Construction will become much more expensive mainly due to the skilled labor shortage, not only because the remaining workers can demand higher wages, but also because construction in general will take much longer. Nowadays, one already waits forever for offers, if any come at all, and the coordination of trades is becoming increasingly difficult. Just in Time does not work there. In the future, those who can do some things themselves will save a lot of money. Even more than now. However, this also means that buildings from around now will have to be examined very closely, as improper solutions are likely to become even more common. So anyone who buys a house from this construction year in 20 years will really need good experts who can look beyond the first layer.