You need to enable JavaScript to use this site.521 West 23rd Street, Manhattan Report | Augrented NYC Apartment Ratings & Reviews
Building and Landlord Data Analysis Report

521 West 23rd Street, Manhattan, NY 10011

6
DOB Complaints
3
311 Housing Calls
5
Housing Violations
3
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 521 West 23rd Street

521 West 23rd Street, a 10-story altered commercial building constructed in 1914 in Chelsea, currently owned by William Harra, has recently experienced multiple quality-of-life issues, particularly in 2025. The building has generated numerous complaints regarding unsanitary conditions, with multiple reports of pests (April and May 2025) and ceiling paint/plaster issues. An April 2025 inspection found problems with windows/doors and evidence of mold.

More concerning are several open violations discovered in April 2024 in Apartment 9, including defective smoke and carbon monoxide detectors, as well as inadequate gas supply to kitchen fixtures. The building's system maintenance history shows a notable environmental control board violation from April 2024 regarding the boiler system, which carries a significant penalty ($2,815 balance due) for various safety concerns including exposed wiring and a defective safety relief valve. The property has maintained an active record of addressing building maintenance regulations, including passing nine rodent inspections between 2010 and 2024, though recent years have shown increasing maintenance challenges.

While the building has complied with bedbug reporting requirements (showing no infestations from 2020 to 2024), there have been multiple apartment-specific violations requiring attention, particularly in 2024-2025. Past records indicate various construction-related complaints, particularly in 2023-2024, though these were generally found to have no violations upon inspection. The building's permit history shows activity in 2018 and 2020, with all permits issued, though the nature of these permits is not specified in the data provided.

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.

521 West 23rd Street Report Contents

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521 West 23rd Street Building Overview

Renter Risk Rating

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

Building Characteristics

Total units 7
Year built 1914
Total area 36866 sq ft
Floors 10
Tax Abatements None
Building Class COMMERCIAL ALTERED CLASS A
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Key Building Statistics

6
DOB Complaints
Complaints filed with the Department of Buildings in the last 7 years.
5
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.
2
ECB Violations
Environmental Control Board violations on record.
0
Evictions
Evictions executed by city marshalls.
0
Rodent Inspections
Rodent inspections conducted by DOHMH.
3
Building Permits
Permits issued by DOB in the last 7 years.

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521 West 23rd 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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521 West 23rd 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 521 West 23rd Street

Housing Maintenance Code Complaints

This table shows complaints to 311 related to potential NYC Housing Maintenance Code (HMC) for 521 West 23rd 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
2025-05-072025-05-13Unsanitary Condition-PestsNon EmergencyCLOSE
2025-05-072025-05-13Paint/plaster-CeilingImmediate EmergencyCLOSE
2025-05-072025-05-13Unsanitary Condition-PestsNon EmergencyCLOSE
2025-04-022025-05-04Unsanitary Condition-MoldEmergencyCLOSE
2025-04-022025-05-04Unsanitary Condition-PestsNon EmergencyCLOSE
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Housing Maintenance Code Violations

This table shows violations of the NYC Housing Maintenance Code (HMC) issued by HPD for 521 West 23rd 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
2024-04-30BOpenNone9§ 27-2045 ADM CODE REPAIR OR REPLACE THE SMOKE DETECTOR DEFECTIVE IN THE ENTIRE APARTMENT LOCATED AT APT 9, 9th STORY, 1st APARTMENT FROM SOUTH AT WESTNone
2024-04-30COpenNone9§ 27-2070 ADM CODE PROVIDE AN ADEQUATE SUPPLY OF GAS TO THE FIXTURES AT RANGE IN THE KITCHEN LOCATED AT APT 9, 9th STORY, 1st APARTMENT FROM SOUTH AT WESTNone
2024-04-30BOpenNone9§ 27-2046.1 HMC: REPAIR OR REPLACE THE CARBON MONOXIDE DETECTING DEVICE(S). DEFECTIVE IN THE ENTIRE APARTMENT LOCATED AT APT 9, 9th STORY, 1st APARTMENT FROM SOUTH AT WESTNone
2024-04-30CCloseNoneNone§ 27-2005, 2007 ADM CODE REMOVE DEVICE PREVENTING DOOR FROM BEING SELF-CLOSING HOOK AND EYE AT VESTIBULE DOOR AT PUBLIC HALL, 1st STORY2024-05-13T00:00:00.000Z
2024-04-30CCloseNone9§ 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 HINGES IN THE ENTRANCE LOCATED AT APT 9, 9th STORY, 1st APARTMENT FROM SOUTH AT WESTNone
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311 Service Requests

Service requests made to 311 for 521 West 23rd Street. Data from NYC 311.

Created DateTypeDescriptionStatusAgencyResolution
2025-05-07 15:20UNSANITARY CONDITIONPESTSClosedHPD
2025-05-07 15:20PAINT/PLASTERCEILINGClosedHPD
2025-05-07 15:20UNSANITARY CONDITIONPESTSClosedHPD
2025-04-02 22:50UNSANITARY CONDITIONPESTSClosedHPD
2025-04-02 22:50UNSANITARY CONDITIONPESTSClosedHPD
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DOB Complaints

Department of Buildings complaints regarding 521 West 23rd Street.

Complaint #FiledStatusCategoryInspection DateDisposition
16806682024-10-26CLOSEDWork Without a Permit – Occupied Multiple Dwelling2024-10-28No Violation Warranted For Complaint At Time Of Inspection (2024-10-28)
16774972024-09-13CLOSEDCSE: Tracking Compliance2024-09-13No Violation Warranted For Complaint At Time Of Inspection (2024-09-13)
16645262024-04-05CLOSEDBoiler: Defective/Inoperative/No Permit2024-04-05Oath Violation Served (2024-04-05)
16509672023-10-14CLOSEDConstruction: Contrary/Beyond Approved Plans/Permits2023-11-09Please See Complaint Number (2023-11-09)
16462232023-08-22CLOSEDConstruction: Contrary/Beyond Approved Plans/Permits2023-11-06No Violation Warranted For Complaint At Time Of Inspection (2023-11-06)
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DOB Violations

Department of Buildings violations regarding 521 West 23rd Street.

Date IssuedCategoryDescriptionStatusComments
2022-02-03V-DOB VIOLATION - ACTIVECYCLE 9A UNSAFE REPORT FILED
2021-01-05V*-DOB VIOLATION - ResolvedDISMISSED BASED ON SUBSEQUENT REPORT SHOWING DEFECTS CORRECTED2022-12-16
2020-01-29V*-DOB VIOLATION - ResolvedDISMISSED BASED ON SUBSEQUENT REPORT SHOWING DEFECTS CORRECTED2022-12-16
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Indoor Environment Complaints (DOHMH)

The table below shows indoor environment complaints received regarding the conditions at 521 West 23rd 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 521 West 23rd 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
2024-12-180002023-11-012024-10-31
2024-10-180002022-11-012023-10-31
2023-12-010002022-11-012023-10-31
2022-12-210002021-11-012022-10-31
2022-03-230002020-11-012021-10-31
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Rodent Inspections

Recent rodent inspection results for 521 West 23rd Street. Data from NYC DOHMH.

DateTypeResult
2024-09-26InitialPassed
2023-08-17InitialPassed
2019-04-03InitialPassed
2018-07-03InitialPassed
2017-08-23InitialPassed
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HPD Litigation Explanation

The table below shows the HPD litigation records for 521 West 23rd 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 521 West 23rd 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 521 West 23rd Street. Data from ECB.

DateNumberRespondentDescriptionStatusPenaltyBalance Due
2024-04-0539110916KABC REALTYFOUND FEDERAL FST -100, WITH EXPOSED WIRING, OPENINGS ON CEILING AND WALLS, SAFETY RELEIF VALVE LABEL NOT LEGIBLE(1), OIL PUMP SET NOT TO RUN CONSTANT ONLY WHEN BOILER RUNS, ALSO MISSING BELT GUARD.ACTIVE3125.02815.0
2020-12-3035549300HARTISTS CONDOMINIUMFAILURE TO MAINTAIN EXTERIOR FACADE AND APPURTENANCES. SOUTH ELEVATIONEXPOSURE 1,OBSERVED CRACKS IN WATER TABLE ON 3RD FL,CRACKS IN MASONRY AT VARIOUS LOCATIONS IN CORNICE. EXPOSURE 2 WEST ELEVATION,OBSERVED CRRESOLVE1250.00.0
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Alternative Enforcement Program (AEP) Explanation

The table below shows the Alternative Enforcement Program (AEP) records for 521 West 23rd 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 521 West 23rd 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 521 West 23rd 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 521 West 23rd 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 521 West 23rd Street. Data includes sale date, price, buyer, and seller.

DatePriceBuyerSeller

Asbestos Records

Asbestos abatement filings and records for 521 West 23rd 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 521 West 23rd Street. Data includes connection type, date, and status.

MaterialRecord Type

Elevator Permits

Elevator permit records for 521 West 23rd Street. Data includes permit type, issue date, and status.

TypeIssue DateStatus

Landmark Violations

Landmark preservation violations for 521 West 23rd 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 521 West 23rd Street Compares

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