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Building and Landlord Data Analysis Report

535 51st Street, Brooklyn, NY 11220

1
DOB Complaints
21
311 Housing Calls
7
Housing Violations
0
Permits

Risk Assessment

94
Low Risk

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

Our AI predicts there is a 94% chance of no major maintenance issues.
Augrented Insights Report for 535 51st Street

535 51st Street is a 4-story, 9-unit New Law Tenement building constructed in 1921, currently owned by Changen Jiang. The property has experienced recurring issues with heat and hot water, with multiple building-wide complaints reported in January 2024 and most recently in December 2024, though in all instances, tenants reported that services were restored by the time HPD inspectors arrived. The building has also faced challenges with pests, with two sanitation complaints filed in October 2024 and January 2024, though inspections found no violations of housing laws.

Three significant housing maintenance code violations were issued in November 2024, including an illegal gas range installation in the basement, unauthorized living space conversion in the basement, and improper means of egress from the yard. While most code violations from previous years have been resolved, there are current violations regarding self-closing doors that were documented in January 2024. The building has maintained a consistent record of bedbug reporting compliance, with all annual reports from 2020 to 2025 showing zero infestation or eradication cases.

Historical records show previous violations from 2020 regarding public hall conditions, which were subsequently addressed. An active ECB violation from November 2024 remains regarding an allegedly illegal basement conversion with an unlawful gas range, with a penalty imposed but partially unpaid. The building's management history shows regular responses to maintenance requests, though the pattern of heat and hot water complaints suggests ongoing infrastructure challenges.

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.

535 51st Street Report Contents

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535 51st Street Building Overview

Renter Risk Rating

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

Building Characteristics

Total units 9
Year built 1921
Total area 7140 sq ft
Floors 4
Tax Abatements None
Building Class NEW LAW TENEMENT
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Key Building Statistics

1
DOB Complaints
Complaints filed with the Department of Buildings in the last 7 years.
7
Housing Violations
Class B & C housing maintenance code violations.
21
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.
0
Rodent Inspections
Rodent inspections conducted by DOHMH.
0
Building Permits
Permits issued by DOB in the last 7 years.

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535 51st 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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535 51st 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 535 51st Street

Housing Maintenance Code Complaints

This table shows complaints to 311 related to potential NYC Housing Maintenance Code (HMC) for 535 51st 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
2024-12-032024-12-08Heat/hot Water-Entire BuildingEmergencyCLOSE
2024-10-282024-11-24Unsanitary Condition-PestsNon EmergencyCLOSE
2024-10-282024-11-24Water Leak-Slow LeakNon EmergencyCLOSE
2024-01-042024-02-25Unsanitary Condition-PestsNon EmergencyCLOSE
2024-01-112024-01-13Heat/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 535 51st 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
2024-11-20BOpenNoneNone§ 27-2070 ADM CODE DISCONTINUE UNLAWFUL COOKING SPACE OR FILE PLANS AND APPLICATION WITH THIS DEPARTMENT TO LEGALIZE SAME, IF LAWFULLY FEASIBLE, GAS RANGE AT BASEMENTNone
2024-11-20BOpenNoneNone§ 53,187,231 M/D LAW & DEPT RULES & REG. PROVIDE MEANS OF EGRESS FROM YARD TO STREET BY FIREPROOF PASSAGEWAY FOR WHICH APPLICATION MUST BE FILED FOR APPROVAL,OR BY UNLOCKED DOOR OR GATE IN FENCE TO ADJOINING PREMISES WITH CONSENT OF ADJACENT OWNER.None
2024-11-20BOpenNoneNone§ 27-2081 ADM CODE DISCONTINUE USE OF ROOMS FOR LIVING, DISCONNECT PLUMBING FIXTURES AND PROPERLY SEAL PIPE CONNECTIONS SHOWER STALL, WATER CLOSET AND WASH BASIN AT BASEMENTNone
2024-02-11CCloseNoneNone§ 27-2005, 27-2007, 27-2041.1 HMC, §238, § 309; § 107 (2) ( C) MDL AND 28 RCNY §25-171: REPLACE OR REPAIR THE SELF-CLOSING DOORS THAT IS MISSING OR DEFECTIVE HINGES AT PUBLIC HALL, 1st STORY2024-02-27T00:00:00.000Z
2024-01-06COpenNoneNone§ 27-2005, 27-2007, 27-2041.1 HMC, §238, § 309; § 107 (2) ( C) MDL AND 28 RCNY §25-171: REPLACE OR REPAIR THE SELF-CLOSING DOORS THAT IS MISSING OR DEFECTIVE HINGE AT DOOR TO CELLAR AT WEST , 1st STORY2024-01-30T00:00:00.000Z
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311 Service Requests

Service requests made to 311 for 535 51st Street. Data from NYC 311.

Created DateTypeDescriptionStatusAgencyResolution
2024-12-03 09:28HEAT/HOT WATERENTIRE BUILDINGClosedHPD
2024-10-28 18:05UNSANITARY CONDITIONPESTSClosedHPD
2024-10-28 18:05WATER LEAKSLOW LEAKClosedHPD
2024-01-12 00:55HEAT/HOT WATERAPARTMENT ONLYClosedHPD
2024-01-11 21:35HEAT/HOT WATERENTIRE BUILDINGClosedHPD
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DOB Complaints

Department of Buildings complaints regarding 535 51st Street.

Complaint #FiledStatusCategoryInspection DateDisposition
39849272024-11-20CLOSEDIllegal Conversion2025-01-10Inspector Unable To Gain Access – 2nd Final Attempt (2025-01-10)
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DOB Violations

Department of Buildings violations regarding 535 51st Street.

Date IssuedCategoryDescriptionStatusComments
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Indoor Environment Complaints (DOHMH)

The table below shows indoor environment complaints received regarding the conditions at 535 51st 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 535 51st 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
2025-02-120002023-11-012024-10-31
2024-01-210002022-11-012023-10-31
2024-01-210002022-11-012023-10-31
2023-03-190002021-11-012022-10-31
2022-05-020002020-11-012021-10-31
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Rodent Inspections

Recent rodent inspection results for 535 51st Street. Data from NYC DOHMH.

DateTypeResult
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HPD Litigation Explanation

The table below shows the HPD litigation records for 535 51st 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 535 51st 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 535 51st Street. Data from ECB.

DateNumberRespondentDescriptionStatusPenaltyBalance Due
2024-11-2035485936NJIANG KONG REALTY CORP.OCCUPANCY CONTRARY TO THAT ALLOWED BY C OF O AND/OR THE DEPARTMENT OF BUILDING RECORDS. PARTITION ERECTED CREATING AN ILLEGAL CLASS "A" APARTMENT AT BASEMENT. UNLAWFUL GAS RANGE AND KITCHEN SINK PRESENT. ALSO FACTIVE1250.0630.0
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Alternative Enforcement Program (AEP) Explanation

The table below shows the Alternative Enforcement Program (AEP) records for 535 51st 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 535 51st 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 535 51st 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 535 51st 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 535 51st Street. Data includes sale date, price, buyer, and seller.

DatePriceBuyerSeller

Asbestos Records

Asbestos abatement filings and records for 535 51st 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 535 51st Street. Data includes connection type, date, and status.

MaterialRecord Type

Elevator Permits

Elevator permit records for 535 51st Street. Data includes permit type, issue date, and status.

TypeIssue DateStatus

Landmark Violations

Landmark preservation violations for 535 51st 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 535 51st Street Compares

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