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Building and Landlord Data Analysis Report

4001 9th Avenue, Brooklyn, NY 11232

0
DOB Complaints
2
311 Housing Calls
0
Housing Violations
0
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 4001 9th Avenue

The two-family residence at 4001 9th Avenue in Borough Park, owned by Fredrick Martorell, has experienced ongoing heating system concerns in recent months, with the most recent incident occurring in early November 2023 when multiple tenants reported issues with heat and hot water throughout the entire building.

This emergency complaint was filed with both the Department of Housing Preservation and Development (HPD) and the Housing Maintenance Code, though inspectors were unable to gain access to verify the conditions.

While this heating issue is the most pressing concern on record, it is worth noting that in February 2023, there was also a food establishment-related complaint filed with the Department of Health and Mental Hygiene (DOHMH) regarding letter grading, though this matter was addressed and administratively closed by June 2024. The building, which was constructed in 1899, consists of two stories and has been classified as a two-family house.

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.

4001 9th Avenue Report Contents

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4001 9th Avenue Building Overview

Renter Risk Rating

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

Building Characteristics

Total units 2
Year built 1899
Total area 3000 sq ft
Floors 2
Tax Abatements None
Building Class 2 FAMILY HOUSE
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Key Building Statistics

0
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.
0
ECB Violations
Environmental Control Board violations on record.
1
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.

Included Addresses

  • 4001 9th Ave, New York, NY 11232
  • 906 40th St, New York, NY 11232

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4001 9th 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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4001 9th 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 4001 9th Avenue

Housing Maintenance Code Complaints

This table shows complaints to 311 related to potential NYC Housing Maintenance Code (HMC) for 4001 9th 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
2023-11-022023-11-06Heat/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 4001 9th 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 4001 9th Avenue. Data from NYC 311.

Created DateTypeDescriptionStatusAgencyResolution
2023-11-02 09:43HEAT/HOT WATERENTIRE BUILDINGClosedHPD
2023-02-22 02:52Food EstablishmentLetter GradingClosedDOHMH
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DOB Complaints

Department of Buildings complaints regarding 4001 9th Avenue.

Complaint #FiledStatusCategoryInspection DateDisposition
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DOB Violations

Department of Buildings violations regarding 4001 9th Avenue.

Date IssuedCategoryDescriptionStatusComments
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Indoor Environment Complaints (DOHMH)

The table below shows indoor environment complaints received regarding the conditions at 4001 9th 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 4001 9th 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
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Rodent Inspections

Recent rodent inspection results for 4001 9th Avenue. Data from NYC DOHMH.

DateTypeResult
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HPD Litigation Explanation

The table below shows the HPD litigation records for 4001 9th 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 4001 9th 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 4001 9th 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 4001 9th 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 4001 9th 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 4001 9th 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 4001 9th 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 4001 9th Avenue. Data includes sale date, price, buyer, and seller.

DatePriceBuyerSeller

Asbestos Records

Asbestos abatement filings and records for 4001 9th 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 4001 9th Avenue. Data includes connection type, date, and status.

MaterialRecord Type

Elevator Permits

Elevator permit records for 4001 9th Avenue. Data includes permit type, issue date, and status.

TypeIssue DateStatus

Landmark Violations

Landmark preservation violations for 4001 9th 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 4001 9th Avenue Compares

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