NYC Property Valuation and Assessment Data for Tax Classes 1-4

Property Valuation and Assessment Data Tax Classes 1,2,3,4 is a dataset from the City of New York representing property assessments for calculating property tax and granting eligible exemptions or abatements. Data is collected by various city employees including Property Assessors and Exemption specialists. Columns suggest detailed information on tax classes, market and assessed land values, building characteristics, and protest status.

Use Cases

• Analyzing current and prior year tax classifications using CURTAXCLASS and PYTAXCLASS
• Comparing market and assessed land values for properties using PYMKTLAND, FINACTLAND, and FINTRNLAND
• Examining building characteristics and unit counts via BLDG_CLASS, YRBUILT, and UNITS
• Investigating tax assessment protests and appeals using PROTEST_1 and VALREF
• Identifying condo units and loft areas with CONDO_Number and LOFT_AREA_GROSS

Strengths

• Dataset is maintained by the City of New York, an authoritative municipal source
• Columns provide a detailed breakdown of property tax assessment components
• The dataset appears on multiple platforms (Socrata and Data.gov), indicating its importance and use

Limitations

• Key metadata such as row count, size, and license are missing from all sources
• There is a conflict in the 'last updated' date between Socrata entries (2026-03-15 vs 2026-03-09)
• The Data.gov entry lacks column information, limiting understanding of its structure

Provenance

Source

City of New York

Collection Method

Data collected and entered by various City employees, including Property Assessors, Property Exemption specialists, ACRIS reporting, and Department of Building reporting.

Freshness

2026-03-15 02:47:12.828680

Geography

New York City