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Building and Landlord Data Analysis Report

35 Underhill Avenue, Brooklyn, NY 11238

10
DOB Complaints
3
311 Housing Calls
0
Housing Violations
1
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 35 Underhill Avenue

The 6-story, 39-unit residential building at 35 Underhill Avenue in Prospect Heights, owned by Thien Nguyen and completed in 2005, has experienced several significant maintenance issues in recent years. Most notably, in late 2023, there were emergency complaints regarding door/window conditions and unsanitary sewage problems, though the Department of Housing Preservation and Development (HPD) was unable to access the premises for inspection in early 2024.

The building has maintained a clean record regarding bedbug infestations, with no reports filed in the past seven reporting periods from 2018 through 2024. Recent attention has focused on the building's sidewalk shed and scaffold conditions, with multiple inspections in 2025 revealing some violations, including two Oath Violations served in May 2025 and several inspections earlier in 2024 where no violations were warranted.

Historical records show a rodent sighting complaint in 2019, though the building has passed all six rodent inspections conducted between 2019 and 2025, most recently in May 2025. A notable housing maintenance code violation was issued in March 2022 regarding the failure to file an annual bedbug report, which appears to have been addressed subsequently. The building's systems and infrastructure have generally passed required inspections, with the most recent inspection in 2025 indicating compliance with rodent control requirements.

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.

35 Underhill Avenue Report Contents

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35 Underhill Avenue Building Overview

Renter Risk Rating

This building is in the riskiest 10% of buildings in Prospect Heights.

Building Characteristics

Total units 39
Year built 2005
Total area 60626 sq ft
Floors 6
Tax Abatements None
Building Class HEREAFTER ERECTED CLASS A
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Key Building Statistics

10
DOB Complaints
Complaints filed with the Department of Buildings in the last 7 years.
0
Housing Violations
Class B & C housing maintenance code violations.
3
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.
1
Building Permits
Permits issued by DOB in the last 7 years.

Map and Aerial View of 35 Underhill Avenue

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35 Underhill 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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35 Underhill Avenue Rent Control Status

Year Built
Built after 1974
Units
More than 6 units
RGB Registration
Not registered
Tax Abatement
None found
Year BuiltUnitsRGB RegistrationTax Abatement
After 1974 >6 units Not registered None

Full Building Data for 35 Underhill Avenue

Housing Maintenance Code Complaints

This table shows complaints to 311 related to potential NYC Housing Maintenance Code (HMC) for 35 Underhill 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
2023-12-302024-05-25Unsanitary Condition-SewageEmergencyCLOSE
2023-12-302024-05-25Door/window-DoorEmergencyCLOSE
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Housing Maintenance Code Violations

This table shows violations of the NYC Housing Maintenance Code (HMC) issued by HPD for 35 Underhill 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
2022-03-09ACloseNoneNone(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 35 Underhill Avenue. Data from NYC 311.

Created DateTypeDescriptionStatusAgencyResolution
2023-12-30 18:15DOOR/WINDOWDOORClosedHPD
2023-12-30 18:15UNSANITARY CONDITIONSEWAGEClosedHPD
2019-08-02 07:07RodentRat SightingClosedDOHMH
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DOB Complaints

Department of Buildings complaints regarding 35 Underhill Avenue.

Complaint #FiledStatusCategoryInspection DateDisposition
2025-05-30CLOSEDSidewalk Shed/Supported Scaffold/Inadequate/Defect/NONE/NO PMT/NO CERT2025-06-03Oath Violation Served (2025-06-03)
2025-05-02CLOSEDSidewalk Shed/Supported Scaffold/Inadequate/Defect/NONE/NO PMT/NO CERT2025-05-06No Violation Warranted For Complaint At Time Of Inspection (2025-05-07)
2025-04-29CLOSEDSidewalk Shed/Supported Scaffold/Inadequate/Defect/NONE/NO PMT/NO CERT2025-04-30Oath Violation Served (2025-04-30)
2025-04-05CLOSEDSidewalk Shed/Supported Scaffold/Inadequate/Defect/NONE/NO PMT/NO CERT2025-04-07No Violation Warranted For Complaint At Time Of Inspection (2025-04-07)
2025-03-25CLOSEDSidewalk Shed/Supported Scaffold/Inadequate/Defect/NONE/NO PMT/NO CERT2025-03-26No Violation Warranted For Complaint At Time Of Inspection (2025-03-26)
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DOB Violations

Department of Buildings violations regarding 35 Underhill Avenue.

Date IssuedCategoryDescriptionStatusComments
2024-05-01V*-DOB VIOLATION - DISMISSEDFAILURE TO CERTIFY CORRECTION ON IMMEDIATELY HAZARDOUS (CLASS 1) ECB VIOLATIONECB DISMISSED2024-05-17
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Indoor Environment Complaints (DOHMH)

The table below shows indoor environment complaints received regarding the conditions at 35 Underhill 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 35 Underhill 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
2024-12-310002023-11-012024-10-31
2023-12-010002022-11-012023-10-31
2022-12-300002021-11-012022-10-31
2022-06-010002020-11-012021-10-31
2020-12-150002019-11-012020-10-31
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Rodent Inspections

Recent rodent inspection results for 35 Underhill Avenue. Data from NYC DOHMH.

DateTypeResult
2025-05-12InitialPassed
2024-05-13InitialPassed
2023-05-23InitialPassed
2021-08-10InitialPassed
2019-08-07InitialPassed
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HPD Litigation Explanation

The table below shows the HPD litigation records for 35 Underhill 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 35 Underhill 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 35 Underhill Avenue. Data from ECB.

DateNumberRespondentDescriptionStatusPenaltyBalance Due
2024-02-2039525690LDEMARI SERVICR INCAT TIME OF MY INSPECTION OF A 5 STORY BUILDING, I OBSERVED SIDEWALK SHED IN PLACE AT EXPOSURE #1&2 WITH A VALID PERMIT DATE: 03-31-2024 ALSO SUSPENDED SCAFFOLD INSTALLED AT EXPOSURE #1, UPON REVIEW OF THE DEPARRESOLVE0.00.0
2020-02-1337018710KTHE WASHINGTON CONDOMINIUFAILURE TO SUBMIT A REQUIRED CYCLE 8C REPORT OF CRITICAL EXAMINATION DOCUMENTING CONDITION OF EXTERIOR WALLS & APPURTENANCES REQUIRED BY 28-302.4 FOR CONTROL#814503. REMEDY: SUBMIT ACCEPTABLE REQUIRED TECHNICARESOLVE0.00.0
2019-02-0539001286MTHE WASHINGTON CONDOMINIUCLASS ONE ITEMS: 1) F2 FUSE BYPASSED, 2) FIRE SERVICE KEY SWITCH DEFECTIVE CLASS 2 ITEMS: MISSING IN CASE OF FIRE SIGNS, OIL AND WATER LEAK IN PIT, UNGUARDED SUMP PUMP, DEFECTIVE CAR PHONE, MISALIGNED CAB MIRRRESOLVE1250.00.0
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Alternative Enforcement Program (AEP) Explanation

The table below shows the Alternative Enforcement Program (AEP) records for 35 Underhill 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 35 Underhill 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 35 Underhill 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 35 Underhill 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 35 Underhill Avenue. Data includes sale date, price, buyer, and seller.

DatePriceBuyerSeller

Asbestos Records

Asbestos abatement filings and records for 35 Underhill 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 35 Underhill Avenue. Data includes connection type, date, and status.

MaterialRecord Type

Elevator Permits

Elevator permit records for 35 Underhill Avenue. Data includes permit type, issue date, and status.

TypeIssue DateStatus

Landmark Violations

Landmark preservation violations for 35 Underhill 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 35 Underhill Avenue Compares

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