City of New York

Property Assessment Actions

The New York City Tax Commission's decisions on applications for reducing property assessments or reclassifying property are documented here. Each record includes the assessment year, borough (indicated by a numerical code), and tax class.

Example records
Namelegal entityStreet AddressaddressFull Namelegal entityFull AddressaddressBorough CodegeographicBlock NumbergeographicLot NumbergeographicTax YeartemporalGranted Reduction AmountfinancialTax Class Codeclassification
446 West 54th Street, LLC446 WEST 54 STREET446 West 54th Street, LLC446 WEST 54 STREET110635520241015004
12 Warren Street Condomin12 WARREN STREET12 Warren Street Condomin12 WARREN STREET113518012024322192
FULTON 63 LLC3337 FULTON STREETFULTON 63 LLC3337 FULTON STREET34130632024294004
Use cases

Commercial Real Estate Underwriting Signal

A commercial mortgage underwriter reviewing a loan application on a NYC property checks whether the owner has a history of successfully appealing assessments, which may indicate the property was over-assessed and that the true market value or tax burden differs from public records.

NameFull AddressGranted Reduction AmountTax YearTax Class Code

KYB Entity Footprint Mapping

A fintech platform onboarding a commercial real estate LLC cross-references the applicant entity name against Tax Commission decisions to surface properties the business controls, building a more complete picture of its asset base beyond what appears in state registration filings.

NameFull AddressBorough CodeBlock NumberLot Number

Property Tax Liability Normalization for Insurance Pricing

A commercial property insurer adjusting premiums for a portfolio of NYC buildings pulls granted reduction amounts to recalibrate the effective tax burden on each parcel, since assessed value reductions affect net operating income projections used in replacement cost and liability models.

Full AddressGranted Reduction AmountTax YearTax Class CodeBorough Code
Related datasets
Real Property Transactions of Local Development CorporationsState of New YorkActive Real Estate Salespersons and BrokersState of New YorkDOB Permit IssuanceCity of New YorkLicensed Real Estate Appraisal Management CompaniesState of New YorkCity Council Discretionary FundingCity of New YorkConstruction and Demolition RegistrantsCity of New YorkBusiness Integrity Commission ViolationsLicensed Real Estate AppraisersState of New YorkBusiness Improvement DistrictsCity of New YorkLicense ApplicationsCity of New YorkDOB Job Application FilingsCity of New YorkElectric Consumption and CostCity of New YorkConsumer and Worker Protection InspectionsCity of New YorkNewsrack InspectionsCity of New YorkDesignated and Calendared Buildings and SitesCity of New YorkActive NYC Health Code Regulated Child Care ProgramsCity of New YorkRecoupment for Damaged City-owned PropertyCity of New YorkDepartment of Consumer and Worker Protection Archived ChargesHazard Mitigation ActionsCity of New YorkDraft State Facility PermitsState of New York