Thomas Sieverts (1934 with Hamburg) is an architect and German town planner.

Formed with Stuttgart, Liverpool and Berlin, he taught with the University of Harvard, the Technical University of Darmstadt, with the University of Arts of Berlin.

He in particular carried out the Bochumer Westpark.

With the theoretical plan, one owes in Sieverts the concept of Zwischenstadt or “between-city”: vast territories with the indefinite forms, produced economic, social and cultural logics which call into question the concept even of city to the European one. He professes the adaptation necessary of the practices of European town planning to the emergence of phenomenon. He criticizes the concepts of urbanity, centrality, density, co-education and ecology, which still very often correspond to phantasms. It is finally the place of the subject itself which is in question, from where the importance to create the origins of a feeling of membership of the zwischenstadt.

French bibliography

• 2004 Sieverts, Thomas, Between-city, a reading of Zwischenstadt, editions brackets