Who hasn't heard of the famous trickle down effect in housing...

Where I live, building affordable housing for low and medium income is at the moment financially unattractive, so it isn't undertaken in the numbers required to meet projected demand. Offering luxury housing for the small segment of the population able to afford it, won't make a difference.

https://www.reuters.com/markets/europe/german-housing-shorta...

https://www.reuters.com/markets/europe/german-home-building-...