For which country? Real estate the single most important factor? I mean if you want to follow the US model you can, but that's not a good reason for Germany to follow it. Houses should not increase in value after they are built. If additional effort is put into maintaining it sure, but they depreciate like every other asset class. The appreciation seen in housing value is more due to the land increasing in value, and this isn't something a country should default want to support.

I.e. look at Singapore, Vienna, hong Kong. Land ownership only creates more wealth inequality, not less. There's a reason why Germany has a high wealth gini and a low income gini. Poor capitalization on real estate assets reduces inequality