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Building and Landlord Data Analysis Report

537 Knickerbocker Avenue, Brooklyn, NY 11221

1
DOB Complaints
42
311 Housing Calls
72
Housing Violations
0
Permits

Risk Assessment

81
Low Risk

This building shows minimal signs of maintenance issues based on our analysis.

Our AI predicts there is a 81% chance of no major maintenance issues.
Augrented Insights Report for 537 Knickerbocker Avenue

537 Knickerbocker Avenue, a 4-story, 8-unit New Law tenement built in 1905 and currently owned by Mendel Deutsch, has experienced a series of concerning maintenance issues over the past two years. Most notably, in April 2025, the building suffered multiple heat/hot water and power outage problems affecting the entire building, with violations issued by the Department of Housing Preservation and Development (HPD). These followed a pattern of similar issues in March 2023 when tenants reported heat/hot water problems that were reportedly resolved.

The property has also had recurring rodent infestations, with multiple inspections in 2024 and 2025 confirming rat activity, and a notable cluster of complaints in August 2024 related to both rodents and water leaks. Apartment 3R has been particularly affected, with multiple open violations as of 2024 concerning plumbing, pest infestations, and interior maintenance issues. The building's systems appear to have ongoing maintenance challenges, as evidenced by the open HVAC violation filed in 2024 for not filing the 2023 external low pressure inspection.

The property's historical records show a significant boiler-related violation in 2018, though it was resolved with a penalty. Bedbug reports from 2021-2023 show zero infested units during those periods. The building's repeated issues with heat, electricity, and pest control suggest ongoing challenges with building maintenance and systems reliability. Recent inspections have consistently identified rat activity, with the most recent confirmations coming in 2025, indicating this remains an unresolved issue.

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.

537 Knickerbocker Avenue Report Contents

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537 Knickerbocker Avenue Building Overview

Renter Risk Rating

This building is in the riskiest 10% of buildings in Bushwick.

Building Characteristics

Total units 8
Year built 1905
Total area 9000 sq ft
Floors 4
Tax Abatements None
Building Class NEW LAW TENEMENT
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Key Building Statistics

1
DOB Complaints
Complaints filed with the Department of Buildings in the last 7 years.
72
Housing Violations
Class B & C housing maintenance code violations.
42
311 Housing Calls
Housing-related 311 service requests in the last 7 years.
15
Work Orders
Repair orders issued by city agencies.
1
ECB Violations
Environmental Control Board violations on record.
0
Evictions
Evictions executed by city marshalls.
19
Rodent Inspections
Rodent inspections conducted by DOHMH.
0
Building Permits
Permits issued by DOB in the last 7 years.

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537 Knickerbocker Avenue 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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537 Knickerbocker Avenue Rent Control Status

Year Built
Built before 1974
Units
More than 6 units
RGB Registration
Not registered
Tax Abatement
None found
Year BuiltUnitsRGB RegistrationTax Abatement
Before 1974 >6 units Not registered None

Full Building Data for 537 Knickerbocker Avenue

Housing Maintenance Code Complaints

This table shows complaints to 311 related to potential NYC Housing Maintenance Code (HMC) for 537 Knickerbocker Avenue. 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
2025-04-012025-04-09Electric-Power OutageImmediate EmergencyCLOSE
2025-03-312025-04-03Heat/hot Water-Entire BuildingEmergencyCLOSE
2025-03-312025-04-03Electric-Power OutageImmediate EmergencyCLOSE
2025-04-012025-04-03Heat/hot Water-Entire BuildingEmergencyCLOSE
2024-08-192024-08-31Water Leak-Slow LeakNon EmergencyCLOSE
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Housing Maintenance Code Violations

This table shows violations of the NYC Housing Maintenance Code (HMC) issued by HPD for 537 Knickerbocker Avenue. 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
2024-08-27COpenNone3RHMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF RODENTS RAT EXCERTA IN THE ENTIRE APARTMENT LOCATED AT APT 3R, 3rd STORY, 2nd APARTMENT FROM WEST AT NORTHNone
2024-08-27BOpenNoneNone§ 27-2005, 2007 ADM CODE REMOVE ALL ENCUMBRANCES CONSISTING OF HOUSEHOLD ITEMS AT PUBLIC HALL STAIRS, 4th STORYNone
2024-08-27COpenNone3R§ 27-2005 ADM CODE PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE WOOD SUB. FLOOR IN THE PRIVATE HALLWAY LOCATED AT APT 3R, 3rd STORY, 2nd APARTMENT FROM WEST AT NORTHNone
2024-08-27COpenNone3R§ 27-2026, 2027 HMC: PROPERLY REPAIR THE SOURCE AND ABATE THE EVIDENCE OF A WATER LEAK AT CEILING IN THE BATHROOM LOCATED AT APT 3R, 3rd STORY, 2nd APARTMENT FROM WEST AT NORTHNone
2024-08-27COpenNone3R§ 27-2005 ADM CODE REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR AT CEILING IN THE BATHROOM LOCATED AT APT 3R, 3rd STORY, 2nd APARTMENT FROM WEST AT NORTHNone
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311 Service Requests

Service requests made to 311 for 537 Knickerbocker Avenue. Data from NYC 311.

Created DateTypeDescriptionStatusAgencyResolution
2025-04-01 10:34ELECTRICPOWER OUTAGEClosedHPD
2025-04-01 10:32HEAT/HOT WATERENTIRE BUILDINGClosedHPD
2025-03-31 20:04ELECTRICPOWER OUTAGEClosedHPD
2025-03-31 19:49HEAT/HOT WATERENTIRE BUILDINGClosedHPD
2024-08-19 11:38WATER LEAKSLOW LEAKClosedHPD
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DOB Complaints

Department of Buildings complaints regarding 537 Knickerbocker Avenue.

Complaint #FiledStatusCategoryInspection DateDisposition
36686412018-09-24CLOSEDBoiler: Defective/Inoperative/No Permit2018-09-25Oath Violation Served (2018-09-25)
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DOB Violations

Department of Buildings violations regarding 537 Knickerbocker Avenue.

Date IssuedCategoryDescriptionStatusComments
2024-09-23V-DOB VIOLATION - ACTIVEVIOLATION ISSUED-FAILURE TO FILE 2023 EXTERNAL LOW PRESSURE INSPECTION
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Indoor Environment Complaints (DOHMH)

The table below shows indoor environment complaints received regarding the conditions at 537 Knickerbocker Avenue. 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 537 Knickerbocker Avenue. 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
2023-06-270002021-11-012022-10-31
2021-04-210002019-11-012020-10-31
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Rodent Inspections

Recent rodent inspection results for 537 Knickerbocker Avenue. Data from NYC DOHMH.

DateTypeResult
2025-07-10InitialRat Activity
2025-06-20ComplianceRat Activity
2025-05-08InitialRat Activity
2024-11-25ComplianceRat Activity
2024-11-06InitialRat Activity
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HPD Litigation Explanation

The table below shows the HPD litigation records for 537 Knickerbocker Avenue. 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 537 Knickerbocker Avenue. 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 537 Knickerbocker Avenue. Data from ECB.

DateNumberRespondentDescriptionStatusPenaltyBalance Due
2018-09-2539000440R537 KNICKERBOCKER ENTERPRPIPING ON STEAM HEADER RUSTED&LEAKING.FLUE PIPE NOT PROPERLY SEALED&SECURED. HOLES IN WALLS. DEBRIS IN BOILER ROOM.CORRECT VIOLATING CONDITIONS& SUBMIT A CERTIFICATE OF CORRECTIONRESOLVE312.00.0
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Alternative Enforcement Program (AEP) Explanation

The table below shows the Alternative Enforcement Program (AEP) records for 537 Knickerbocker Avenue. 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 537 Knickerbocker Avenue. 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 537 Knickerbocker Avenue. 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 537 Knickerbocker Avenue. 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 537 Knickerbocker Avenue. Data includes sale date, price, buyer, and seller.

DatePriceBuyerSeller

Asbestos Records

Asbestos abatement filings and records for 537 Knickerbocker Avenue. 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 537 Knickerbocker Avenue. Data includes connection type, date, and status.

MaterialRecord Type

Elevator Permits

Elevator permit records for 537 Knickerbocker Avenue. Data includes permit type, issue date, and status.

TypeIssue DateStatus

Landmark Violations

Landmark preservation violations for 537 Knickerbocker Avenue. 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 537 Knickerbocker Avenue Compares

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