Researchers at the Technical University of Munich have just completed something that sounds simple until you think about it: they've mapped every building on the planet in 3D.
GlobalBuildingAtlas contains 2.75 billion structures, each one rendered with enough precision to see not just where a building sits, but how tall it is and how much space it takes up. The resolution is 9.8 by 9.8 feet — about 30 times finer than any previous global building dataset.
Why this matters more than it sounds
A 2D map tells you a building exists. A 3D map tells you something about the people inside it. "3D building information provides a much more accurate picture of urbanization and poverty than traditional 2D maps," says Xiaoxiang Zhu, who led the project. When you can measure the actual volume of housing in a neighborhood, you start to see inequality that flat maps hide. A dense cluster of small buildings tells a different story than sprawling single-family homes covering the same footprint.
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Start Your News DetoxThe team developed a new metric called "building volume per capita" to measure this. Instead of just counting heads per square kilometer, you can now ask: how much enclosed space does each person actually have? It's the kind of number that matters for understanding living conditions, planning infrastructure, and designing cities that don't just grow — but grow fairly.
The atlas is open-source, which means urban planners in Lagos, Jakarta, and Lima can use the same data as planners in London or Tokyo. About 97% of the buildings are classified as Level of Detail 1, meaning the rough shape and height are accurate enough to feed into computer models for everything from climate simulations to disaster preparedness.
The current dataset is based on 2019 satellite imagery, but because it's open-access, it can be updated as new data comes in. That's the kind of infrastructure — a shared, living map of human settlement — that cities have never had before.
What happens when every city on Earth can see itself in 3D, and share that vision with every other city.
