The purpose of the project is to
verify that the Building Identification Numbers assigned by the New York
City Department of Finance are correctly associated with their respective
buildings within the NYCMap database. The verification process is achieved
by compiling the city’s spatial data including ortho-photographs,
Cogis tax lot maps, Sanborn fire safety maps, building polygons, Geosupport
Online Address Translator, and the Dept. of Finance Emergency Response
System, to make a comparison and confirm that the BIN is correctly assigned.
- All of the data for this project except for GOAT and DOFERS are
featured within NYCMap and can be overlaid and viewed simultaneously.
- GIS layers from NYCMap:
The data from the GIS layers used includes buildings (footprint), hydrology,
street centerline, curb, transportation structures (bridges, tunnels,
etc), transportation lines (boardwalks, driveways, etc), railroad line,
railroad structure, subway line, and subway stations.
A first set of aerial photos was taken in1996 and has a resolution of
12 inches covering the complete city. A second set was taken in 2001
and has a resolution of 9 inches.
- Cogis tax lots:
Featured within NYCMap the Cogis layer contains all of the city’s
property tax lots and can be queried for a lots BBL number (Borough
Block and Lot number) as well as a buildings address according to the
Department of Finance. Data prepared by the New York City Department
- Sanborn fire safety maps:
The Sanborn maps are a raster dataset, which consists of scanned images
of the city’s property lots, buildings, and streets. Made for
fire insurance purposes Sanborn maps are referenced for a buildings
address number as well as to view features of the buildings internal
- City Data Base:
GOAT (Geosupport Online Address Translator) provides the BIN associated
with a building’s respective borough block and lot as well as
PACS (Dept. of Finance Emergency Response System) provides building
dimensions, year built, number of apartments and the number of buildings.
Green buildings – BIN has been verified.
Light blue buildings - Have had BIN’s
attributed to them, but have yet to be verified.
Dark blue buildings - Have yet to have a BIN
attributed to them.
Orange buildings - Designates that there is
some problem left unmitigated.
Fusia buildings - Designates a building that
is lacking a BBL.