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Building and Landlord Data Analysis Report

521 West 156th Street, Manhattan, NY 10032

0
DOB Complaints
444
311 Housing Calls
279
Housing Violations
1
Permits

Risk Assessment

20
High Risk

This building is in the riskiest 10% of buildings in NYC with significant maintenance issues.

Our AI predicts there is a 20% chance of no major maintenance issues.
Augrented Insights Report for 521 West 156th Street

521 West 156th Street is a 5-story, 46-unit Old Law Tenement building located in Washington Heights, built in 1900 and currently owned by Shaul Koplowitz. The building has experienced several maintenance issues recently, with multiple complaints in 2025 including violations related to flooring/stairs, plumbing (sink and bathtub), heat/hot water, and unsanitary sewage conditions.

Most notably, there is an open emergency water leak issue reported in June 2025. The second floor apartment (2A) has documented violations from November 2024 requiring attention to various issues including roach infestation, bathroom defects, plaster repairs, and plumbing concerns, though many of these were certified as corrected by early 2025.

The building's recent history shows ongoing concerns with building systems and maintenance, including multiple Housing Maintenance Code violations and the failure to file required annual boiler inspection reports in December 2024. While there have been no reported bedbug infestations in recent years, rodent inspections in 2024 indicated rat activity, and previous inspections between 2018-2022 showed a pattern of violations and required bait applications for rodent control. Additionally, multiple 311 service requests regarding heat/hot water and various maintenance issues have been filed in 2025, highlighting ongoing challenges with building maintenance and systems.

Last updated: July 27, 2025
This report is created with AI and based on the most recent 10 data items in each category. Full reports with 50+ data points are available to subscribers.

521 West 156th Street Report Contents

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521 West 156th Street Building Overview

Renter Risk Rating

This building is in the riskiest 10% of buildings in Washington Heights.

Building Characteristics

Total units 46
Year built 1900
Total area 19740 sq ft
Floors 5
Tax Abatements None
Building Class OLD LAW TENEMENT
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Key Building Statistics

0
DOB Complaints
Complaints filed with the Department of Buildings in the last 7 years.
279
Housing Violations
Class B & C housing maintenance code violations.
444
311 Housing Calls
Housing-related 311 service requests in the last 7 years.
3
Work Orders
Repair orders issued by city agencies.
2
ECB Violations
Environmental Control Board violations on record.
4
Evictions
Evictions executed by city marshalls.
9
Rodent Inspections
Rodent inspections conducted by DOHMH.
1
Building Permits
Permits issued by DOB in the last 7 years.

Included Addresses

  • 521 West 156th St, New York, NY 10032
  • 523 West 156th St, New York, NY 10032
  • 521 West 156th St, New York, NY 10032
  • 523 West 156th St, New York, NY 10032

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521 West 156th Street Landlord Information

HPD Registration Contacts

Contact data is from NYC HPD building registration.

RoleNameAddress

Landlord Portfolio

Other NYC buildings registered to this landlord.

AddressUnitsCode ViolationsRisk Rating

Landlord Court Records

NYC housing court and civil court records. Name matching only; verify parties are actually the owners by reviewing the case files!

Date FiledCase TitleCourtLink
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521 West 156th Street Rent Control Status

Year Built
Built before 1974
Units
More than 6 units
RGB Registration
Registered
Tax Abatement
None found
Year BuiltUnitsRGB RegistrationTax Abatement
Before 1974 >6 units Registered None

Full Building Data for 521 West 156th Street

Housing Maintenance Code Complaints

This table shows complaints to 311 related to potential NYC Housing Maintenance Code (HMC) for 521 West 156th Street. These complaints are related to conditions such as lack of heat, hot water, mold, pests, and other habitability issues. Class B and C violations are the most serious and may indicate significant problems with building maintenance or safety.

Date ReceivedSttatus DateCategoryTypeStatus
2025-06-212025-06-21Water Leak-Heavy FlowEmergencyOPEN
2025-04-302025-05-08Plumbing-Basin/sinkEmergencyCLOSE
2025-04-302025-05-08Flooring/stairs-FloorNon EmergencyCLOSE
2025-04-302025-05-08Paint/plaster-WallNon EmergencyCLOSE
2025-04-052025-04-10Heat/hot Water-Apartment OnlyEmergencyCLOSE
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Housing Maintenance Code Violations

This table shows violations of the NYC Housing Maintenance Code (HMC) issued by HPD for 521 West 156th Street. These violations are related to conditions such as lack of heat, hot water, mold, pests, and other habitability issues. Class B and C violations are the most serious and may indicate significant problems with building maintenance or safety.

Inspection DateClassStatusStatus DateApartmentNOV DescriptionCertified Date
2024-11-16COpenNone2AHMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF ROACHES IN THE ENTIRE APARTMENT LOCATED AT APT 2A, 1st STORY, 2nd APARTMENT FROM SOUTH AT WEST2024-12-19T00:00:00.000Z
2024-11-05BCloseNone2A§ 27-2005 ADM CODE PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE CERAMIC TILES AT EAST AND SOUTH WALLS IN THE BATHROOM LOCATED AT APT 2A, 1st STORY, 1st APARTMENT FROM SOUTH AT WEST2024-12-25T00:00:00.000Z
2024-11-05BCloseNone2A§ 27-2026 ADM CODE REPAIR THE BROKEN OR DEFECTIVE CONNECTION WASTE LINE UNDER THE SINK IN THE KITCHEN LOCATED AT APT 2A, 1st STORY, 1st APARTMENT FROM SOUTH AT WEST2024-12-25T00:00:00.000Z
2024-11-05ACloseNone2A§ 27-2005 ADM CODE REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR SOUTH WALL IN THE 2nd ROOM FROM NORTH LOCATED AT APT 2A, 1st STORY, 1st APARTMENT FROM SOUTH AT WEST2025-02-21T00:00:00.000Z
2024-11-05ACloseNone2A§ 27-2005 ADM CODE REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR THE SOUTH AND NORTH WALLS IN THE 4th ROOM FROM NORTH LOCATED AT APT 2A, 1st STORY, 1st APARTMENT FROM SOUTH AT WEST2025-02-21T00:00:00.000Z
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311 Service Requests

Service requests made to 311 for 521 West 156th Street. Data from NYC 311.

Created DateTypeDescriptionStatusAgencyResolution
2025-04-30 15:08PAINT/PLASTERWALLClosedHPD
2025-04-30 15:08PLUMBINGBASIN/SINKClosedHPD
2025-04-30 15:08FLOORING/STAIRSFLOORClosedHPD
2025-04-05 06:59HEAT/HOT WATERAPARTMENT ONLYClosedHPD
2025-04-05 06:59FLOORING/STAIRSFLOORClosedHPD
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DOB Complaints

Department of Buildings complaints regarding 521 West 156th Street.

Complaint #FiledStatusCategoryInspection DateDisposition
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DOB Violations

Department of Buildings violations regarding 521 West 156th Street.

Date IssuedCategoryDescriptionStatusComments
2023-04-25V*-DOB VIOLATION - DISMISSEDVIOLATION ISSUED-FAILURE TO FILE 2022 EXTERNAL LOW PRESSURE INSPECTIONCIANOW CRM Violation Dismissed2025-03-04
2023-04-25V*-DOB VIOLATION - DISMISSEDVIOLATION ISSUED-FAILURE TO FILE 2022 EXTERNAL LOW PRESSURE INSPECTIONCIANOW CRM Violation Dismissed2025-05-16
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Indoor Environment Complaints (DOHMH)

The table below shows indoor environment complaints received regarding the conditions at 521 West 156th Street. The information includes the date, type, description, and status of each complaint. The data is sourced from DOHMH/311.

DateTypeDescriptionStatus
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Bedbug Infestations

The table below shows the bedbug reports filed by the landlord for 521 West 156th Street. The information includes the file date, infested units, eradicated units, re-infested units, filing start date, and filing end date. The data is sourced from DOHMH. Landlords are required to file these reports; missing data may indicate non-compliance.

File DateInfested UnitsEradicated UnitsRe-infested UnitsFiling Start DateFiling End Date
2024-12-230002023-11-012024-10-31
2023-12-210002022-11-012023-10-31
2023-12-210002022-11-012023-10-31
2022-12-190002021-11-012022-10-31
2022-05-180002020-11-012021-10-31
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Rodent Inspections

Recent rodent inspection results for 521 West 156th Street. Data from NYC DOHMH.

DateTypeResult
2024-10-31ComplianceRat Activity
2024-09-26InitialRat Activity
2024-05-30InitialPassed
2023-12-29InitialPassed
2022-06-07InitialPassed
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HPD Litigation Explanation

The table below shows the HPD litigation records for 521 West 156th Street. The information includes the open date, case type, status, judgement, penalty and whether harassment was found. The data is sourced from HPD.

Source: HPD
Open DateCase TypeStatusJudgementPenaltyHarassment found
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OATH Cases Explanation

The table below shows the Office of Administrative Trials and Hearings cases for 521 West 156th Street. The information includes the date, agency, respondent, charge, result, penalty, and status. The data is sourced from OATH.

Source: Office of Administrative Trials and Hearings (OATH)
DateAgencyRespondentChargeResultPenaltyStatus
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ECB Violations

Environmental Control Board violations for 521 West 156th Street. Data from ECB.

DateNumberRespondentDescriptionStatusPenaltyBalance Due
2024-12-1637032094R521 W 156 LLCFAILURE TO FILE REQUIRED ANNUAL BOILER INSPECTION REPORTS FOR LOW-PRESSURE BOILER 10000028743Y0001 IN ACCORDANCE WITH THE RULES OF THE DEPARTMENT. 1RCNY 103-01(D)(1) REQUIRES THAT AN ANNUAL INSPECTION REPORT FORESOLVE0.00.0
2024-12-1637032095Z521 W 156 LLCFAILURE TO FILE REQUIRED ANNUAL BOILER INSPECTION REPORTS FOR LOW-PRESSURE BOILER 10000028743Y0002 IN ACCORDANCE WITH THE RULES OF THE DEPARTMENT. 1RCNY 103-01(D)(1) REQUIRES THAT AN ANNUAL INSPECTION REPORT FORESOLVE0.00.0
2018-06-0135332710N521 WEST 156TH LLCWORK WITHOUT A PERMIT. NOTED: UPON INSPECTION OF APT 1C OBSERVED AN ERECTED PARTITION WALL APPROXIMATELY 8 FEET WIDE BY 10 FEET HIGH LOCATED IN THE KITCHEN AREA. ERECTING PARTITION WALL HAS CREATED AN ADDITIONARESOLVE0.00.0
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Alternative Enforcement Program (AEP) Explanation

The table below shows the Alternative Enforcement Program (AEP) records for 521 West 156th Street. The information includes the start date, start violations, discharge date, and status. The data is sourced from HPD.

Source: Department of Housing Preservation and Development (HPD)
Start DateStart ViolationsDischarge DateStatus
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Vacate Orders Explanation

The table below shows the vacate orders for 521 West 156th Street. The information includes the effective date, rescinded date, reason, type, and units. The data is sourced from DOB.

Source: Department of Buildings (DOB)
Effective DateRescinded DateReasonTypeUnits
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Work Orders Explanation

The table below shows the work orders for 521 West 156th Street. The information includes the date created, type, description, and charge. The data is sourced from HPD.

Source: Department of Housing Preservation and Development (HPD)
Date CreatedTypeDescriptionCharge
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Liens Explanation

The table below shows tax and water liens for 521 West 156th Street. Information includes tax class, month, water only flag, amount, and cycle. Data is sourced from NYC Department of Finance.

Source: NYC Department of Finance
Tax ClassMonthWater OnlyAmountCycle
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Case NumberDateTypeStatusDetails

Sales Records

Sales transactions for 521 West 156th Street. Data includes sale date, price, buyer, and seller.

DatePriceBuyerSeller

Asbestos Records

Asbestos abatement filings and records for 521 West 156th Street. Data includes filing date, type, and status.

Start DateEnd DateStatusProcedureFloor

Fire Violations

Violations issued by the Fire Department for this property.

Violation NumberDateDescriptionStatus
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Fire Inspections

Fire Department inspection records for this property.

DateTypeResult
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Fire Certificates

Fire safety certificates for this property.

TypeIssue DateExpiration
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Water Connections

Water connection permits and records for 521 West 156th Street. Data includes connection type, date, and status.

MaterialRecord Type

Elevator Permits

Elevator permit records for 521 West 156th Street. Data includes permit type, issue date, and status.

TypeIssue DateStatus

Landmark Violations

Landmark preservation violations for 521 West 156th Street. Data includes violation date, type, and status.

DateTypeStatus

Planning Projects

City Planning (ZAP) project applications for this building. Data includes project ID, status, borough, and lot/block information.

Project IDStatusBoroughBlockLot
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Building Permits

Department of Buildings issued building permits for this property. This includes permits for construction, alteration, and demolition work. Data includes permit type, job number, status, and issue date.

Permit TypeJob NumberStatusIssue Date

Electrical Permits

Department of Buildings issued electrical permits for this property. This includes permits for electrical work, installations, and modifications. Data includes permit type, job number, status, and issue date.

Permit TypeJob NumberStatusIssue Date

How 521 West 156th Street Compares

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