NYC Environmental Designations for Tax Lots

E-Designations data from New York City's Department of City Planning identifies tax lots with environmental requirements related to hazardous materials, air emissions, or noise. It includes CEQR (City Environmental Quality Review) requirements and restrictive declarations as per the Zoning Resolution. The dataset was last updated by data.cityofnewyork.us in November 2025.

Use Cases

• Identify properties with HAZMAT_CODE or AIR_CODE to map potential contamination or air quality concerns for due diligence.
• Analyze temporal trends in environmental designations using E_EFFECTIVE_DATE, HAZMAT_DATE, and NOISE_DATE.
• Cross-reference property parcels using BBL (Borough-Block-Lot), TAXBLOCK, and TAXLOT with other city planning datasets.
• Filter records by BOROCODE and ZONING_MAP to study the geographic distribution of environmental requirements.
• Review the DESCRIPTION field and CEQR_NUM to understand the specific regulatory context for a designated lot.

Strengths

• Contains multiple environmental hazard categories (HAZMAT_CODE, AIR_CODE, NOISE_CODE) for detailed analysis.
• Includes key property identifiers like BBL and TAXLOT for joining with other NYC spatial datasets.
• Provides temporal data points (E_EFFECTIVE_DATE, HAZMAT_DATE) to track designation history.

Limitations

• Sample size and total row count are unknown, making it difficult to assess statistical significance.
• Data completeness for fields like ULURP_NUM, CEQR_NUM, and specific date columns is not verified.

Provenance

Source

New York City Department of City Planning, published via the NYC Open Data portal (data.cityofnewyork.us).

Collection Method

Compiled as part of the City Environmental Quality Review (CEQR) process and Zoning Resolution documentation.

Time Range

null

Freshness

Updated November 2025, indicating recent maintenance.

Geography

New York City, USA, identifiable by BOROCODE and property lot identifiers.