUPPLY OF GAS TO THE FIXTURES AT GAS RANGE IN THE KITCHEN LOCATED AT APT D14, 4th STORY, 4th APARTMENT FROM NORTH AT EAST

Class C HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF ROACHES IN THE ENTIRE APARTMENT LOCATED AT APT D14, 4th STORY, 4th APARTMENT FROM NORTH AT EAST
2026-03-23

Violation ID: #18729686

Current Status: Open

Date Issued: 2026-03-23T00:00:00.000

Description: HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF ROACHES IN THE ENTIRE APARTMENT LOCATED AT APT D14, 4th STORY, 4th APARTMENT FROM NORTH AT EAST

Class C § 27-2005, 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 AT FIRE DOOR AT PUBLIC HALL, 4th STORY
2026-03-23

Violation ID: #18729687

Current Status: Open

Date Issued: 2026-03-23T00:00:00.000

Description: § 27-2005, 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 AT FIRE DOOR AT PUBLIC HALL, 4th STORY

Class C HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF ROACHES IN THE ENTIRE APARTMENT LOCATED AT APT C16, 3rd STORY, 1st APARTMENT FROM EAST AT SOUTH , SECTION ''EAST''
2026-02-15

Violation ID: #18647966

Current Status: Open

Date Issued: 2026-02-15T00:00:00.000

Description: HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF ROACHES IN THE ENTIRE APARTMENT LOCATED AT APT C16, 3rd STORY, 1st APARTMENT FROM EAST AT SOUTH , SECTION ''EAST''

Class C § 27-2070 ADM CODE PROVIDE AN ADEQUATE SUPPLY OF GAS TO THE FIXTURES AT RANGE IN THE KITCHEN LOCATED AT APT A17, 1st STORY, 1st APARTMENT FROM SOUTH AT WEST
2026-02-11

Violation ID: #18635919

Current Status: Open

Date Issued: 2026-02-11T00:00:00.000

Description: § 27-2070 ADM CODE PROVIDE AN ADEQUATE SUPPLY OF GAS TO THE FIXTURES AT RANGE IN THE KITCHEN LOCATED AT APT A17, 1st STORY, 1st APARTMENT FROM SOUTH AT WEST

Class C HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF ROACHES IN THE ENTIRE APARTMENT LOCATED AT APT C9, 3rd STORY, 3rd APARTMENT FROM SOUTH AT WEST
2026-02-08

Violation ID: #18628341

Current Status: Open

Date Issued: 2026-02-08T00:00:00.000

Description: HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF ROACHES IN THE ENTIRE APARTMENT LOCATED AT APT C9, 3rd STORY, 3rd APARTMENT FROM SOUTH AT WEST

Class C § 27-2070 ADM CODE PROVIDE AN ADEQUATE SUPPLY OF GAS TO THE FIXTURES AT RANGE IN THE KITCHEN LOCATED AT APT F12, 6th STORY, 1st APARTMENT FROM SOUTH AT WEST
2026-02-07

Violation ID: #18627021

Current Status: Open

Date Issued: 2026-02-07T00:00:00.000

Description: § 27-2070 ADM CODE PROVIDE AN ADEQUATE SUPPLY OF GAS TO THE FIXTURES AT RANGE IN THE KITCHEN LOCATED AT APT F12, 6th STORY, 1st APARTMENT FROM SOUTH AT WEST

Class C HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF ROACHES IN THE ENTIRE APARTMENT LOCATED AT APT F12, 6th STORY, 1st APARTMENT FROM SOUTH AT WEST
2026-02-07

Violation ID: #18627023

Current Status: Open

Date Issued: 2026-02-07T00:00:00.000

Description: HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF ROACHES IN THE ENTIRE APARTMENT LOCATED AT APT F12, 6th STORY, 1st APARTMENT FROM SOUTH AT WEST

Class C § 27-2070 ADM CODE PROVIDE AN ADEQUATE SUPPLY OF GAS TO THE FIXTURES NO GAS AT STOVE RANGE IN THE KITCHEN LOCATED AT APT A14, 1st STORY, 3rd APARTMENT FROM NORTH AT EAST
2026-02-02

Violation ID: #18614858

Current Status: Open

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

Description: § 27-2070 ADM CODE PROVIDE AN ADEQUATE SUPPLY OF GAS TO THE FIXTURES NO GAS AT STOVE RANGE IN THE KITCHEN LOCATED AT APT A14, 1st STORY, 3rd APARTMENT FROM NORTH AT EAST

Class C § 27-2056.7, 27-2056.8, 27-2056.9 ADM CODE -CERTIFY COMPLIANCE WITH LEAD-BASED PAINT HAZARD CONTROL REQUIREMENTS DURING PERIOD OF UNIT VACANCY BY PERFORMING ACTIVITIES NECESSARY TO ABATE PRESUMED LEAD-BASED PAINT FROM REQUIRED WINDOW AND/OR DOOR FRICTION SURFACES FOR APARTMENT AND MAKE FLOORS SMOOTH AND CLEANABLE, PRESUMED LEAD PAINT IN AN APARTMENT WITH A CHILD UNDER SIX LOCATED AT APT F1, 6th STORY, 1st APARTMENT FROM NORTH AT EAST , SECTION ''WEST''
2025-11-13

Violation ID: #18373809

Current Status: Open

Date Issued: 2025-11-13T00:00:00.000

Description: § 27-2056.7, 27-2056.8, 27-2056.9 ADM CODE -CERTIFY COMPLIANCE WITH LEAD-BASED PAINT HAZARD CONTROL REQUIREMENTS DURING PERIOD OF UNIT VACANCY BY PERFORMING ACTIVITIES NECESSARY TO ABATE PRESUMED LEAD-BASED PAINT FROM REQUIRED WINDOW AND/OR DOOR FRICTION SURFACES FOR APARTMENT AND MAKE FLOORS SMOOTH AND CLEANABLE, PRESUMED LEAD PAINT IN AN APARTMENT WITH A CHILD UNDER SIX LOCATED AT APT F1, 6th STORY, 1st APARTMENT FROM NORTH AT EAST , SECTION ''WEST''

Class C § 27-2005, 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 LATCH AT COMPACTOR CLOSET, 4th STORY, SECTION ''WEST''
2025-09-17

Violation ID: #18234497

Current Status: Open

Date Issued: 2025-09-17T00:00:00.000

Description: § 27-2005, 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 LATCH AT COMPACTOR CLOSET, 4th STORY, SECTION ''WEST''

Class C § 27-2005, 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 HINGE IN THE ENTRANCE LOCATED AT APT F10, 6th STORY, 2nd APARTMENT FROM NORTH AT EAST , SECTION AT EAST
2024-11-07

Violation ID: #17414273

Current Status: Open

Date Issued: 2024-11-07T00:00:00.000

Description: § 27-2005, 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 HINGE IN THE ENTRANCE LOCATED AT APT F10, 6th STORY, 2nd APARTMENT FROM NORTH AT EAST , SECTION AT EAST

Class C § 27-2056.6 ADM CODE - CORRECT THE LEAD-BASED PAINT HAZARD - PAINT THAT TESTED POSITIVE FOR LEAD CONTENT AND THAT IS PEELING OR ON A DETERIORATED SUBSURFACE - USING WORK PRACTICES SET FORTH IN 28 RCNY §11-06(B)(2) 1st DOOR FRAME FROM WEST AT NORTH WALL IN THE KITCHEN LOCATED AT APT D15, 4th STORY, 4th APARTMENT FROM NORTH AT EAST , SECTION AT EAST
2024-06-10

Violation ID: #17046479

Current Status: Open

Date Issued: 2024-06-10T00:00:00.000

Description: § 27-2056.6 ADM CODE - CORRECT THE LEAD-BASED PAINT HAZARD - PAINT THAT TESTED POSITIVE FOR LEAD CONTENT AND THAT IS PEELING OR ON A DETERIORATED SUBSURFACE - USING WORK PRACTICES SET FORTH IN 28 RCNY §11-06(B)(2) 1st DOOR FRAME FROM WEST AT NORTH WALL IN THE KITCHEN LOCATED AT APT D15, 4th STORY, 4th APARTMENT FROM NORTH AT EAST , SECTION AT EAST

Class C § 27-2056.6 ADM CODE - CORRECT THE LEAD-BASED PAINT HAZARD-PAINT THAT IS XRF TESTED INCONCLUSIVE FOR LEAD CONTENT AT 0.5MG/CM2 AND IS PRESUMED LEAD PAINT AS SET FORTH IN (28 RCNY §11-07(b)) AND THAT IS PEELING OR ON A DETERIORATED SUBSURFACE-USING WORK PRACTICES SET FORTH IN 28 RCNY §11-06(b)(2) 1st RISER FROM EAST AT SOUTH WALL IN THE KITCHEN LOCATED AT APT D15, 4th STORY, 4th APARTMENT FROM NORTH AT EAST , SECTION AT EAST
2024-06-10

Violation ID: #17046480

Current Status: Open

Date Issued: 2024-06-10T00:00:00.000

Description: § 27-2056.6 ADM CODE - CORRECT THE LEAD-BASED PAINT HAZARD-PAINT THAT IS XRF TESTED INCONCLUSIVE FOR LEAD CONTENT AT 0.5MG/CM2 AND IS PRESUMED LEAD PAINT AS SET FORTH IN (28 RCNY §11-07(b)) AND THAT IS PEELING OR ON A DETERIORATED SUBSURFACE-USING WORK PRACTICES SET FORTH IN 28 RCNY §11-06(b)(2) 1st RISER FROM EAST AT SOUTH WALL IN THE KITCHEN LOCATED AT APT D15, 4th STORY, 4th APARTMENT FROM NORTH AT EAST , SECTION AT EAST

Class C HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF ROACHES IN THE ENTIRE APARTMENT LOCATED AT APT F8, 6th STORY, 1st APARTMENT FROM NORTH AT EAST
2024-01-13

Violation ID: #16591047

Current Status: Open

Date Issued: 2024-01-13T00:00:00.000

Description: HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF ROACHES IN THE ENTIRE APARTMENT LOCATED AT APT F8, 6th STORY, 1st APARTMENT FROM NORTH AT EAST

Class C § 27-2005 ADM CODE REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR AT SOUTH WALL IN THE KITCHEN LOCATED AT APT D12, 4th STORY, 1st APARTMENT FROM SOUTH AT WEST , SECTION ''EAST''
2024-01-09

Violation ID: #16587718

Current Status: Open

Date Issued: 2024-01-09T00:00:00.000

Description: § 27-2005 ADM CODE REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR AT SOUTH WALL IN THE KITCHEN LOCATED AT APT D12, 4th STORY, 1st APARTMENT FROM SOUTH AT WEST , SECTION ''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

D Violation Severity
23 Open Violations
4 Class A
3 Class B
16 Class C

Significant Class C violation load.

Score: 50.1/100 · Based on current open violations. Higher Class C violations = lower score.

First violation on record: 2024-01-09 · Most recent: 2026-03-23

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

Neighborhood Comparison

How 377 Montgomery Street, Brooklyn compares to other tracked buildings in Prospect Heights in the last 12 months.

3
Average building in Prospect Heights
296
This building
1
NYC Average
📊 That's 98.7× the Prospect Heights average · top 13% most-complained in neighborhood

Nearby Buildings

Top complained-about buildings in the same neighborhood (Prospect Heights) in the last 12 months.

Address Complaints Violations Risk Score Actions
1720 BEDFORD AVENUE, BROOKLYN 788 421 CRITICAL View →
991 CARROLL STREET, BROOKLYN 461 122 CRITICAL View →
49 CROWN STREET, BROOKLYN 424 79 CRITICAL View →
446 KINGSTON AVENUE, BROOKLYN 338 79 CRITICAL View →
2100 WESTBURY COURT, BROOKLYN 263 65 CRITICAL View →
Data last updated: June 8, 2026 · Source: NYC Open Data

⚠️ Serious Concerns Found

This building has 296 complaints and 16 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.