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Building and Landlord Data Analysis Report

4117 15th Avenue, Brooklyn, NY 11219

1
DOB Complaints
111
311 Housing Calls
287
Housing Violations
0
Permits

Risk Assessment

24
High Risk

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

Our AI predicts there is a 24% chance of no major maintenance issues.
Augrented Insights Report for 4117 15th Avenue

The 23-unit, 4-story building at 4117 15th Avenue in Borough Park, owned by Louis Koplowitz, has experienced persistent heating system issues over the past year, particularly between late 2024 and early 2025. The building underwent several heat and hot water-related complaints, with most occurring between November 2024 and January 2025, though some violations were subsequently corrected.

In December 2024, specific violations were documented in apartment D3 regarding inadequate heat supply and mold conditions, while multiple violations were identified in apartment D1 related to plumbing, flooring, and fixture issues, including a defective fire escape. The building's management has also faced scrutiny over door and window maintenance, with multiple 311 complaints about window frames in 2024 and 2025, and emergency repairs noted for windows and doors in July 2025. Recent inspection records from 2025 show several emergency maintenance requests being addressed, including problems with window frames, doors, and flooring.

Notably, the building has maintained an excellent pest control record, with no reported bedbug infestations in the past six years (2019-2025), and passed rodent inspections as of December 2011. The building's history includes one egress-related complaint in September 2021, which was found to have no violations at the time of inspection. While the property has demonstrated relatively prompt response to various maintenance issues through 311 and Housing Maintenance Code complaints, the recurring nature of heating system problems and multiple repair needs across different apartments suggests ongoing maintenance challenges.

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.

4117 15th Avenue Report Contents

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4117 15th Avenue Building Overview

Renter Risk Rating

This building is in the riskiest 10% of buildings in Borough Park.

Building Characteristics

Total units 23
Year built 1928
Total area 18360 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.
287
Housing Violations
Class B & C housing maintenance code violations.
111
311 Housing Calls
Housing-related 311 service requests in the last 7 years.
6
Work Orders
Repair orders issued by city agencies.
0
ECB Violations
Environmental Control Board violations on record.
2
Evictions
Evictions executed by city marshalls.
0
Rodent Inspections
Rodent inspections conducted by DOHMH.
0
Building Permits
Permits issued by DOB in the last 7 years.

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4117 15th 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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4117 15th Avenue Rent Control Status

Year Built
Built before 1974
Units
More than 6 units
RGB Registration
Registered
Tax Abatement
Tax abatement found
Year BuiltUnitsRGB RegistrationTax Abatement
Before 1974 >6 units Registered Found

Full Building Data for 4117 15th Avenue

Housing Maintenance Code Complaints

This table shows complaints to 311 related to potential NYC Housing Maintenance Code (HMC) for 4117 15th 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
2025-06-302025-07-18Paint/plaster-WallNon EmergencyCLOSE
2025-06-302025-07-18Door/window-Window FrameEmergencyCLOSE
2025-06-302025-07-18Door/window-DoorEmergencyCLOSE
2025-06-302025-07-18Flooring/stairs-FloorEmergencyCLOSE
2025-05-012025-05-06Door/window-Window FrameNon EmergencyCLOSE
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Housing Maintenance Code Violations

This table shows violations of the NYC Housing Maintenance Code (HMC) issued by HPD for 4117 15th 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
2024-12-21BCloseNoneD3§ 27-2017.3 HMC: TRACE AND REPAIR THE SOURCE AND ABATE THE VISIBLE MOLD CONDITION... APPROX LESS THAN 30SQ FT AT EAST AND NORTH WALLS IN THE ENTRANCE LOCATED AT APT D3, 5th STORY, 1st APARTMENT FROM NORTH AT EAST2025-02-21T00:00:00.000Z
2024-12-21CCloseNoneD3§ 27-2029 ADM CODE PROVIDE AN ADEQUATE SUPPLY OF HEAT FOR THE APARTMENT IN THE 1st ROOM FROM NORTH LOCATED AT APT D3, 5th STORY, 1st APARTMENT FROM NORTH AT EAST2024-12-26T00:00:00.000Z
2024-12-21CCloseNoneNone§ 27-2033 ADM CODE PROVIDE READY ACCESS TO BUILDINGS HEATING SYSTEM DOOR LOCKED AT BOILER ROOM2024-12-26T00:00:00.000Z
2024-12-21COpenNoneD3§ 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 FRAME AT DOOR IN THE ENTRANCE LOCATED AT APT D3, 5th STORY, 1st APARTMENT FROM NORTH AT EAST2025-01-09T00:00:00.000Z
2024-08-27CCloseNoneD1§ 27-2005 ADM CODE PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE LIFTING WOOD FLOOR ( WALK AREA ) IN THE FOYER LOCATED AT APT D1, 4th STORY, 1st APARTMENT FROM SOUTH AT WEST2024-10-08T00:00:00.000Z
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311 Service Requests

Service requests made to 311 for 4117 15th Avenue. Data from NYC 311.

Created DateTypeDescriptionStatusAgencyResolution
2025-05-01 10:07DOOR/WINDOWWINDOW FRAMEClosedHPD
2025-01-21 11:15HEAT/HOT WATERAPARTMENT ONLYClosedHPD
2025-01-09 13:12HEAT/HOT WATERENTIRE BUILDINGClosedHPD
2024-12-19 09:44HEAT/HOT WATERENTIRE BUILDINGClosedHPD
2024-12-01 14:36HEAT/HOT WATERENTIRE BUILDINGClosedHPD
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DOB Complaints

Department of Buildings complaints regarding 4117 15th Avenue.

Complaint #FiledStatusCategoryInspection DateDisposition
38124092021-09-02CLOSEDEgress: - Locked/Blocked/Improper/No Secondary Means2021-09-03No Violation Warranted For Complaint At Time Of Inspection (2021-09-03)
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DOB Violations

Department of Buildings violations regarding 4117 15th Avenue.

Date IssuedCategoryDescriptionStatusComments
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Indoor Environment Complaints (DOHMH)

The table below shows indoor environment complaints received regarding the conditions at 4117 15th 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 4117 15th 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
2024-12-120002023-11-012024-10-31
2023-12-120002022-11-012023-10-31
2022-12-130002021-11-012022-10-31
2021-12-030002020-11-012021-10-31
2021-04-060002019-11-012020-10-31
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Rodent Inspections

Recent rodent inspection results for 4117 15th Avenue. Data from NYC DOHMH.

DateTypeResult
2011-12-13InitialPassed
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HPD Litigation Explanation

The table below shows the HPD litigation records for 4117 15th 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 4117 15th 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 4117 15th Avenue. Data from ECB.

DateNumberRespondentDescriptionStatusPenaltyBalance Due
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Alternative Enforcement Program (AEP) Explanation

The table below shows the Alternative Enforcement Program (AEP) records for 4117 15th 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 4117 15th 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 4117 15th 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 4117 15th 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 4117 15th Avenue. Data includes sale date, price, buyer, and seller.

DatePriceBuyerSeller

Asbestos Records

Asbestos abatement filings and records for 4117 15th 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 4117 15th Avenue. Data includes connection type, date, and status.

MaterialRecord Type

Elevator Permits

Elevator permit records for 4117 15th Avenue. Data includes permit type, issue date, and status.

TypeIssue DateStatus

Landmark Violations

Landmark preservation violations for 4117 15th 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 4117 15th Avenue Compares

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