It would be interesting to pair this with some kind of settling density metrics.
In Switzerland you for example can get a very old and very remote house for 200k. But as soon as it’s in a comfortable distance to Zurich, it’s first unavailable (not much supply) and second at least 1000k.

I wonder how this looked like in 1950. Could you create a metric like per 10km driving to center per square meter living space?