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Building and Landlord Data Analysis Report

309 Jefferson Street, Brooklyn, NY 11237

0
DOB Complaints
11
311 Housing Calls
13
Housing Violations
0
Permits

Risk Assessment

96
Low Risk

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

Our AI predicts there is a 96% chance of no major maintenance issues.
Augrented Insights Report for 309 Jefferson Street

309 Jefferson Street is an 8-unit, 4-story tenement building constructed in 1902, currently owned by David Grunfeld, located in the Bushwick neighborhood of Brooklyn. The building has experienced several recurring issues over the past few years, most notably a persistent rodent problem, with multiple rodent sighting complaints reported in 2023 and ongoing rat activity confirmed in inspections throughout 2024-2025, including recent inspections in April 2025.

The building has maintained a clean bedbug record, with official reports from 2021 through 2025 showing zero infested units, and the most recent report in June 2025 confirmed no current infestations. The property has faced various maintenance challenges, particularly in 2021, when multiple safety-related violations were documented, including issues with smoke detectors, carbon monoxide detectors, doors, and fire escape access. These violations were eventually addressed, with certifications of correction issued in 2023.

The building also experienced a heat and hot water outage affecting the entire building in February 2022, though this was reportedly resolved promptly. Earlier violations from 2019 highlighted problems with a defective fire escape, an unauthorized wooden staircase, and improperly installed air conditioning units, all of which were subsequently addressed. Comprehensive rat control measures have been implemented, with multiple bait applications and inspections over the past year, though rat activity continues to be documented in recent inspections.

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.

309 Jefferson Street Report Contents

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309 Jefferson Street Building Overview

Renter Risk Rating

This building is in the riskiest 10% of buildings in Bushwick.

Building Characteristics

Total units 8
Year built 1902
Total area 6500 sq ft
Floors 4
Tax Abatements None
Building Class NEW LAW TENEMENT
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Key Building Statistics

0
DOB Complaints
Complaints filed with the Department of Buildings in the last 7 years.
13
Housing Violations
Class B & C housing maintenance code violations.
11
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.
22
Rodent Inspections
Rodent inspections conducted by DOHMH.
0
Building Permits
Permits issued by DOB in the last 7 years.

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309 Jefferson 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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309 Jefferson 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 309 Jefferson Street

Housing Maintenance Code Complaints

This table shows complaints to 311 related to potential NYC Housing Maintenance Code (HMC) for 309 Jefferson 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
2022-02-022022-02-09Heat/hot Water-Entire BuildingEmergencyCLOSE
2021-06-142021-07-08Unsanitary Condition-PestsNon EmergencyCLOSE
2021-04-272021-05-16Safety-Carbon Monoxide DetectorEmergencyCLOSE
2021-04-272021-05-16Safety-Smoke DetectorEmergencyCLOSE
2021-04-272021-05-16Door/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 309 Jefferson 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
2024-04-10ACloseNoneNone(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
2023-03-23ACloseNoneNone(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
2022-02-25ACloseNoneNone(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
2021-05-12BOpenNone4R§ 27-2046.1 HMC: REPAIR OR REPLACE THE CARBON MONOXIDE DETECTING DEVICE(S). MISSING IN THE ENTIRE APARTMENT LOCATED AT APT 4R, 4th STORY, APARTMENT AT EAST2023-06-22T00:00:00.000Z
2021-05-12BCloseNone4R§ 27-2045 ADM CODE REPAIR OR REPLACE THE SMOKE DETECTOR MISSING IN THE ENTIRE APARTMENT LOCATED AT APT 4R, 4th STORY, APARTMENT AT EAST2023-07-06T00:00:00.000Z
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311 Service Requests

Service requests made to 311 for 309 Jefferson Street. Data from NYC 311.

Created DateTypeDescriptionStatusAgencyResolution
2023-05-08 07:53RodentRat SightingClosedDOHMH
2023-05-03 20:33RodentRat SightingClosedDOHMH
2022-02-02 23:49HEAT/HOT WATERENTIRE BUILDINGClosedHPD
2021-06-14 13:23UNSANITARY CONDITIONPESTSClosedHPD
2021-04-27 15:00SAFETYSMOKE DETECTORClosedHPD
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DOB Complaints

Department of Buildings complaints regarding 309 Jefferson Street.

Complaint #FiledStatusCategoryInspection DateDisposition
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DOB Violations

Department of Buildings violations regarding 309 Jefferson Street.

Date IssuedCategoryDescriptionStatusComments
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Indoor Environment Complaints (DOHMH)

The table below shows indoor environment complaints received regarding the conditions at 309 Jefferson 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 309 Jefferson 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
2025-06-160002023-11-012024-10-31
2024-07-300002022-11-012023-10-31
2023-04-250002021-11-012022-10-31
2022-03-210002020-11-012021-10-31
2021-04-290002019-11-012020-10-31
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Rodent Inspections

Recent rodent inspection results for 309 Jefferson Street. Data from NYC DOHMH.

DateTypeResult
2025-04-29ComplianceRat Activity
2025-04-08InitialRat Activity
2024-12-19ComplianceRat Activity
2024-10-15InitialRat Activity
2024-04-10InitialPassed
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HPD Litigation Explanation

The table below shows the HPD litigation records for 309 Jefferson 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 309 Jefferson 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 309 Jefferson Street. Data from ECB.

DateNumberRespondentDescriptionStatusPenaltyBalance Due
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Alternative Enforcement Program (AEP) Explanation

The table below shows the Alternative Enforcement Program (AEP) records for 309 Jefferson 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 309 Jefferson 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 309 Jefferson 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 309 Jefferson 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 309 Jefferson Street. Data includes sale date, price, buyer, and seller.

DatePriceBuyerSeller

Asbestos Records

Asbestos abatement filings and records for 309 Jefferson 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 309 Jefferson Street. Data includes connection type, date, and status.

MaterialRecord Type

Elevator Permits

Elevator permit records for 309 Jefferson Street. Data includes permit type, issue date, and status.

TypeIssue DateStatus

Landmark Violations

Landmark preservation violations for 309 Jefferson 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 309 Jefferson Street Compares

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