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Building and Landlord Data Analysis Report

413 9th Street, Brooklyn, NY 11215

2
DOB Complaints
15
311 Housing Calls
29
Housing Violations
1
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 413 9th Street

The 5-story, 20-unit tenement building at 413 9th Street in Park Slope, owned by Catherine Hui and built in 1912, has experienced several significant maintenance and compliance issues over recent years. Most pressing is a current heat/hot water complaint from January 2025, and there are active violations as of November 2023 in Apartment 33 regarding required metal painting and ceiling mold remediation. The building has documented recurring rodent issues, with multiple rat sightings and bait applications between 2022-2023, and violations for flower pot encumbrances and bathroom mold.

Several emergency complaints were filed between 2022-2025 concerning plumbing, flooring, and heating systems, with at least two requiring HPD intervention. The building's history shows a concerning pattern of maintenance issues, including an open 2023 violation regarding defective fire retardant walls, missing window guards in Apartment 33, and various other maintenance needs documented in November 2023. A 2021 boiler-related violation was resolved, and there have been multiple inspections for rodent activity, though recent bedbug reports from 2022-2024 indicate no infestations.

The building has undergone some improvements, as evidenced by multiple permits issued, including an electrical work permit in 2019. While basic systems like heating and hot water have required frequent attention, the building has maintained compliance in several areas, with recent inspections showing mixed results regarding maintenance compliance. The property has a documented history of both minor and significant violations that have required attention from multiple city agencies.

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.

413 9th Street Report Contents

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413 9th Street Building Overview

Renter Risk Rating

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

Building Characteristics

Total units 20
Year built 1912
Total area 17970 sq ft
Floors 5
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.
29
Housing Violations
Class B & C housing maintenance code violations.
15
311 Housing Calls
Housing-related 311 service requests in the last 7 years.
0
Work Orders
Repair orders issued by city agencies.
1
ECB Violations
Environmental Control Board violations on record.
0
Evictions
Evictions executed by city marshalls.
4
Rodent Inspections
Rodent inspections conducted by DOHMH.
1
Building Permits
Permits issued by DOB in the last 7 years.

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413 9th Street 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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413 9th Street 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 413 9th Street

Housing Maintenance Code Complaints

This table shows complaints to 311 related to potential NYC Housing Maintenance Code (HMC) for 413 9th Street. 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
2025-01-102025-01-12Heat/hot Water-Apartment OnlyEmergencyCLOSE
2022-10-122023-04-27Plumbing-Bathtub/showerEmergencyCLOSE
2022-10-122023-04-27Flooring/stairs-FloorEmergencyCLOSE
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Housing Maintenance Code Violations

This table shows violations of the NYC Housing Maintenance Code (HMC) issued by HPD for 413 9th Street. 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
2023-11-02CCloseNone33§ 27-2043.1 HMC INSTALL THE MISSING OR REPAIR/REPLACE THE DEFECTIVE WINDOW GUARD(S) IN ACCORDANCE WITH THE SPECIFICATIONS OF THE NEW YORK CITY HEALTH CODE SECTION 24 RCNY CHAPTER 12. WG TO INSTALL = 1; WG TO REPLACE = 0; WG TO REPAIR = 0; IN THE ENTIRE APARTMENT LOCATED AT APT 33, 3rd STORY, 2nd APARTMENT FROM WEST AT NORTH2023-11-28T00:00:00.000Z
2023-11-02BOpenNoneNone§ 27-2005, 2007 ADM CODE REMOVE ALL ENCUMBRANCES CONSISTING OF FLOWER POTSNone
2023-11-02ACloseNone33§ 27-2017.3 HMC: TRACE AND REPAIR THE SOURCE AND ABATE THE VISIBLE MOLD CONDITION... AT CEILING (APPROX 8 SQ FT) IN THE BATHROOM LOCATED AT APT 33, 3rd STORY, 2nd APARTMENT FROM WEST AT NORTHNone
2023-11-02BCloseNoneNone§ 27-2005 ADM CODE PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE FIRE RETARDANT SOUTH & WEST WALLS2023-12-20T00:00:00.000Z
2023-11-02AOpenNoneNone§ 27-2013 ADM CODE PAINT WITH LIGHT COLORED PAINT TO THE SATISFACTION OF THIS DEPARTMENT CEILING, SOUTH & WEST WALLSNone
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311 Service Requests

Service requests made to 311 for 413 9th Street. Data from NYC 311.

Created DateTypeDescriptionStatusAgencyResolution
2025-01-10 10:48HEAT/HOT WATERAPARTMENT ONLYClosedHPD
2023-05-07 10:44RodentRat SightingClosedDOHMH
2022-10-12 12:22FLOORING/STAIRSFLOORClosedHPD
2022-10-12 12:22PLUMBINGBATHTUB/SHOWERClosedHPD
2022-08-17 04:06RodentRat SightingClosedDOHMH
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DOB Complaints

Department of Buildings complaints regarding 413 9th Street.

Complaint #FiledStatusCategoryInspection DateDisposition
39014422023-04-18ACTIVELocal Law 188/17 Compliance Inspections – Active Jobs2023-04-19Inspector Unable To Gain Access – 1st Attempt Made (2023-04-19)
37979142021-05-21CLOSEDBoiler: Defective/Inoperative/No Permit2021-05-21Oath Violation Served (2021-05-21)
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DOB Violations

Department of Buildings violations regarding 413 9th Street.

Date IssuedCategoryDescriptionStatusComments
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Indoor Environment Complaints (DOHMH)

The table below shows indoor environment complaints received regarding the conditions at 413 9th Street. 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 413 9th Street. 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
2024-12-240002023-11-012024-10-31
2023-12-100002022-11-012023-10-31
2022-12-200002021-11-012022-10-31
2022-02-070002020-11-012021-10-31
2021-12-300002020-11-012021-10-31
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Rodent Inspections

Recent rodent inspection results for 413 9th Street. Data from NYC DOHMH.

DateTypeResult
2023-08-25BAITBait applied
2023-08-04ComplianceRat Activity
2023-05-12InitialRat Activity
2022-10-06BAITBait applied
2022-08-02ComplianceRat Activity
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HPD Litigation Explanation

The table below shows the HPD litigation records for 413 9th Street. 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 413 9th Street. 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 413 9th Street. Data from ECB.

DateNumberRespondentDescriptionStatusPenaltyBalance Due
2021-05-2139041477L415 9TH ST TENANTS INC CHBLR ROOM LIGHT DEFECT/DEBRIS@BLR/SAFETY VALVE BODY DRAIN PIPE MISSING/INCORRECT SAFETY VALVE BLR LEFT/OIL TANK VAULT DEFECT/GAS METER ROOM HAS STORAGE/GAS METER ROOM NO VENTILATION;CORRECT VIOLATION+SUBMIT CERTRESOLVE0.00.0
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Alternative Enforcement Program (AEP) Explanation

The table below shows the Alternative Enforcement Program (AEP) records for 413 9th Street. 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 413 9th Street. 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 413 9th Street. 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 413 9th Street. 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 413 9th Street. Data includes sale date, price, buyer, and seller.

DatePriceBuyerSeller

Asbestos Records

Asbestos abatement filings and records for 413 9th Street. 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 413 9th Street. Data includes connection type, date, and status.

MaterialRecord Type

Elevator Permits

Elevator permit records for 413 9th Street. Data includes permit type, issue date, and status.

TypeIssue DateStatus

Landmark Violations

Landmark preservation violations for 413 9th Street. 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 413 9th Street Compares

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