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Building and Landlord Data Analysis Report

231 Sherman Avenue, Manhattan, NY 10034

3
DOB Complaints
179
311 Housing Calls
170
Housing Violations
1
Permits

Risk Assessment

31
High Risk

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

Our AI predicts there is a 31% chance of no major maintenance issues.
Augrented Insights Report for 231 Sherman Avenue

The 43-unit, 6-story residential building at 231 Sherman Avenue in Inwood, owned by Martin Scharf, has experienced multiple maintenance and safety issues throughout 2023-2025. Most recently, in May 2025, there were concerning reports of indoor air quality problems including chemical vapors, mold, and water leaks. The building has faced recurring heat and hot water issues, with complaints filed in January-March 2025, though inspectors were often unable to gain access for verification.

There are several open violations from a May 2024 inspection of apartment 5B, including issues with mice infestation, broken floors, ventilation problems, and water closet connections. Building systems have shown inconsistent maintenance, with complaints about ventilation systems in early 2025, and an active complaint about an allegedly illegal or improper vent/exhaust installation from April 2025. Historically, the building has dealt with various infrastructure challenges, including an elevator violation in 2018 and a boiler complaint in 2019, though both were ultimately resolved.

The property has undergone multiple rodent inspections between 2021-2025, with mixed results: most recent inspections in 2024-2025 passed, though there were failures noted in 2022. Bedbug reports from 2019-2024 show minimal activity, with only one infested unit reported in 2017-2018. The building's maintenance history shows some pattern of unaddressed violations, as evidenced by multiple service requests in 2025, suggesting ongoing challenges with responsiveness to maintenance issues.

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.

231 Sherman Avenue Report Contents

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231 Sherman Avenue Building Overview

Renter Risk Rating

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

Building Characteristics

Total units 43
Year built 1925
Total area 47262 sq ft
Floors 6
Tax Abatements None
Building Class HEREAFTER ERECTED CLASS A
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Key Building Statistics

3
DOB Complaints
Complaints filed with the Department of Buildings in the last 7 years.
170
Housing Violations
Class B & C housing maintenance code violations.
179
311 Housing Calls
Housing-related 311 service requests in the last 7 years.
2
Work Orders
Repair orders issued by city agencies.
1
ECB Violations
Environmental Control Board violations on record.
0
Evictions
Evictions executed by city marshalls.
21
Rodent Inspections
Rodent inspections conducted by DOHMH.
1
Building Permits
Permits issued by DOB in the last 7 years.

Included Addresses

  • 223 Sherman Ave, New York, NY 10034
  • 225 Sherman Ave, New York, NY 10034
  • 227 Sherman Ave, New York, NY 10034
  • 229 Sherman Ave, New York, NY 10034
  • 531 West 207th St, New York, NY 10034
  • 533 West 207th St, New York, NY 10034
  • 535 West 207th St, New York, NY 10034
  • 537 West 207th St, New York, NY 10034
  • 539 West 207th St, New York, NY 10034
  • 541 West 207th St, New York, NY 10034

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231 Sherman Avenue 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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231 Sherman Avenue 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 231 Sherman Avenue

Housing Maintenance Code Complaints

This table shows complaints to 311 related to potential NYC Housing Maintenance Code (HMC) for 231 Sherman Avenue. 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
2025-03-202025-06-03Door/window-DoorNon EmergencyCLOSE
2025-03-202025-06-03Unsanitary Condition-Garbage/recycling StorageNon EmergencyCLOSE
2025-03-202025-06-03Unsanitary Condition-PestsNon EmergencyCLOSE
2025-04-142025-06-03General-Ventilation SystemNon EmergencyCLOSE
2025-03-202025-06-03Unsanitary Condition-Garbage/recycling StorageNon EmergencyCLOSE
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Housing Maintenance Code Violations

This table shows violations of the NYC Housing Maintenance Code (HMC) issued by HPD for 231 Sherman Avenue. 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
2024-05-05BOpenNone5B§ 27-2005 ADM CODE PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE WOOD FLOOR IN THE KITCHEN LOCATED AT APT 5B, 5th STORY, 1st APARTMENT FROM EAST AT SOUTHNone
2024-05-05AOpenNone5B§ 27-2026 ADM CODE RESET, SO AS TO SECURE A PROPER AND TIGHT CONNECTION, THE WATER CLOSET BOWL ..... IN THE BATHROOM LOCATED AT APT 5B, 5th STORY, 1st APARTMENT FROM EAST AT SOUTHNone
2024-05-05BOpenNone5B§ 27-2005 ADM CODE REPLACE WITH NEW THE MISSING WOOD DOORS AT BOTTOM BASE CABINET AT SINK IN THE KITCHEN LOCATED AT APT 5B, 5th STORY, 1st APARTMENT FROM EAST AT SOUTHNone
2024-05-05BOpenNone5B§ 27-2005 ADM CODE REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR AT WEST WALL IN THE KITCHEN LOCATED AT APT 5B, 5th STORY, 1st APARTMENT FROM EAST AT SOUTHNone
2024-05-05COpenNone5BHMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF ROACHES IN THE ENTIRE APARTMENT LOCATED AT APT 5B, 5th STORY, 1st APARTMENT FROM EAST AT SOUTHNone
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311 Service Requests

Service requests made to 311 for 231 Sherman Avenue. Data from NYC 311.

Created DateTypeDescriptionStatusAgencyResolution
2025-05-13 09:24Indoor Air QualityChemical Vapors/Gases/OdorsClosedDOHMH
2025-05-08 23:37UNSANITARY CONDITIONMOLDClosedHPD
2025-05-08 23:37PLUMBINGBATHTUB/SHOWERClosedHPD
2025-05-08 23:37WATER LEAKDAMP SPOTClosedHPD
2025-04-14 11:42GENERALVENTILATION SYSTEMClosedHPD
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DOB Complaints

Department of Buildings complaints regarding 231 Sherman Avenue.

Complaint #FiledStatusCategoryInspection DateDisposition
16931612025-04-14ACTIVEVent/Exhaust – Illegal/Improper
16920592025-03-28CLOSEDEnforcement Work Order (DOB)2025-03-31Please See Complaint Number (2025-03-31)
16883062025-02-10CLOSEDBuilding Shaking/Vibrating/Struct Stability Affected2025-02-10Oath Violation Served (2025-02-10)
16136352022-07-08CLOSEDConstruction: Contrary/Beyond Approved Plans/Permits2022-07-14Complaint Referred To Department Of Transportation (dot) (2022-07-14)
14997232019-01-22CLOSEDBoiler: Defective/Inoperative/No Permit2019-01-23No Violation Warranted For Complaint At Time Of Inspection (2019-01-23)
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DOB Violations

Department of Buildings violations regarding 231 Sherman Avenue.

Date IssuedCategoryDescriptionStatusComments
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Indoor Environment Complaints (DOHMH)

The table below shows indoor environment complaints received regarding the conditions at 231 Sherman Avenue. 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 231 Sherman Avenue. 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
2024-12-020002023-11-012024-10-31
2023-12-010002022-11-012023-10-31
2022-12-010002021-11-012022-10-31
2021-12-070002020-11-012021-10-31
2020-12-080002019-11-012020-10-31
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Rodent Inspections

Recent rodent inspection results for 231 Sherman Avenue. Data from NYC DOHMH.

DateTypeResult
2025-04-01InitialPassed
2024-11-21CompliancePassed
2024-08-30InitialFailed for Other R
2023-08-29InitialPassed
2023-01-13ComplianceRat Activity
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HPD Litigation Explanation

The table below shows the HPD litigation records for 231 Sherman Avenue. 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 231 Sherman Avenue. 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 231 Sherman Avenue. Data from ECB.

DateNumberRespondentDescriptionStatusPenaltyBalance Due
2018-11-0738266257KSHERMAN REALTY LLC10J1,71M7,5A10. 10J1-CAR DOOR ON RETURN POST TOO MUCH GAP MISALIGNED ADJUST; 71M7-PIT LIGHT MISSING PROVIDE; 5A10-CAR DOOR RESTRICTOR TAPE AROUND BOX WITH BLACK ELECTRICAL SO PIN CANNOT DROP.CEASE USE ITEM DOORRESOLVE1250.00.0
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Alternative Enforcement Program (AEP) Explanation

The table below shows the Alternative Enforcement Program (AEP) records for 231 Sherman Avenue. 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 231 Sherman Avenue. 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 231 Sherman Avenue. 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 231 Sherman Avenue. 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 231 Sherman Avenue. Data includes sale date, price, buyer, and seller.

DatePriceBuyerSeller

Asbestos Records

Asbestos abatement filings and records for 231 Sherman Avenue. 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 231 Sherman Avenue. Data includes connection type, date, and status.

MaterialRecord Type

Elevator Permits

Elevator permit records for 231 Sherman Avenue. Data includes permit type, issue date, and status.

TypeIssue DateStatus

Landmark Violations

Landmark preservation violations for 231 Sherman Avenue. 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 231 Sherman Avenue Compares

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