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Building and Landlord Data Analysis Report

394 Warren Street, Brooklyn, NY 11217

1
DOB Complaints
6
311 Housing Calls
0
Housing Violations
0
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 394 Warren Street

The four-story, six-unit building at 394 Warren Street in Carroll Gardens, owned by Michael Mayo, has experienced persistent rodent issues over the past several years, with the most recent inspections in early 2025 showing continued rat activity. The property has a documented history of 311 service requests related to rodent problems, including multiple complaints about conditions attracting rodents and food establishment violations involving rodents, insects, and garbage between 2019 and 2025.

The building has also faced administrative violations regarding bedbug reporting compliance in 2021, 2022, 2023, and 2024, though the most recent bedbug report filed in July 2025 for the period ending October 2024 indicates no infested units. Additional concerns include a heavy water leak incident reported in August 2021, which was inspected by HPD with no violations issued, and various food establishment-related complaints to the Department of Health and Mental Hygiene.

The property has an active ECB violation from October 2018 related to unauthorized signage work, with a penalty of $6,250 imposed for unpermitted installation of a rooftop sign. The building's rodent-related challenges have been documented through regular inspections, with the most recent findings in 2025 showing ongoing rat activity, despite previous attempts to address the issue through multiple compliance and initial inspections dating back to 2020.

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.

394 Warren Street Report Contents

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394 Warren StreetBuilding Overview

Renter Risk Rating

This building is in the riskiest 10% of buildings in Carroll Gardens.

Building Characteristics

Total units 6
Year built 1931
Total area 6275 sq ft
Floors 4
Tax Abatements None
Building Class OLD LAW TENEMENT
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Key Building Statistics

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

Included Addresses

  • 188 Hoyt St, New York, NY 11217
  • 396 Warren St, New York, NY 11217
  • 194 Hoyt St, New York, NY 11217
  • 196 Hoyt St, New York, NY 11217
  • 394 Warren St, New York, NY 11217

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394 Warren 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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394 Warren Street 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 394 Warren Street

Housing Maintenance Code Complaints

This table shows complaints to 311 related to potential NYC Housing Maintenance Code (HMC) for 394 Warren 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
2021-08-212021-08-26Water Leak-Heavy FlowEmergencyCLOSE
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Housing Maintenance Code Violations

This table shows violations of the NYC Housing Maintenance Code (HMC) issued by HPD for 394 Warren 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
2024-04-16ACloseNoneNone(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
2023-03-29ACloseNoneNone(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
2022-03-08ACloseNoneNone(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
2021-04-16ACloseNoneNone(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 394 Warren Street. Data from NYC 311.

Created DateTypeDescriptionStatusAgencyResolution
2025-05-12 11:53RodentRat SightingClosedDOHMH
2023-11-17 08:52Food EstablishmentPermit/License/CertificateClosedDOHMH
2022-12-21 02:49Food EstablishmentRodents/Insects/GarbageClosedDOHMH
2021-08-21 22:18WATER LEAKHEAVY FLOWClosedHPD
2020-08-24 13:58RodentCondition Attracting RodentsClosedDOHMH
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DOB Complaints

Department of Buildings complaints regarding 394 Warren Street.

Complaint #FiledStatusCategoryInspection DateDisposition
36795392018-12-16CLOSEDStorefront or Business Sign/Awning/Marquee/Canopy – ILLEGAL2020-02-28No Violation Warranted For Complaint At Time Of Inspection (2020-02-28)
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DOB Violations

Department of Buildings violations regarding 394 Warren Street.

Date IssuedCategoryDescriptionStatusComments
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Indoor Environment Complaints (DOHMH)

The table below shows indoor environment complaints received regarding the conditions at 394 Warren 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 394 Warren 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
2025-07-080002023-11-012024-10-31
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Rodent Inspections

Recent rodent inspection results for 394 Warren Street. Data from NYC DOHMH.

DateTypeResult
2025-03-26ComplianceRat Activity
2025-02-26InitialRat Activity
2020-11-23ComplianceFailed for Other R
2020-09-11InitialRat Activity
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HPD Litigation Explanation

The table below shows the HPD litigation records for 394 Warren 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 394 Warren 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 394 Warren Street. Data from ECB.

DateNumberRespondentDescriptionStatusPenaltyBalance Due
2018-10-1735369855NMAYO, MICHAELWORK W/O A PERMIT. ERECTED A BUSINESS SIGN APPROX:4 1/2"X4'X50' COVERSTHE WHOLE FRONT OF STORE READS "FRIED CHICKEN&PIZZA. ALSO NOTED:ON ROOF A SIGN "VERTICALLY READING CHICKEN". THIS ROOF SIGN IS ILLUMINATED AACTIVE6250.06250.0
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Alternative Enforcement Program (AEP) Explanation

The table below shows the Alternative Enforcement Program (AEP) records for 394 Warren 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 394 Warren 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 394 Warren 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 394 Warren 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 394 Warren Street. Data includes sale date, price, buyer, and seller.

DatePriceBuyerSeller

Asbestos Records

Asbestos abatement filings and records for 394 Warren 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 394 Warren Street. Data includes connection type, date, and status.

MaterialRecord Type

Elevator Permits

Elevator permit records for 394 Warren Street. Data includes permit type, issue date, and status.

TypeIssue DateStatus

Landmark Violations

Landmark preservation violations for 394 Warren 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 394 Warren Street Compares

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