The history of the built environment, stressing social, typological and vernacular aspects, has formed a strong current among Swedish historians of art and architecture, at least since the 1950's. This paper discusses the study of historic built environment in Sweden through focusing on the work of Gregor Paulsson, art historian and key figure in the Swedish modern movement from the 1910's through the post-war period. In his inter-disciplinary approach, social, economic and aesthetic aspects were joined.