TECH Signal 133
Interactive map plots every Los Angeles building by decade built from 1880 to 2026
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Illustration only Photo by Ev on Unsplash
An interactive visualization uses LARIAC and assessor data to show each LA structure colored by its construction decade.
For engineers working with geospatial data, this tool demonstrates a clear way to present large-scale building history. It also highlights the value of combining public datasets like LARIAC outlines and assessor rolls for urban analysis.
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The map covers every building in Los Angeles from 1880 to 2026.
Each structure is colored by the decade it was built, with heights exaggerated when zoomed out.
Data sources are LARIAC 2020 building outlines and the LA County Assessor roll.
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