sentences:  However, the fullest early exploration of a new, non-expressionist avant-garde idiom was in the 1923–24 'Italienischer Garten' in Celle by Otto Haesler.This was the first Modernist "Siedlung" (literally "settlement", though "estate" would be more precise), an area of new-build social housing characterised by flat roofs, an irregular, asymmetrical plan, with houses arranged in south-facing terraces with generous windows and rendered surfaces.Contrary to the 'white box' idea later popularised by the International Style, these were frequently painted in bright colors.