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Building and Landlord Data Analysis Report

4620 5th Avenue, Brooklyn, NY 11220

6
DOB Complaints
2
311 Housing Calls
0
Housing Violations
3
Permits

Risk Assessment

97
Low Risk

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

Our AI predicts there is a 97% chance of no major maintenance issues.
Augrented Insights Report for 4620 5th Avenue

4620 5th Avenue is a 4-story, 2-family residential building located in Sunset Park, Brooklyn, that was constructed in 1926 and is currently owned by Lilan Wu. The building has experienced several significant issues in recent years, most notably with rodent infestations, with complaints filed in July 2021 and confirmed rat activity observed in multiple inspections throughout 2022. There are currently active Department of Buildings (DOB) complaints from 2025 regarding illegal conversion and certificate of occupancy violations, with the February complaint resulting in an Oath violation being served.

The property has a documented history of unauthorized modifications, with multiple illegal conversion complaints filed between 2019-2025, most recently in April 2025. The building underwent substantial construction work in 2018, during which time multiple Environmental Control Board violations were issued against Jian Wei Construction Inc. and Robert San Miguel, primarily related to safety equipment, construction documentation, and procedural compliance, totaling over $5,000 in penalties.

However, all these violations have since been resolved. Despite these challenges, the property has maintained a clean record regarding bedbug infestations, with all recent annual reports (2021-2024) showing zero affected units. The building has proper permit documentation for various works, with permits issued in 2018-2019 for plumbing, electrical, and alteration work, suggesting some level of maintenance and compliance with city regulations.

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.

4620 5th Avenue Report Contents

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4620 5th Avenue Building Overview

Renter Risk Rating

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

Building Characteristics

Total units 2
Year built 1926
Total area 5978 sq ft
Floors 4
Tax Abatements None
Building Class 2 FAMILY HOUSE
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Key Building Statistics

6
DOB Complaints
Complaints filed with the Department of Buildings in the last 7 years.
0
Housing Violations
Class B & C housing maintenance code violations.
2
311 Housing Calls
Housing-related 311 service requests in the last 7 years.
0
Work Orders
Repair orders issued by city agencies.
9
ECB Violations
Environmental Control Board violations on record.
0
Evictions
Evictions executed by city marshalls.
2
Rodent Inspections
Rodent inspections conducted by DOHMH.
3
Building Permits
Permits issued by DOB in the last 7 years.

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4620 5th 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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4620 5th Avenue Rent Control Status

Year Built
Built before 1974
Units
Less 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 4620 5th Avenue

Housing Maintenance Code Complaints

This table shows complaints to 311 related to potential NYC Housing Maintenance Code (HMC) for 4620 5th 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
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Housing Maintenance Code Violations

This table shows violations of the NYC Housing Maintenance Code (HMC) issued by HPD for 4620 5th 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
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311 Service Requests

Service requests made to 311 for 4620 5th Avenue. Data from NYC 311.

Created DateTypeDescriptionStatusAgencyResolution
2021-07-20 11:48RodentCondition Attracting RodentsClosedDOHMH
2021-07-20 11:46RodentCondition Attracting RodentsIn ProgressDOHMH
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DOB Complaints

Department of Buildings complaints regarding 4620 5th Avenue.

Complaint #FiledStatusCategoryInspection DateDisposition
2025-04-05ACTIVEIllegal Conversion2025-05-28Aw: No Access – 1st Attempt (2025-05-28)
2025-02-09CLOSEDCertificate of Occupancy – None/ILLEGAL/Contrary to CO2025-03-21Oath Violation Served (2025-03-21)
37990152021-05-27CLOSEDAdult Establishment2021-06-15Inspector Unable To Gain Access – 2nd Final Attempt (2021-06-16)
37768392020-11-16CLOSEDIllegal Conversion2021-03-26Access Denied – 2nd Attempt (2021-03-26)
36947032019-04-04CLOSEDCSE: Sweep2019-04-04No Violation Warranted For Complaint At Time Of Inspection (2019-04-04)
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DOB Violations

Department of Buildings violations regarding 4620 5th Avenue.

Date IssuedCategoryDescriptionStatusComments
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Indoor Environment Complaints (DOHMH)

The table below shows indoor environment complaints received regarding the conditions at 4620 5th 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 4620 5th 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
2024-12-060002023-11-012024-10-31
2023-12-100002022-11-012023-10-31
2023-04-240002021-11-012022-10-31
2022-11-180002020-11-012021-10-31
2021-07-230002019-11-012020-10-31
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Rodent Inspections

Recent rodent inspection results for 4620 5th Avenue. Data from NYC DOHMH.

DateTypeResult
2022-04-20ComplianceRat Activity
2022-03-28InitialRat Activity
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HPD Litigation Explanation

The table below shows the HPD litigation records for 4620 5th 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 4620 5th 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 4620 5th Avenue. Data from ECB.

DateNumberRespondentDescriptionStatusPenaltyBalance Due
2018-01-1935309666JJIAN WEI CONSTRUCTION INCFAILURE TO INSTITUTE/MAINTAIN SAFETY EQUIPMENT MEASURES OR TEMPORARY CONSTRUCTION-NO HANDRAILS. AT TIME OF INSPECTION OBSERVED AN ACTIVE CONSTRUCTION SITE W/CONCRETE P STEEL FRAMING ON PROGRESS,DURING INSPECTIORESOLVE0.00.0
2018-01-1935309664XJIAN WEI CONSTRUCTION INCFAILURE TO PROVIDE APPROVED/ACCEPTED CONSTRUCTION DOCUMENT AT JOB SITEAT TIME OF INSPECTION. AT TIME OF OBSERVED AN ACTIVE CONSTRUCTION SITEW/CONCRETE & STEEL FRAMING ON PROGRESS,DURING INSPECTION I ASK CONTRACRESOLVE0.00.0
2018-01-1935309670MJIAN WEI CONSTRUCTION INCSEC. 3301.2 NO GUARDRAILS. AT TIME OF INSPECTION OBSERVED AN ACTIVE CONSTRUCTION SITE W/CONCRETE & STEEL FRAMING WORK ON PROGRESS. DURING INSPECTION NOTED ON THE 3RD & 4 FLOOR NEXT TO STAIR AREA MISSING GUARDRARESOLVE0.00.0
2018-01-1935309672XJIAN WEI CONSTRUCTION INCSEC. 3303.4.1 FAILURE TO MAINTAIN. AT TIME OF INSPECTION OBSERVED AN ACTIVE CONSTRUCTION SITE W/CONCRETE P STEEL FRAMING WORK ON PROGRESS. DURING INSPECTION NOTED ON 3RD FL STAIR AREA THE STEP DONT FILL W/WOODRESOLVE0.00.0
2018-01-1935309668NJIAN WEI CONSTRUCTION INCFAILURE TO PERFORM PROPER CONCRETE WASHOUT WATER PROCEDURES AT CONSTRUCTION SITE. AT TIME OF INSPECTION OBSERVED AN ACTIVE CONSTRUCTION SITEW/CONCRETE WORK ON PROGRESS,DURING INSPECTION NOTED THE CONTRACTOR WASRESOLVE0.00.0
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Alternative Enforcement Program (AEP) Explanation

The table below shows the Alternative Enforcement Program (AEP) records for 4620 5th 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 4620 5th 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 4620 5th 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 4620 5th 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 4620 5th Avenue. Data includes sale date, price, buyer, and seller.

DatePriceBuyerSeller

Asbestos Records

Asbestos abatement filings and records for 4620 5th 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 4620 5th Avenue. Data includes connection type, date, and status.

MaterialRecord Type

Elevator Permits

Elevator permit records for 4620 5th Avenue. Data includes permit type, issue date, and status.

TypeIssue DateStatus

Landmark Violations

Landmark preservation violations for 4620 5th 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 4620 5th Avenue Compares

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