Description
"Portland, Oregon: The Age of a City" by Justin Palmer, showing the age of 544,033 buildings in the city of Portland through color-coded maps. The interactive visualization reveals historical layers of urban development by mapping building construction dates, with colors ranging from dark (oldest buildings) to bright (newest construction). Users can zoom into neighborhoods to see individual structures and their build years. Data sourced from the City of Portland. It was part of a broader trend of "building age maps" that spread to cities worldwide, including similar projects for New York, Amsterdam, and Brooklyn.
