Tax Blocks - mattyschell/nyc-spatial-rolodex GitHub Wiki

The Department of Finance publishes tax blocks on the Property Information Portal. To support the Property Information Portal the Department of Finance publishes a tax block service on the NYCMaps ArcGIS Online organization. The Department of Finance also publishes these blocks in some form on the NYC Open Data Portal.

See Tax-Map for more background.

Tax Lots nest within Tax Blocks.

NYCMaps ArcGIS Online

This is what you want.

Tax block service updated monthly (stable)

Tax block service updated daily