Anywhere in the world. (updated January 2026)

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The dark blue polygons on the map indicate areas that are currently being used for car parking.

Click on the ■ or ⬟ icons on the map to select an area.

The Parkulator calculates the area of the selected region being used for parking, and tells you how many houses could have been built in the space instead.

Click on the buttons to jump to different cities.
Carparkulating... Analyzing selected parking areas

Click the polygon at the top-left of the map to get started.
On-street (aka kerbside) parking is not included in the calculation. Nor are home driveways. Nor are most private business car parks.
Location lookup by locationiq.
Documentation and methods and raw data are on The GitHub repo.
Parking polygons are extracted from OpenStreetMap and are the copyright of the OSM contributors.
The Map API is hosted on a free-tier server on Azure. I wrote the server myself, the code is awful. If this site gets popular it will go down.