3D Buildings - Citywide

These 3D building shapes are derived from full surface LiDAR by creating roof surface outlines. Exterior walls are projected from the outer edges of the roof outlines to just below the ground surface. The open dataset is not strictly 3D. To download 3D buildings data in Multipatch GDB format (0.35 GB), click <a href="https://data.calgary.ca/api/views/cchr-krqg/files/33eaa584-0e5f-4c70-a093-b222d3077a2f?download=true&filename=Buildings_3D.gdb.zip">zipped geodatabase attachment file</a>, or for 3D buildings in CAD file format (1.17 GB), click <a href="https://data.calgary.ca/api/views/cchr-krqg/files/2ddfb570-5e60-4f26-aa07-aae30391a205?download=true&filename=Buildings.dwg.zip">zipped Autocad file</a>.

The projection is NAD83 Alberta 3TM 114W (EPSG:3776).

Querying over HTTP

Splitgraph serves as an HTTP API that lets you run SQL queries directly on this data to power Web applications. For example:

curl https://data.splitgraph.com/sql/query/ddn \
    -H "Content-Type: application/json" \
    -d@-<<EOF
{"sql": "
    SELECT *
    FROM \"calgary-ca/3d-buildings-citywide-cchr-krqg\".\"3d_buildings_citywide\"
    LIMIT 100 
"}
EOF

See the Splitgraph documentation for more information.