Building and Landlord Data Analysis Report

4423 4th Avenue, Brooklyn, NY 11220

2
DOB Complaints
33
311 Housing Calls
65
Housing Violations
2
Permits

Risk Assessment

66
Moderate Risk

This building shows some maintenance concerns that warrant attention.

Our AI predicts there is a 66% chance of no major maintenance issues.
Augrented Insights Report for 4423 4th Avenue

The 4-story, 6-unit tenement building at 4423 4th Avenue in Sunset Park, owned by 4423 4th Avenue Assets LLC and constructed in 1935, has experienced several significant maintenance issues recently. Most notably, in October 2024, there were multiple emergency maintenance complaints involving mold, plumbing problems (including sink issues), and painting/plastering problems affecting walls and ceilings, all of which received violations requiring correction by the property owner. Earlier in December 2023, the building encountered various issues including problems with the fire escape, garbage/recycling storage, heating/hot water systems, and electrical appliances, though most of these complaints were resolved without violations being issued.

The building's enforcement history shows both active and resolved violations related to structural and safety concerns. In 2021, there were serious issues with building stability and facade maintenance, including problems with cornices and fascia that required FDNY intervention, resulting in environmental control board violations with imposed penalties. More recent violations from October 2024 indicate continued maintenance challenges, including issues with self-closing doors and bulkhead security.

The property has a clean record regarding pest issues, with no bedbug infestations reported in its most recent filings from 2024, and a passed rodent inspection in 2017. Historical complaints from 2019 and 2021 regarding construction work and building vibrations were resolved with no violations found or served. The building's maintenance code compliance picture is mixed, with multiple emergency and non-emergency complaints in recent years, though many have been closed through inspections and required violations to be corrected. The most recent permit activity shows permits issued in 2018 and 2020 for various work, suggesting ongoing maintenance and improvement efforts.

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.

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4423 4th AvenueBuilding Overview

Renter Risk Rating

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

Building Characteristics

Total units 6
Year built 1935
Total area 7462 sq ft
Floors 4
Tax Abatements None
Building Class NEW LAW TENEMENT
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Key Building Statistics

2
DOB Complaints
Complaints filed with the Department of Buildings in the last 7 years.
65
Housing Violations
Class B & C housing maintenance code violations.
33
311 Housing Calls
Housing-related 311 service requests in the last 7 years.
2
Work Orders
Repair orders issued by city agencies.
2
ECB Violations
Environmental Control Board violations on record.
0
Evictions
Evictions executed by city marshalls.
0
Rodent Inspections
Rodent inspections conducted by DOHMH.
2
Building Permits
Permits issued by DOB in the last 7 years.

Included Addresses

  • 4423 4th Ave, New York, NY 11220
  • 401 45th St, New York, NY 11220
  • 403 45th St, New York, NY 11220
  • 405 45th St, New York, NY 11220
  • 407 45th St, New York, NY 11220
  • 411 45th St, New York, NY 11220

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4423 4th 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!

4423 4th Avenue 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 4423 4th Avenue

Housing Maintenance Code Complaints

This table shows complaints to 311 related to potential NYC Housing Maintenance Code (HMC) for 4423 4th 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
2024-10-212024-10-29Plumbing-Basin/sinkNon EmergencyCLOSE
2024-10-212024-10-29Unsanitary Condition-MoldEmergencyCLOSE
2024-10-212024-10-29Paint/plaster-WallEmergencyCLOSE
2024-10-212024-10-29Paint/plaster-CeilingImmediate EmergencyCLOSE
2023-12-242024-04-02Paint/plaster-Window/frameNon EmergencyCLOSE

Housing Maintenance Code Violations

This table shows violations of the NYC Housing Maintenance Code (HMC) issued by HPD for 4423 4th 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
2024-10-23BCloseNone3F§ 27-2005 ADM CODE REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR THE CEILING IN THE 1st ROOM FROM NORTH AT EAST LOCATED AT APT 3F, 4th STORY, 1st APARTMENT FROM WEST AT NORTHNone
2024-10-23CCloseNone3F§ 27-2026 ADM CODE REPAIR THE BROKEN OR DEFECTIVE CONNECTION AT WASTELINE AT SINK IN THE KITCHEN LOCATED AT APT 3F, 4th STORY, 1st APARTMENT FROM WEST AT NORTHNone
2024-10-23CCloseNone3F§ 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 IN THE ENTRANCE LOCATED AT APT 3F, 4th STORY, 1st APARTMENT FROM WEST AT NORTHNone
2024-10-23CCloseNoneNone§ 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 SET AT BULKHEAD DOOR AT PUBLIC HALL, 4th STORY2024-11-06T00:00:00.000Z
2024-10-23BCloseNoneNone§ 27-2005 HMC: PROPERLY REPAIR OR REPLACE THE BROKEN OR DEFECTIVE LATCH SET AT BULKHEAD DOOR AT PUBLIC HALL, 4th STORY2024-11-07T00:00:00.000Z

311 Service Requests

Service requests made to 311 for 4423 4th Avenue. Data from NYC 311.

Created DateTypeDescriptionStatusAgencyResolution
2024-10-21 12:17UNSANITARY CONDITIONMOLDClosedHPD
2024-10-21 12:17PAINT/PLASTERWALLClosedHPD
2024-10-21 12:17PAINT/PLASTERCEILINGClosedHPD
2024-10-21 12:17PLUMBINGBASIN/SINKClosedHPD
2023-12-24 15:33SAFETYFIRE ESCAPEClosedHPD

DOB Complaints

Department of Buildings complaints regarding 4423 4th Avenue.

Complaint #FiledStatusCategoryInspection DateDisposition
38052482021-07-08CLOSEDBuilding Shaking/Vibrating/Struct Stability Affected2021-07-08Oath Violation Served (2021-07-08)
36969912019-04-17CLOSEDConstruction Enforcement Work Order (DOB)2019-05-13No Violation Warranted For Complaint At Time Of Inspection (2019-05-13)

DOB Violations

Department of Buildings violations regarding 4423 4th Avenue.

Date IssuedCategoryDescriptionStatusComments
2021-09-29V-DOB VIOLATION - ACTIVEFAILURE TO CERTIFY CORRECTION ON IMMEDIATELY HAZARDOUS (CLASS 1) ECB VIOLATION

Indoor Environment Complaints (DOHMH)

The table below shows indoor environment complaints received regarding the conditions at 4423 4th Avenue. The information includes the date, type, description, and status of each complaint. The data is sourced from DOHMH/311.

Bedbug Infestations

The table below shows the bedbug reports filed by the landlord for 4423 4th 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
2024-12-190002023-11-012024-10-31
2024-07-170002022-11-012023-10-31
2023-01-020002021-11-012022-10-31
2022-03-030002020-11-012021-10-31

Rodent Inspections

Recent rodent inspection results for 4423 4th Avenue. Data from NYC DOHMH.

DateTypeResult
2017-04-03InitialPassed

HPD Litigation Explanation

The table below shows the HPD litigation records for 4423 4th 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

OATH Cases Explanation

The table below shows the Office of Administrative Trials and Hearings cases for 4423 4th 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

ECB Violations

Environmental Control Board violations for 4423 4th Avenue. Data from ECB.

DateNumberRespondentDescriptionStatusPenaltyBalance Due
2021-09-0835562253KWINFINITEZ LLCFAILURE TO COMPLY WITH COMMISSIONER'S ORDER CONTAINED IN SUMMONS/VIOLATION #39044112M ISSUED ON 07/08/21 AND TO FILE CERTIFICATE OF CORRECTION PURSUANT TO 28-201.1 AND 1RCNY 102-01.FAILURE TO MAINTAIN.REMEDY:COACTIVE1250.01250.0
2021-07-0839044112MWINFINITEC LLCAT FACADE OF BUILDING FRONTING 4TH AVE., ABOVE 1ST FLOOR COMMERCIAL SPACE, SECTION OF CORNICE THAT WAS LOOSE HAS BEEN REMOVED BY FDNY, ALSO NOTED SECTION OF FASCIA AT CORNER EXP. 1 + 4 ALSO MISSING., MAINTAIN EACTIVE2500.02500.0

Alternative Enforcement Program (AEP) Explanation

The table below shows the Alternative Enforcement Program (AEP) records for 4423 4th 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

Vacate Orders Explanation

The table below shows the vacate orders for 4423 4th 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

Work Orders Explanation

The table below shows the work orders for 4423 4th 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

Liens Explanation

The table below shows tax and water liens for 4423 4th 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

Case NumberDateTypeStatusDetails

Sales Records

Sales transactions for 4423 4th Avenue. Data includes sale date, price, buyer, and seller.

DatePriceBuyerSeller

Asbestos Records

Asbestos abatement filings and records for 4423 4th Avenue. Data includes filing date, type, and status.

Start DateEnd DateStatusProcedureFloor

Fire Violations

Violations issued by the Fire Department for this property.

Violation NumberDateDescriptionStatus

Fire Inspections

Fire Department inspection records for this property.

Fire Certificates

Fire safety certificates for this property.

TypeIssue DateExpiration

Water Connections

Water connection permits and records for 4423 4th Avenue. Data includes connection type, date, and status.

MaterialRecord Type

Elevator Permits

Elevator permit records for 4423 4th Avenue. Data includes permit type, issue date, and status.

TypeIssue DateStatus

Landmark Violations

Landmark preservation violations for 4423 4th 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 4423 4th Avenue Compares

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