You need to enable JavaScript to use this site.312 East 21st Street, Brooklyn Report | Augrented NYC Apartment Ratings & Reviews
Building and Landlord Data Analysis Report

312 East 21st Street, Brooklyn, NY 11226

25
DOB Complaints
226
311 Housing Calls
219
Housing Violations
0
Permits

Risk Assessment

16
High Risk

This building is in the riskiest 10% of buildings in NYC with significant maintenance issues.

Our AI predicts there is a 16% chance of no major maintenance issues.
Augrented Insights Report for 312 East 21st Street

The six-story, 54-unit building at 312 East 21st Street in Flatbush, built in 1940 and currently owned by Yida Stern, has experienced several recurring maintenance issues in recent years. Most notably, there have been persistent problems with doors and windows, as evidenced by multiple complaints and violations between May and June 2025, including door and window frame issues that resulted in HPD inspections and citations. The building has faced several plumbing-related concerns this year, including toilet and bathtub/shower problems, though inspection access could not be granted in some cases.

A significant heating and hot water outage was reported and resolved in January 2025. Apartment 4C has multiple violations from a November 2024 inspection, including issues with plaster surfaces, door functionality, a defective smoke detector, and an infestation problem that remained open as of the most recent data. The elevator system has been a frequent source of complaints, with multiple reports of single device issues between November 2023 and February 2024, though inspections did not always find violations. Environmental Control Board violations were noted in 2020 through 2024, particularly related to elevator safety features and maintenance requirements, with some recent violations remaining active.

The building's maintenance history shows a pattern of problems requiring attention, including recent complaints about pests (June 2025), plumbing issues, electrical problems, and general maintenance needs. While the building has demonstrated compliance with bedbug reporting requirements showing zero infestations since 2018, there have been rodent activity reports from 2010-2017, and recent pest-related complaints in 2025 suggest ongoing issues. The elevator system has required multiple repairs and improvements as documented in ECB violations, though inspections have sometimes found no violations at the time of inspection. The pattern of complaints and violations indicates ongoing maintenance challenges, with particular attention needed to address recurring door, window, and plumbing issues, as well as compliance with housing maintenance codes.

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.

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312 East 21st Street Building Overview

Renter Risk Rating

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

Building Characteristics

Total units 54
Year built 1940
Total area 55426 sq ft
Floors 6
Tax Abatements None
Building Class HEREAFTER ERECTED CLASS A
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Key Building Statistics

25
DOB Complaints
Complaints filed with the Department of Buildings in the last 7 years.
219
Housing Violations
Class B & C housing maintenance code violations.
226
311 Housing Calls
Housing-related 311 service requests in the last 7 years.
6
Work Orders
Repair orders issued by city agencies.
5
ECB Violations
Environmental Control Board violations on record.
2
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.

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312 East 21st 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!

312 East 21st 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 312 East 21st Street

Housing Maintenance Code Complaints

This table shows complaints to 311 related to potential NYC Housing Maintenance Code (HMC) for 312 East 21st 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
2025-06-242025-07-04Unsanitary Condition-PestsNon EmergencyCLOSE
2025-06-242025-07-04Door/window-DoorEmergencyCLOSE
2025-06-242025-07-04Door/window-Door FrameNon EmergencyCLOSE
2025-06-242025-07-04Flooring/stairs-FloorEmergencyCLOSE
2025-06-242025-07-04Unsanitary Condition-PestsNon EmergencyCLOSE

Housing Maintenance Code Violations

This table shows violations of the NYC Housing Maintenance Code (HMC) issued by HPD for 312 East 21st 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
2024-11-25CCloseNone4CHMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT 4C, 3rd STORY, 1st APARTMENT FROM NORTH AT EAST2024-12-30T00:00:00.000Z
2024-11-25BCloseNone4C§ 27-2046.1 HMC: REPAIR OR REPLACE THE CARBON MONOXIDE DETECTING DEVICE(S). DEFECTIVE IN THE ENTIRE APARTMENT LOCATED AT APT 4C, 3rd STORY, 1st APARTMENT FROM NORTH AT EASTNone
2024-11-25CCloseNone4C§ 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 DOOR IN THE ENTRANCE LOCATED AT APT 4C, 3rd STORY, 1st APARTMENT FROM NORTH AT EASTNone
2024-11-25BCloseNone4C§ 27-2026 ADM CODE REMOVE ALL OBSTRUCTIONS AND REPAIR ALL DEFECTS IN WASTELINE AT SINK IN THE KITCHEN LOCATED AT APT 4C, 3rd STORY, 1st APARTMENT FROM NORTH AT EASTNone
2024-11-25COpenNone4CHMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF ROACHES IN THE ENTIRE APARTMENT LOCATED AT APT 4C, 3rd STORY, 1st APARTMENT FROM NORTH AT EASTNone

311 Service Requests

Service requests made to 311 for 312 East 21st Street. Data from NYC 311.

Created DateTypeDescriptionStatusAgencyResolution
2025-06-09 15:11PLUMBINGTOILETClosedHPD
2025-06-01 18:56DOOR/WINDOWDOORClosedHPD
2025-05-19 14:21DOOR/WINDOWDOORClosedHPD
2025-05-19 14:21DOOR/WINDOWWINDOW FRAMEClosedHPD
2025-05-14 12:35DOOR/WINDOWDOORClosedHPD

DOB Complaints

Department of Buildings complaints regarding 312 East 21st Street.

Complaint #FiledStatusCategoryInspection DateDisposition
39458332024-02-01CLOSEDElevator: Single Device on Property/No Alternate Service2024-03-18Oath Violation Served (2024-03-18)
39375052023-12-04CLOSEDElevator: Single Device on Property/No Alternate Service2023-12-28No Violation Warranted For Complaint At Time Of Inspection (2023-12-28)
39369542023-11-28CLOSEDElevator: Single Device on Property/No Alternate Service2023-12-28Please See Complaint Number (2023-12-28)
39365942023-11-24CLOSEDElevator: Single Device on Property/No Alternate Service2023-11-28No Violation Warranted For Complaint At Time Of Inspection (2023-11-28)
39360222023-11-20CLOSEDElevator: Single Device on Property/No Alternate Service2023-11-24Oath Violation Served (2023-11-24)

DOB Violations

Department of Buildings violations regarding 312 East 21st Street.

Date IssuedCategoryDescriptionStatusComments
2023-10-04V-DOB VIOLATION - ACTIVEFAILURE TO CERTIFY CORRECTION ON IMMEDIATELY HAZARDOUS (CLASS 1) ECB VIOLATION
2021-06-02V*-DOB VIOLATION - DISMISSEDFAILURE TO FILE BENCHMARKING REPORT OF ENERGY USE AS PER AD. CODE SEC. 28-309.4CONFIRMED SUBMISSION2022-06-08
2020-12-09V*-DOB VIOLATION - DISMISSEDFAILURE TO CERTIFY CORRECTION ON IMMEDIATELY HAZARDOUS (CLASS 1) ECB VIOLATIONMZX CERTIFICATION RECEIVED BEFORE AEUHAZ2021-01-09
2020-10-26V-DOB VIOLATION - ACTIVE
2019-11-08V*-DOB VIOLATION - DISMISSEDVIOLATION ISSUED FOR FAILURE TO FILE ANNUAL BOILER 2017 INSPECTION REPORTCIANOW CRM Violation Dismissed2022-07-08

Indoor Environment Complaints (DOHMH)

The table below shows indoor environment complaints received regarding the conditions at 312 East 21st Street. The information includes the date, type, description, and status of each complaint. The data is sourced from DOHMH/311.

Bedbug Infestations

The table below shows the bedbug reports filed by the landlord for 312 East 21st 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
2024-12-240002023-11-012024-10-31
2023-12-280002022-11-012023-10-31
2022-12-270002021-11-012022-10-31
2021-12-290002020-11-012021-10-31
2018-12-270002017-11-012018-11-30

Rodent Inspections

Recent rodent inspection results for 312 East 21st Street. Data from NYC DOHMH.

DateTypeResult
2017-10-31BAITBait applied
2017-10-17BAITBait applied
2017-09-26BAITBait applied
2017-06-28ComplianceRat Activity
2017-06-14InitialRat Activity

HPD Litigation Explanation

The table below shows the HPD litigation records for 312 East 21st 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

OATH Cases Explanation

The table below shows the Office of Administrative Trials and Hearings cases for 312 East 21st 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

ECB Violations

Environmental Control Board violations for 312 East 21st Street. Data from ECB.

DateNumberRespondentDescriptionStatusPenaltyBalance Due
2024-03-1839108983H312 EAST 21 HOLDING LLCPROVIDE DESIGNATED LOBBY BRAILLE TAGS. PROVIDE EXPLICITLY DETAILED INFO, POSTED IN A CONSPICUOUS LOCATION, LOCATION AND/OR NUMBER OF HOW/WHERE TO OBTAIN KEYS TO MACHINE ROOM.RESOLVE0.00.0
2023-11-2439100001N312 EAST 21 HOLDING LLCCLASS 1 ITEM: FAILURE TO MAINTAIN BUILDING IN CODE COMPLIANT MANNER. UPON INSPECTION, THE DEVICE IS FOUND TO BE OUT OF SERVICE, DUE TO ONGOING WORK LISTED ON PERMIT B08030765-I1-VT, WHICH WAS ISSUED ON 11/14/22RESOLVE1250.01250.0
2023-04-0339082892J312 EAST 21 HOLDING LLCMISSING IN CASE OF FIRE SIGN IN LOBBY. BSMT HATCH DOOR UNLABLED. MISALIGNED CAB MIRROR. MISSING CONTROLLER PRINTS. MISALIGNED MACHINE ROOM DOOR WITH DEFECTIVE LOCK.RESOLVE0.00.0
2022-07-1139065563Y312 EAST 21 HOLDING LLCPROVIDE MOTOR ROOM DOOR SIGN., REPAIR MOTOR ROOM WINDOWS., PROVIDE IN-CAR MIRRIR., REPAIR TRAVEL CABLE INSULATION COVERING., DLM IMPROPERLY INSTALLED ON THIS DEVICE. NO FIREMANS' SERVICE PRESENT IN CONTROLLER.ACTIVE1250.00.0
2020-09-1539028666Y312 EAST 21 HOLDING LLCNO DOOR LOCK MONITORING INSTALLED IN THIS CONTROLLER AS MANDATED BY 3.10.12 OF APPENDIX K3 OF THE 2014 NYCBC. THIS IS A CONTROLLER FEATURE WHICH ENSURES PASSENGER SAFETY. REMEDY; FILE APPLICATION, INSTALL DLM ARESOLVE1250.00.0

Alternative Enforcement Program (AEP) Explanation

The table below shows the Alternative Enforcement Program (AEP) records for 312 East 21st 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

Vacate Orders Explanation

The table below shows the vacate orders for 312 East 21st 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

Work Orders Explanation

The table below shows the work orders for 312 East 21st 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

Liens Explanation

The table below shows tax and water liens for 312 East 21st 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

Case NumberDateTypeStatusDetails

Sales Records

Sales transactions for 312 East 21st Street. Data includes sale date, price, buyer, and seller.

DatePriceBuyerSeller

Asbestos Records

Asbestos abatement filings and records for 312 East 21st Street. Data includes filing date, type, and status.

Start DateEnd DateStatusProcedureFloor

Fire Violations

Violations issued by the Fire Department for this property.

Violation NumberDateDescriptionStatus

Fire Inspections

Fire Department inspection records for this property.

Fire Certificates

Fire safety certificates for this property.

TypeIssue DateExpiration

Water Connections

Water connection permits and records for 312 East 21st Street. Data includes connection type, date, and status.

MaterialRecord Type

Elevator Permits

Elevator permit records for 312 East 21st Street. Data includes permit type, issue date, and status.

TypeIssue DateStatus

Landmark Violations

Landmark preservation violations for 312 East 21st 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 312 East 21st Street Compares

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