Matched Building Footprints Schema

With the Matched Building Footprints Add-on, you get our nationwide parcel data with premium schema attributes, plus buildings data that follows this schema.

Regrid Matched Building Footprints

This file contains the building shapes plus associated attributes. An additional join file, described below, includes the building to parcel matches.

Field	Description	Datatype	Example
ed_str_uuid	Universally Unique ID of the entire structure	text	460ec73d-a847-11eb-b9dd-a0369f4d4bda
ed_bld_uuid	Universal Unique ID of the building extracted from the structure	text	f51e780a-9f4e-11eb-8ac7-d89d67c66f28
ed_geoid	County FIPS code	text	01001
ed_largest	An indicator of the largest building on a parcel	numeric	1 or NULL
ed_lat	Latitude of a point in the shape, typically the centroid	numeric	25.798749
ed_lon	Longitude of a point in the shape, typically the centroid	numeric	-80.339941
ed_bldg_footprint_sqft	Building footprint area in square feet	numeric	24052
ed_source	Source of the building footprint	text	Aerial Imagery
ed_source_date	Date of the building source imagery formatted as MM/DD/YYYY	text	11/26/2020
wkt	Building geometry in Well Known Text (wkt) format	text	POLYGON((-122.9279 40.7133, -122.9287 40.7136, -122.9287 40.7135, -122.9291 40.7131, -122.9279 40.7133))

Matched Building Footprints With Heights

This product includes all of the building footprint attributes above, and adds the following:

Field	Description	Datatype	Example
ed_max_height	Maximum height of the structure in ft, excluding potential clutter like an antenna, overhanging tree, etc	numeric	12
ed_mean_height	Mean height of the structure in feet	numeric	11.25
ed_max_object_height	Maximum height of the structure in ft, including potential clutter like an antenna, overhanging tree, etc	numeric	27.6
ed_lag	Lowest Adjacent Grade, lowest observed ground elevation above sea level around the boundary of the building	numeric	662.18
ed_hag	Highest Adjacent Grade, highest observed ground elevation above sea level around the boundary of the building	numeric	663.59
ed_mean_elevation	Mean ground elevation in ft under the structure footprint	numeric	662.64
ed_mean_slope	Mean roof slope	integer	7
ed_stories	Estimated number of stories based on building height	integer	7
ed_gross_area	Estimated area of the building based on stories and square footage of the polygon	numeric	2089.448
ed_volume	Volume of the building based on square footage and the mean height of the polygon in cubic feet	numeric	23506.29

Regrid Matched Building Footprints Join File

This flat file joins building IDs to parcel IDs per county. This diagram shows the buildings join file can be used to match parcels by ll_uuid to buildings by ed_bld_uuid:

Field	Description	Datatype	Example
ll_uuid	Uniquely identifies a single parcel	uuid	03e304ad-4d2c-451e-ac90-0d9aa0b46dc0
ed_str_uuid	Universally Unique ID of the entire structure	text	460ec73d-a847-11eb-b9dd-a0369f4d4bda
ed_bld_uuid	Universal Unique ID of the building extracted from the structure	text	f51e780a-9f4e-11eb-8ac7-d89d67c66f28
geoid	County FIPS code	text	01001