公寓住宅里居民之间的相互交往,在现代社会生活中是一个值得注意的问题。荷兰建筑师赫茨伯格的这一住宅设计的独特之处,正在于考虑到了这个问题,并且着力去解决。卡塞尔住宅中,楼梯间打破了以往设计中仅作为内部垂直交通空间来设计的惯例,而是把它作为外部街道在室内的延续进行处理。楼梯平台为居住者提供了相互交往的公共场所,成为室外公共空间和室内私 The interaction between residents in an apartment house is a noteworthy issue in modern social life. The uniqueness of this residential design by the Dutch architect Herzberg is taking this issue into consideration and is focused on solving it. In Kassel’s residence, the stairwell breaks the convention of designing as an interior vertical traffic space in the past design, but treats it as an extension of the exterior street in the interior. Stairs platforms provide occupants with public places to interact with each other and become outdoor public spaces and private facilities.