This office building designed and built in Austria has not heating.
The weather in Austria is not really temperate but passive solar design and thermal mass can produce good sustainable architecture. Good sustainable architecture as our ancestors produced around the world and known as Traditional Architecture or Vernacular Architecture.
Nowadays, in part caused by a misunderstanding of the Modernist Movement, architecture schools, offices and professionals do not know much about traditional solutions and they keep copying a 100 years old style without attention to the site or the local culture.
Fortunately this is changing slowly.
GREEN BEANS IN THE CITY 