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Building and Landlord Data Analysis Report

423 Throop Avenue, Brooklyn, NY 11221

2
DOB Complaints
56
311 Housing Calls
61
Housing Violations
0
Permits

Risk Assessment

71
Low Risk

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

Our AI predicts there is a 71% chance of no major maintenance issues.
Augrented Insights Report for 423 Throop Avenue

The 6-unit, 3-story Old Law Tenement building at 423 Throop Avenue, owned by Ismene Speliotis, has experienced several significant maintenance issues over the past year and beyond. Most recently, in October 2024, multiple service requests were filed regarding water-related problems, including damp spots, slow leaks, and mold issues, though HPD was unable to complete inspections of these complaints. The building has a documented pattern of heat and hot water problems, with multiple emergency complaints in late 2023 regarding both apartment-specific and building-wide issues, particularly in November 2023.

These complaints followed an active period of heating system violations noted in 2023-2024 for failure to file annual boiler inspection reports, with an active ECB violation from 2021 relating to boiler room conditions and missing safety equipment. The building's maintenance record shows ongoing concerns with safety systems and basic services. In late 2023, violations were issued regarding missing smoke and carbon monoxide detectors in apartment 3R. Multiple housing maintenance code violations remain open from November 2023, including problems with water leakage, heating systems, and public hall conditions.

Historical data reveals a pattern of rodent activity, with inspections in 2019-2022 showing rat activity, though a compliant inspection in 2024 marked an improvement. The building's environmental conditions have been monitored through bedbug and rodent inspections, with the most recent bedbug report (2025) showing no active infestations. While the building has passed recent rodent inspections, the persistent heating, water, and safety system issues suggest ongoing maintenance challenges. The property has also faced various regulatory scrutiny over the years, including violations for illegal conversion (2019) and multiple boiler-related issues (2021-2024), though some of these appear to have been resolved or are currently pending resolution.

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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423 Throop Avenue Building Overview

Renter Risk Rating

This building is in the riskiest 10% of buildings in Bedford-Stuyvesant.

Building Characteristics

Total units 6
Year built 1931
Total area 4875 sq ft
Floors 3
Tax Abatements None
Building Class OLD LAW TENEMENT
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Key Building Statistics

2
DOB Complaints
Complaints filed with the Department of Buildings in the last 7 years.
61
Housing Violations
Class B & C housing maintenance code violations.
56
311 Housing Calls
Housing-related 311 service requests in the last 7 years.
2
Work Orders
Repair orders issued by city agencies.
1
ECB Violations
Environmental Control Board violations on record.
0
Evictions
Evictions executed by city marshalls.
5
Rodent Inspections
Rodent inspections conducted by DOHMH.
0
Building Permits
Permits issued by DOB in the last 7 years.

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423 Throop 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!

423 Throop 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 423 Throop Avenue

Housing Maintenance Code Complaints

This table shows complaints to 311 related to potential NYC Housing Maintenance Code (HMC) for 423 Throop 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
2024-10-142024-10-26Unsanitary Condition-MoldEmergencyCLOSE
2024-10-142024-10-26Water Leak-Slow LeakNon EmergencyCLOSE
2024-10-142024-10-26Water Leak-Damp SpotNon EmergencyCLOSE
2023-11-162023-12-04Unsanitary Condition-PestsNon EmergencyCLOSE
2023-11-292023-12-04Heat/hot Water-Apartment OnlyEmergencyCLOSE

Housing Maintenance Code Violations

This table shows violations of the NYC Housing Maintenance Code (HMC) issued by HPD for 423 Throop 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
2024-04-12ACloseNoneNone(A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR AS DESCRIBED ON HPDS WEBSITE, WWW.NYC.GOV\HPD, SEARCH BED BUGS.None
2023-11-14BOpenNone3R§ 27-2046.1 HMC: REPAIR OR REPLACE THE CARBON MONOXIDE DETECTING DEVICE(S). MISSING IN THE ENTIRE APARTMENT LOCATED AT APT 3R, 3rd STORY, 1st APARTMENT FROM WEST AT NORTHNone
2023-11-14BOpenNone3R§ 27-2045 ADM CODE REPAIR OR REPLACE THE SMOKE DETECTOR MISSING IN THE ENTIRE APARTMENT LOCATED AT APT 3R, 3rd STORY, 1st APARTMENT FROM WEST AT NORTHNone
2023-11-08AOpenNoneNone§ 27-2026, 2027 HMC: PROPERLY REPAIR THE SOURCE AND ABATE THE EVIDENCE OF A WATER LEAK AT CEILING AND SOUTH WALL AT VESTIBULE AT PUBLIC HALL, 1st STORYNone
2023-11-08AOpenNoneNone§ 27-2013 ADM CODE PAINT WITH LIGHT COLORED PAINT TO THE SATISFACTION OF THIS DEPARTMENT AT SOUTH WALL AND CEILING, BETWEEN FRONT ENTRANCE AND VESTIBULE DOOR AT PUBLIC HALL, 1st STORYNone

311 Service Requests

Service requests made to 311 for 423 Throop Avenue. Data from NYC 311.

Created DateTypeDescriptionStatusAgencyResolution
2024-10-14 11:18UNSANITARY CONDITIONMOLDClosedHPD
2024-10-14 11:18WATER LEAKSLOW LEAKClosedHPD
2024-10-14 11:18WATER LEAKDAMP SPOTClosedHPD
2024-09-29 21:09Smoking or VapingAllowed in Smoke Free AreaClosedDOHMH
2024-09-29 21:02Smoking or VapingAllowed in Smoke Free AreaClosedDOHMH

DOB Complaints

Department of Buildings complaints regarding 423 Throop Avenue.

Complaint #FiledStatusCategoryInspection DateDisposition
37907392021-03-22CLOSEDBoiler: Defective/Inoperative/No Permit2021-03-22Oath Violation Served (2021-03-29)
37209282019-09-11CLOSEDIllegal Conversion2020-03-02Aw: Access Denied – 2nd Attempt (2020-03-17)

DOB Violations

Department of Buildings violations regarding 423 Throop Avenue.

Date IssuedCategoryDescriptionStatusComments
2024-09-23V-DOB VIOLATION - ACTIVEVIOLATION ISSUED-FAILURE TO FILE 2023 EXTERNAL LOW PRESSURE INSPECTION
2023-06-30V-DOB VIOLATION - ACTIVEVIOLATION ISSUED-FAILURE TO FILE 2021 EXTERNAL LOW PRESSURE INSPECTION
2023-04-25V-DOB VIOLATION - ACTIVEVIOLATION ISSUED-FAILURE TO FILE 2022 EXTERNAL LOW PRESSURE INSPECTION
2019-11-08V-DOB VIOLATION - ACTIVEVIOLATION ISSUED FOR FAILURE TO FILE ANNUAL BOILER 2017 INSPECTION REPORT

Indoor Environment Complaints (DOHMH)

The table below shows indoor environment complaints received regarding the conditions at 423 Throop 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 423 Throop 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
2025-06-260002023-11-012024-10-31
2020-12-190002019-11-012020-10-31
2019-12-230002018-11-012019-10-31

Rodent Inspections

Recent rodent inspection results for 423 Throop Avenue. Data from NYC DOHMH.

DateTypeResult
2025-07-23InitialPassed
2024-07-30CompliancePassed
2024-06-14InitialRat Activity
2022-09-27InitialPassed
2019-12-06ComplianceRat Activity

HPD Litigation Explanation

The table below shows the HPD litigation records for 423 Throop 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 423 Throop 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 423 Throop Avenue. Data from ECB.

DateNumberRespondentDescriptionStatusPenaltyBalance Due
2021-03-2239038042PNEIGHBORHOOD RESTORE HOUSHOLES IN WALLS AND CEILING AS PER BC 509.1,509.4.1 NO MANUAL RESET LWCO AS PER MC 1007.2/ASME CSD-1 MISSING COMBUSTION AIR IN BOILER RM MC 701.2ACTIVE3125.00.0

Alternative Enforcement Program (AEP) Explanation

The table below shows the Alternative Enforcement Program (AEP) records for 423 Throop 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 423 Throop 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 423 Throop 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 423 Throop 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 423 Throop Avenue. Data includes sale date, price, buyer, and seller.

DatePriceBuyerSeller

Asbestos Records

Asbestos abatement filings and records for 423 Throop 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 423 Throop Avenue. Data includes connection type, date, and status.

MaterialRecord Type

Elevator Permits

Elevator permit records for 423 Throop Avenue. Data includes permit type, issue date, and status.

TypeIssue DateStatus

Landmark Violations

Landmark preservation violations for 423 Throop 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 423 Throop Avenue Compares

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