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:

Matched building diagram

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
In this section