TAX_LOT_FACE: New York City Tax Lot Boundary Lines

Line-based spatial data representing the shape and location of Tax Lot Faces in New York City's Digital Tax Map. The dataset is extracted from the Department of Finance's internal system on the last Friday of each month and refreshed on ArcGIS Online on the 1st. It is provided by the City of New York for informational purposes and is not guaranteed to be accurate as of the current date.

Use Cases

• Map property boundaries for urban planning based on the line-based spatial data.
• Analyze lot shapes and adjacency for zoning studies based on the tax lot face geometry.
• Serve as a base layer for property information systems based on the official Digital Tax Map collection.
• Track changes to lot boundaries over time by referencing the Digital Alteration Book (DAB).

Strengths

• Data is updated monthly with a documented extraction and refresh schedule.
• Offers a reliability mechanism by alternating between Set A and Set B monthly releases.
• Part of an official city collection with a clear record of changes via the Digital Alteration Book (DAB).

Limitations

• Description metadata is limited; actual data quality requires manual inspection after download.
• Column-level documentation is absent; field semantics must be inferred after download.
• The disclaimer states the data may not reflect the latest changes in other City systems and is not guaranteed for accuracy.

Provenance

Source

City of New York, Department of Finance

Collection Method

Extracted from DOF’s internal system and published via ArcGIS Online Feature Servers.

Freshness

Updated monthly; last metadata update was 2026-03-22 03:59:17.594747.

Geography

New York City