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Building and Landlord Data Analysis Report

421 51st Street, Brooklyn, NY 11220

4
DOB Complaints
1
311 Housing Calls
0
Housing Violations
6
Permits

Risk Assessment

98
Low Risk

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

Our AI predicts there is a 98% chance of no major maintenance issues.
Augrented Insights Report for 421 51st Street

The two-unit residential building at 421 51st Street in Sunset Park, owned by Adriana Rosa, has shown consistent compliance with most recent housing codes, though there are some notable historical compliance issues. The property, built in 1901 and currently classified as a HERETOFORE CONVERTED CLASS B building, has passed recent rodent inspections (most recent in October 2022) and shows no active bedbug infestations according to the most recent Bedbug Reporting filings in May 2025.

Historically, the building experienced significant issues in 2018-2019, particularly concerning unauthorized construction work and sprinkler system compliance. Multiple ECB violations were issued, including fines related to working while under a stop work order and filing false statements regarding sprinkler permits, though these were subsequently resolved. The building also faced repeated Housing Maintenance Code violations between 2021 and 2024 related to annual bedbug report filing requirements, though recent filings show no current infestations.

The most recent inspection in April 2024 was conducted under the same bedbug reporting violation, indicating ongoing monitoring of this requirement. The property has maintained active compliance through the issuance of multiple permits between 2018-2019 for various improvement works, including plumbing and electrical modifications. The record shows that current management has improved compliance with health and safety regulations, with no recent violations reported since 2022.

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.

421 51st Street Report Contents

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421 51st Street Building Overview

Renter Risk Rating

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

Building Characteristics

Total units 2
Year built 1901
Total area 2592 sq ft
Floors 2
Tax Abatements None
Building Class HERETOFORE CONVERTED CLASS B
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Key Building Statistics

4
DOB Complaints
Complaints filed with the Department of Buildings in the last 7 years.
0
Housing Violations
Class B & C housing maintenance code violations.
1
311 Housing Calls
Housing-related 311 service requests in the last 7 years.
0
Work Orders
Repair orders issued by city agencies.
5
ECB Violations
Environmental Control Board violations on record.
0
Evictions
Evictions executed by city marshalls.
0
Rodent Inspections
Rodent inspections conducted by DOHMH.
6
Building Permits
Permits issued by DOB in the last 7 years.

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421 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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421 51st Street 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 421 51st Street

Housing Maintenance Code Complaints

This table shows complaints to 311 related to potential NYC Housing Maintenance Code (HMC) for 421 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
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Housing Maintenance Code Violations

This table shows violations of the NYC Housing Maintenance Code (HMC) issued by HPD for 421 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
2024-04-08ACloseNoneNone(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
2023-03-20ACloseNoneNone(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
2022-02-22ACloseNoneNone(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
2021-04-06ACloseNoneNone(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
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311 Service Requests

Service requests made to 311 for 421 51st Street. Data from NYC 311.

Created DateTypeDescriptionStatusAgencyResolution
2022-08-02 15:30RodentRat SightingClosedDOHMH
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DOB Complaints

Department of Buildings complaints regarding 421 51st Street.

Complaint #FiledStatusCategoryInspection DateDisposition
36756342018-11-15CLOSEDSprinkler System – Inadequate2018-11-15Building Violation Issued For Failure To Obey Stop Work Order (2018-11-16)
36687142018-09-24CLOSEDSEP – Professional Certification Compliance Audit2020-05-21No Violation Warranted For Complaint At Time Of Inspection (2020-05-21)
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DOB Violations

Department of Buildings violations regarding 421 51st Street.

Date IssuedCategoryDescriptionStatusComments
2019-03-06V*-DOB VIOLATION - DISMISSEDFAILURE TO CERTIFY CORRECTION ON IMMEDIATELY HAZARDOUS (CLASS 1) ECB VIOLATIONECB DISMISSED2019-03-29
2019-03-06V*-DOB VIOLATION - DISMISSEDFAILURE TO CERTIFY CORRECTION ON IMMEDIATELY HAZARDOUS (CLASS 1) ECB VIOLATIONECB DISMISSED2019-03-29
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Indoor Environment Complaints (DOHMH)

The table below shows indoor environment complaints received regarding the conditions at 421 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 421 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
2025-05-120002023-11-012024-10-31
2024-04-300002022-11-012023-10-31
2021-04-210002019-11-012020-10-31
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Rodent Inspections

Recent rodent inspection results for 421 51st Street. Data from NYC DOHMH.

DateTypeResult
2022-10-11InitialPassed
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HPD Litigation Explanation

The table below shows the HPD litigation records for 421 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 421 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 421 51st Street. Data from ECB.

DateNumberRespondentDescriptionStatusPenaltyBalance Due
2018-11-1535352332NRB MECHANICAL LLCFILED A CERTIFICATE,FORM APPLICATION ETC, CONTAINING A MATERIAL FALSE STATEMENTS.I OBSERVED AS PER DOB RECORDS ABOVE RESPONDENT E-FILED A SPRINKLER PERMIT LAA #340224894 WHILE VIOLATIONS EXISTING ON PROPERTRESOLVE0.00.0
2018-11-1535352333PRB MECHANICAL LLCUNLAWFULLY CONTINUED WORK WHILE ON NOTICE OF A STOP WORK ORDER. I OBSERVED AS PER DOB RECORDS AND OBSERVED ON SPRINKLER SYSTEM IN BUILDING NEWLY INSTALLED SPRINKLER HEADS REPLACED THROUGHOUT BUILDING ANDRESOLVE0.00.0
2018-06-1435339458MMAXWELL CARPENTRY CORPFAILURE TO COMPLY WITH THE COMMISSIONERS ORDER CONTAINED IN SUMMONS/VIOLATION #35303845H ISSUED ON 05/10118 AND TO FILE A CERTIFICATE OF CORRECTION PURSUANT TO 28-201.1 AND 1RCNY 102-01.WORKING WHILE ON A STOPRESOLVE625.00.0
2018-05-0135303845HMAXWELL CARPENTRY CORPUNLAWFULLY CONTINUED WORK WHILE ON NOTICE OF A STOP WORK ORDER AT TIMEOF INSPECTION TWO MALE WORKERS AT PREMISS DOING FRAMING CONTRARY TO STOP WORK ORDERS #35301200P, 35115005R AND 35115006Z. RMDY: COMPLY WITHRESOLVE12500.00.0
2018-01-1335304200PRUIZ MARTAWORK W/O PERMIT. AT TIME OF INSPECTION OBSERVED FROM BACK OF HOUSE WORKER IN TOP FLOOR CHANGING WINDOW FRAME. WORKER DENIED ACCESS TO INSPECT SITE FROM INSIDE. NO PERMIT IN DOB RECORDS. FULL STOP WORK ORDER ISSRESOLVE0.00.0
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Alternative Enforcement Program (AEP) Explanation

The table below shows the Alternative Enforcement Program (AEP) records for 421 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 421 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 421 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 421 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 421 51st Street. Data includes sale date, price, buyer, and seller.

DatePriceBuyerSeller

Asbestos Records

Asbestos abatement filings and records for 421 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 421 51st Street. Data includes connection type, date, and status.

MaterialRecord Type

Elevator Permits

Elevator permit records for 421 51st Street. Data includes permit type, issue date, and status.

TypeIssue DateStatus

Landmark Violations

Landmark preservation violations for 421 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 421 51st Street Compares

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