The demand is coming from renters though. People are moving to Berlin. They need to build more houses or prices will go. Markets dont solve everything but they do here. Just ask tokyo how they got out of their housing crisis. Build More.
The population of Germany is declining, (Berlin population has been stagnant since 1950), wages aren’t rising but housing prices are going up everywhere. And the same story is repeating in multiple countries all over the world. So clearly, must be supply and demand and not just a speculative bubble, right?
Germany's population is increasing over time. In fact, 2020 was an all time high [1].
> Berlin population has been stagnant since 1950
Between 1980 and 2020, Berlin's population increased by half a million people [2]. In addition, it's population has increased every year since 2004 with an average of ~0.3% yearly increase.