New York City Property Tax Assessment Records

NYC property assessments determine tax liabilities and eligibility for exemptions. Data is entered by city employees including property assessors and exemption specialists. The dataset was last updated in May 2022.

Use Cases

• Predict property tax class (TXCL) from features like borough (BORO), block (AP_BLOCK), and lot (NEWLOT).
• Analyze the relationship between assessed value (NOAV, NEW_FV_L) and property characteristics such as building count (MBLDG) and land area (L_ACRE).
• Identify properties with active exemption status (STATUS1, STATUS2) based on exemption codes (EXMTCL) and application dates (AP_TIME).
• Model changes in assessed value over time using change dates (EX_CHGDT, DELCHG) and reference values (VALREF).
• Cluster properties by geographic region (GEO_RC, CP_DIST) and street name (STR_NAME) for spatial analysis of tax assessments.

Strengths

• Contains over 30 columns detailing property characteristics, assessments, and tax status.
• Data is sourced directly from New York City government systems and employees.

Limitations

• Sample size and total row count are unknown.
• Data may be stale, with the last update recorded over two years ago in 2022.
• Column names are abbreviated and lack descriptive context (e.g., NOAV, VALREF).

Provenance

Source

data.cityofnewyork.us

Collection Method

Collected and entered by various city employees including property assessors, exemption specialists, and via reporting systems like ACRIS and Department of Buildings.

Freshness

Last updated on 2022-05-09.

Geography

New York City properties.