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Building and Landlord Data Analysis Report

3921 5th Avenue, Brooklyn, NY 11232

0
DOB Complaints
17
311 Housing Calls
70
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 3921 5th Avenue

The 10-unit, 4-story New Law Tenement building at 3921 5th Avenue in Sunset Park, owned by Dolores Mazza, has experienced persistent maintenance challenges since at least 2021. Most notably, the building has faced recurring heat and hot water issues, with emergency complaints documented in 2022, 2023, and 2024, including a recent July 2024 HPD inspection that resulted in violations.

Apartment 7 has emerged as a particular focus of concern, currently documented with multiple open violations as of July 2024, including issues with mice infestation, roof leaks, mold, window repairs, plaster surfaces, and missing carbon monoxide detectors. The building has also dealt with pest-related challenges, including rodent sightings in 2024 and past violations in 2021, though a recent August 2024 rodent inspection resulted in a passing grade.

Safety concerns have been noted, particularly regarding missing smoke detectors (August 2023) and carbon monoxide detectors (September 2023). The property has undergone multiple inspections and service requests related to various maintenance issues, with some improvements noted, such as the resolution of paint/plaster and flooring issues in 2023-2024. While there have been some successful interventions, as evidenced by various complaints being closed and passing inspections, the building continues to exhibit patterns of recurring maintenance issues that primarily affect heat/hot water systems, pest control, and basic safety features.

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.

3921 5th Avenue Report Contents

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3921 5th Avenue Building Overview

Renter Risk Rating

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

Building Characteristics

Total units 10
Year built 1925
Total area 8760 sq ft
Floors 4
Tax Abatements None
Building Class NEW LAW TENEMENT
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Key Building Statistics

0
DOB Complaints
Complaints filed with the Department of Buildings in the last 7 years.
70
Housing Violations
Class B & C housing maintenance code violations.
17
311 Housing Calls
Housing-related 311 service requests in the last 7 years.
5
Work Orders
Repair orders issued by city agencies.
0
ECB Violations
Environmental Control Board violations on record.
0
Evictions
Evictions executed by city marshalls.
3
Rodent Inspections
Rodent inspections conducted by DOHMH.
0
Building Permits
Permits issued by DOB in the last 7 years.

Included Addresses

  • 3921 5th Ave, New York, NY 11232
  • 501 40th St, New York, NY 11232
  • 503 40th St, New York, NY 11232
  • 505 40th St, New York, NY 11232
  • 507 40th St, New York, NY 11232
  • 509 40th St, New York, NY 11232

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3921 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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3921 5th 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 3921 5th Avenue

Housing Maintenance Code Complaints

This table shows complaints to 311 related to potential NYC Housing Maintenance Code (HMC) for 3921 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
2024-07-152024-07-22Heat/hot Water-Entire BuildingEmergencyCLOSE
2023-08-312024-01-23Paint/plaster-WallNon EmergencyCLOSE
2023-08-312024-01-23Flooring/stairs-FloorNon EmergencyCLOSE
2023-08-312024-01-23Paint/plaster-CeilingNon EmergencyCLOSE
2024-01-062024-01-08Heat/hot Water-Entire BuildingEmergencyCLOSE
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Housing Maintenance Code Violations

This table shows violations of the NYC Housing Maintenance Code (HMC) issued by HPD for 3921 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
2024-07-17BOpenNone7§ 27-2017.3 HMC: TRACE AND REPAIR THE SOURCE AND ABATE THE VISIBLE MOLD CONDITION... LESS THAN 10 SQ FT AT WINDOW RECESS AT EAST IN THE BATHROOM LOCATED AT APT 7, 4th STORY, 1st APARTMENT FROM WEST AT NORTH ORIGINAL VIOLATION 17117562 ISSUED 17-JUL-24 HAS BEEN UPGRADED TO CLASS B PER ADMINISTRATIVE CODE §27-2017.3a(3)(a) or (b).None
2024-07-17BOpenNone7§ 27-2005 HMC: PROPERLY REPAIR OR REPLACE THE BROKEN OR DEFECTIVE COUNTER BALANCE AT LOWER SASH WINDOW IN THE BATHROOM LOCATED AT APT 7, 4th STORY, 1st APARTMENT FROM WEST AT NORTHNone
2024-07-17ACloseNone7§ 27-2017.3 HMC: TRACE AND REPAIR THE SOURCE AND ABATE THE VISIBLE MOLD CONDITION... LESS THAN 10 SQ FT AT WINDOW RECESS AT EAST IN THE BATHROOM LOCATED AT APT 7, 4th STORY, 1st APARTMENT FROM WEST AT NORTHNone
2024-07-17AOpenNone7§ 27-2005 ADM CODE REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR AT WINDOW RECESS AT NORTH WALL IN THE 1st ROOM FROM NORTH AT WEST LOCATED AT APT 7, 4th STORY, 1st APARTMENT FROM WEST AT NORTHNone
2024-07-17BOpenNone7§ 27-2046.1 HMC: REPAIR OR REPLACE THE CARBON MONOXIDE DETECTING DEVICE(S). MISSING IN THE ENTIRE APARTMENT LOCATED AT APT 7, 4th STORY, 1st APARTMENT FROM WEST AT NORTHNone
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311 Service Requests

Service requests made to 311 for 3921 5th Avenue. Data from NYC 311.

Created DateTypeDescriptionStatusAgencyResolution
2024-07-15 08:50HEAT/HOT WATERENTIRE BUILDINGClosedHPD
2024-06-16 19:21RodentRat SightingClosedDOHMH
2024-06-13 15:17Food EstablishmentRodents/Insects/GarbageClosedDOHMH
2024-01-06 14:33HEAT/HOT WATERENTIRE BUILDINGClosedHPD
2023-05-30 15:12Food EstablishmentBare Hands in Contact w/ FoodClosedDOHMH
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DOB Complaints

Department of Buildings complaints regarding 3921 5th Avenue.

Complaint #FiledStatusCategoryInspection DateDisposition
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DOB Violations

Department of Buildings violations regarding 3921 5th Avenue.

Date IssuedCategoryDescriptionStatusComments
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Indoor Environment Complaints (DOHMH)

The table below shows indoor environment complaints received regarding the conditions at 3921 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 3921 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
2024-04-150002022-11-012023-10-31
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Rodent Inspections

Recent rodent inspection results for 3921 5th Avenue. Data from NYC DOHMH.

DateTypeResult
2024-08-02CompliancePassed
2024-06-24InitialRat Activity
2017-03-21InitialPassed
2014-12-03ComplianceRat Activity
2014-11-14InitialRat Activity
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HPD Litigation Explanation

The table below shows the HPD litigation records for 3921 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 3921 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 3921 5th 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 3921 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 3921 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 3921 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 3921 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 3921 5th Avenue. Data includes sale date, price, buyer, and seller.

DatePriceBuyerSeller

Asbestos Records

Asbestos abatement filings and records for 3921 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 3921 5th Avenue. Data includes connection type, date, and status.

MaterialRecord Type

Elevator Permits

Elevator permit records for 3921 5th Avenue. Data includes permit type, issue date, and status.

TypeIssue DateStatus

Landmark Violations

Landmark preservation violations for 3921 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 3921 5th Avenue Compares

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