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Building and Landlord Data Analysis Report

521 Isham Street, Manhattan, NY 10034

8
DOB Complaints
175
311 Housing Calls
91
Housing Violations
1
Permits

Risk Assessment

35
Moderate Risk

This building shows some maintenance concerns that warrant attention.

Our AI predicts there is a 35% chance of no major maintenance issues.
Augrented Insights Report for 521 Isham Street

521 Isham Street is a 6-story, 60-unit residential building constructed in 1930, currently owned by Barry Rudofsky. The building has experienced persistent heating and hot water issues throughout 2024-2025, with multiple complaints filed for building-wide problems that HPD was unable to inspect due to access issues. These complaints occurred in January 2025 and continued from December 2024 through January 2025. The building also faced substantial plumbing issues in December 2024, with multiple complaints related to bathtubs/showers, and various maintenance concerns including ceiling paint/plaster problems.

The property has a concerning history of rodent activity, with multiple inspections between 2021-2025 showing "Rat Activity" results in 2023, 2024, and early 2025. While there were no bedbug infestations reported in 2023-2024, the building has experienced multiple pest control issues in recent years. The building underwent facade repairs in 2018-2019, during which time several safety violations were recorded related to construction safety, including issues with suspended scaffolding and worker safety. These violations were eventually resolved, though there were some administrative compliance issues with certification periods.

The property has maintained active compliance with bedbug reporting protocols, showing no infestations in the most recent three reporting periods (2023-2024). Recent inspections have shown a mix of compliance and activity regarding rodent control, with the most recent inspection in April 2025 passing, though March 2025 showed rat activity. The building's heating and water systems have been a recurring concern, with multiple complaints logged and HPD inspections unable to gain access for verification. The property has also seen various maintenance issues addressed through HPD complaints, including problems with ceilings, walls, and general maintenance items.

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 Isham Street Report Contents

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521 Isham Street Building Overview

Renter Risk Rating

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

Building Characteristics

Total units 60
Year built 1930
Total area 40003 sq ft
Floors 6
Tax Abatements None
Building Class NEW LAW TENEMENT
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Key Building Statistics

8
DOB Complaints
Complaints filed with the Department of Buildings in the last 7 years.
91
Housing Violations
Class B & C housing maintenance code violations.
175
311 Housing Calls
Housing-related 311 service requests in the last 7 years.
3
Work Orders
Repair orders issued by city agencies.
17
ECB Violations
Environmental Control Board violations on record.
1
Evictions
Evictions executed by city marshalls.
11
Rodent Inspections
Rodent inspections conducted by DOHMH.
1
Building Permits
Permits issued by DOB in the last 7 years.

Included Addresses

  • 521 Isham St, New York, NY 10034
  • 523 Isham St, New York, NY 10034
  • 525 Isham St, New York, NY 10034
  • 527 Isham St, New York, NY 10034
  • 264 Sherman Ave, New York, NY 10034
  • 266 Sherman Ave, New York, NY 10034
  • 268 Sherman Ave, New York, NY 10034

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521 Isham 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 Isham 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 521 Isham Street

Housing Maintenance Code Complaints

This table shows complaints to 311 related to potential NYC Housing Maintenance Code (HMC) for 521 Isham 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
2024-12-162025-07-20Heat/hot Water-Apartment OnlyEmergencyCLOSE
2024-12-162025-07-20Paint/plaster-CeilingImmediate EmergencyCLOSE
2024-12-162025-07-20Plumbing-Bathtub/showerEmergencyCLOSE
2024-12-162025-07-20Plumbing-Bathtub/showerEmergencyCLOSE
2025-06-162025-06-19Paint/plaster-WallNon 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 Isham 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
2024-01-19CCloseNone2GHMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT 2G, 2nd STORY, 1st APARTMENT FROM EAST AT SOUTH2024-02-21T00:00:00.000Z
2023-01-28BCloseNone1G§ 27-2026, 2027 HMC: PROPERLY REPAIR THE SOURCE AND ABATE THE EVIDENCE OF A WATER LEAK AT CEILING IN THE BATHROOM LOCATED AT APT 1G, 1st STORY, 1st APARTMENT FROM EAST AT SOUTH2023-02-09T00:00:00.000Z
2023-01-28BCloseNone1G§ 27-2005 ADM CODE REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR AT CEILING AND SOUTH WALL IN THE BATHROOM LOCATED AT APT 1G, 1st STORY, 1st APARTMENT FROM EAST AT SOUTH2023-02-09T00:00:00.000Z
2023-01-28COpenNone1GHMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF ROACHES IN THE ENTIRE APARTMENT LOCATED AT APT 1G, 1st STORY, 1st APARTMENT FROM EAST AT SOUTHNone
2023-01-28BCloseNone1G§ 27-2005 ADM CODE REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR THE NORTH WALL IN THE 3rd ROOM FROM NORTH LOCATED AT APT 1G, 1st STORY, 1st APARTMENT FROM EAST AT SOUTH2023-02-09T00:00:00.000Z
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311 Service Requests

Service requests made to 311 for 521 Isham Street. Data from NYC 311.

Created DateTypeDescriptionStatusAgencyResolution
2025-01-23 21:36HEAT/HOT WATERENTIRE BUILDINGClosedHPD
2025-01-20 23:38HEAT/HOT WATERENTIRE BUILDINGClosedHPD
2025-01-14 19:06HEAT/HOT WATERENTIRE BUILDINGClosedHPD
2025-01-07 00:39HEAT/HOT WATERENTIRE BUILDINGClosedHPD
2024-12-16 21:35PLUMBINGBATHTUB/SHOWERClosedHPD
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DOB Complaints

Department of Buildings complaints regarding 521 Isham Street.

Complaint #FiledStatusCategoryInspection DateDisposition
15659082021-03-04CLOSEDConstruction Enforcement Work Order (DOB)2021-03-04Partial Stop Work Order (2021-03-05)
15149742019-07-03CLOSEDIllegal Activity2019-07-03No Violation Warranted For Complaint At Time Of Inspection (2019-07-03)
15116842019-05-31CLOSEDConstruction Safety Compliance (CSC) Action2019-06-06Stop Work Order Fully Rescinded (2019-06-07)
15106892019-05-19CLOSEDSidewalk Shed/Supported Scaffold/Inadequate/Defect/NONE/NO PMT/NO CERT2019-05-22No Violation Warranted For Complaint At Time Of Inspection (2019-05-23)
15089842019-04-30CLOSEDSidewalk Shed/Supported Scaffold/Inadequate/Defect/NONE/NO PMT/NO CERT2019-05-07Stop Work Order Fully Rescinded (2019-05-08)
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DOB Violations

Department of Buildings violations regarding 521 Isham Street.

Date IssuedCategoryDescriptionStatusComments
2021-03-04V-DOB VIOLATION - ACTIVETHE BOROUGH COMMISSIONER HAS ISSUED A STOP WORK ORDER FOR APPLICATION #121290511 DUE TO REVOCATION OF APPROVAL AND PERMIT UNABLE TO DETERMINE PERCENTAGE OF WORK COMPLETED DUE TO GROUNG FLOOR COMMERCIAL SPACE BEING CLOSED REMEDY: PROVIDE ALL REQUIRED PAPERWORK TO BORO. COMM. OFFICE IMMEDIATL
2019-06-26V*-DOB VIOLATION - DISMISSEDFAILURE TO CERTIFY CORRECTION ON IMMEDIATELY HAZARDOUS (CLASS 1) ECB VIOLATIONECB DISMISSED2019-08-02
2019-01-23V*-DOB VIOLATION - DISMISSEDFAILURE TO CERTIFY CORRECTION ON IMMEDIATELY HAZARDOUS (CLASS 1) ECB VIOLATIONECB DISMISSED2019-02-15
2019-01-09V*-DOB VIOLATION - DISMISSEDFAILURE TO CERTIFY CORRECTION ON IMMEDIATELY HAZARDOUS (CLASS 1) ECB VIOLATIONECB DISMISSED2019-05-24
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Indoor Environment Complaints (DOHMH)

The table below shows indoor environment complaints received regarding the conditions at 521 Isham 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 Isham 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
2024-12-160002023-11-012024-10-31
2024-11-080002022-11-012023-10-31
2023-12-060002022-11-012023-10-31
2022-12-280002021-11-012022-10-31
2022-11-160002020-11-012021-10-31
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Rodent Inspections

Recent rodent inspection results for 521 Isham Street. Data from NYC DOHMH.

DateTypeResult
2025-04-25CompliancePassed
2025-03-28InitialRat Activity
2024-08-23InitialPassed
2023-11-09ComplianceRat Activity
2023-08-29InitialRat Activity
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HPD Litigation Explanation

The table below shows the HPD litigation records for 521 Isham 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 Isham 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 Isham Street. Data from ECB.

DateNumberRespondentDescriptionStatusPenaltyBalance Due
2019-05-3035431877ZRAGHBIR SINGHSEC. 3314.4.5.4 TRAINING/OR SUSPENDED SCAFFOLD INDIVIDUAL WHO REPAIR MAINTAIN INSTALLED REMOVE SUSPENDED SCAFFOLD SHALL AT LEAST COMPLETED A DOB APPROVED COURSE THAT IS AT LEAST 16HRS LONG. NOTE: AT TIME OF INSRESOLVE625.00.0
2019-05-3035431920PRAGHBIR SINGHSEC. 3314.10.1 PARTIAL STOP WORK ORDER FOR SUSPENDED SCAFFOLD & FACADEWORK PURSUANT TO 28-207.2 & POSTED AT PREMISES.(VERTICAL/PARALLEL TO WALL)NOTE: AT TIME OF INSPECTION I OBSERVED TIE BACK & P¢ARAPET CLAMPSRESOLVE625.00.0
2019-05-3035431921RRAGHBIR SINGHFAILURE TO PROTECT LIFELINES FROM SHARP EDGES & ABRASION CAUSING A HAZARDOUS CONDITION FOR WORKERS ON SUSPENDED SCAFFOLDS. NOTE: AT TIME OF INSPECTION I OBSERVED AT A 6 STY BLDG ALT-3 WORK IN PROGRESS I OBSERVERESOLVE625.00.0
2019-05-3035431922ZRAGHBIR SINGHSEC. 3314.4.3.1.1 PARTIAL STOP WORK ORDER FOR SUSPENDED SCAFFOLD & ALLFACADE WORK PURSUANT TO 28-207.2 & POSTED AT PREMISES. FAILURE TO PROVIDED HAVE IN PLACE SPECIAL PROVISION FOR PARAPET CLAMPS. NOTE: AT TIMERESOLVE625.00.0
2019-05-3035431923KRAGHBIR SINGHSEC. 3314.10.10 SUPPORT DEVICES FAILURE TO PROVIDE SUPPORT FOR C HOOKS ROPE IN PLACE. NOTE: AT TIME OF INSPECTION I OBSERVED C HOOKS ROPE IN PLACE W/NO BEARING BLOCKS IN PLACE WHICH SHALL BE IN PLACE TO SECURERESOLVE625.00.0
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Alternative Enforcement Program (AEP) Explanation

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

DatePriceBuyerSeller

Asbestos Records

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

MaterialRecord Type

Elevator Permits

Elevator permit records for 521 Isham Street. Data includes permit type, issue date, and status.

TypeIssue DateStatus

Landmark Violations

Landmark preservation violations for 521 Isham 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 Isham Street Compares

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