Building Elevation and Subgrade (BES)

bsin-59hvCity Government30 columns

The Building Elevation and Subgrade data contains New York City building centroids derived from the Department of Building's (DOB) February 26th, 2022 building footprint dataset. Each record contains a grade and first floor measurement for each building (recorded as feet above sea-level in the NADV88 vertical datum) and indicates if subgrade space exists. DCP contracted with an external data vendor to generate a single point, or centroid, that represented the location of the center of every building recorded in the DOB dataset. The dataset excluded the footprints of small accessory buildings such as sheds. Each row within the dataset represents one building centroid, and records the X and Y coordinates of that centroid in the NAD 1983 coordinate system.

View on NYC Open Data

Quality

C74.2 / 100

From a 500-row sample across 30 columns.

completeness95/ 25% weight

consistency67/ 20% weight

accuracy95/ 20% weight

timeliness1/ 15% weight

usability90/ 20% weight

· No obvious temporal column — limits time-series joins
· Has coordinates — directly mappable, and joinable to other NYC datasets

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Geography

Mappable — Socrata point column `the_geom`.

Open on the map →

Sample rows

the_geom	bin	bbl	borough	block	lot	z_grade	z_floor	subgrade	notes1	x	y
40.54910, -74.21590	5117231.0	5070487502	5	7048	150	65.472	67.204	N	Property was Successfully Measured	924250.65542	139404.1051
40.63085, -74.14989	5093502.0	5011720224

Columns

26 queryable · 26 profiled

The machine field names SoQL needs, with the publisher's own description of each.

Field	Type	Description	Null	Values
`the_geom`	coordinate	Geometry type	0%	`{'coordinates': [-74.000…{'coordinates': [-74.001…{'coordinates': [-74.001…`
`bin`	integer	The building identification number - a unique identifier for every building in New York City, assigned by the Department of Buildings. First digit is the boro code, followed by six digit unique ID.	0%	`1000004.01000005.01000006.0`
`bbl`	text	The borough, block, lot identifier based on the 22v1 DOB building footprint dataset. An identifier for the tax lot that the building centroid is located on.	0%	`503024750120514101204076320002`
`borough`	categorical

Query this from your own app

GET /api/datasets/bsin-59hv
GET /api/datasets/bsin-59hv/quality
GET /api/datasets/bsin-59hv/related
GET /api/columns?dataset=bsin-59hv