a building-focused window to OpenStreetMap

OpenBuildingMap offers you standardized and extended information from the most verified global building data set.

We continuously consume data from OpenStreetMap, cleanse it, process additional building attributes and make the results available to you.


preview of online map

Go to the web map to look at the OpenBuildingMap data.


The data includes buildings of the whole earth with the following attributes:

Attribute Data type Description
building_id integer OpenStreetMap ID
geometry EPSG:3857 Footprint of the building
occupancy string Computed and guessed occupancy, based on several OpenStreetMap tags and landuse information
amenity string amenity tag from OpenStreetMap
building string building tag from OpenStreetMap
use string building:use tag from OpenStreetMap
levels string Number of floors in a building (from OpenStreetMap and guessed from height of building)
ground_area float Size of the building footprint
floor_space float Ground area multiplied by number of floors
position string Position of the building in a block


All of our source code is Free Software. Please check out our repositories. Contributions are very welcome.

Photo by Ajith Kumar