In this video I look at using geoparquet to download buildings and building heights using QGIS.
Find the GBA (Global Building Atlas) paper here: https://mediatum.ub.tum.de/1782307
Find Mark Litwintschik's excellent blog here: https://tech.marksblogg.com/building-footprints-gba.html
The S3 link to use with geoparquet downloader is: s3://us-west-2.opendata.source.coop/tge-labs/globalbuildingatlas-lod1/*.parquet
The expression for the 2.5D building style is: min("height", 1) / 50000
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