When he took office in February 2020, the Green politician Michael Werner-Boelz, head of the Hamburg-Nord district, declared that he no longer wanted to allow a new single-family home in his district.

The excitement was great, nationwide.

A home ownership ban?

Unheard of.

What Werner-Boelz does in Hamburg-Nord could become the standard in urban planning nationwide.

First in metropolitan areas, but at some point also in rural regions.

In small steps, the single-family house is declared an environmental problem.