Living habits will change in a not so far future. High demands for flexibility will not only change our way we work, but also the way we live. Space in cities is becoming more and more valuable. Therefore this concept proposes adaptive modular units, which can be expanded when floor space is needed, and shrinked, when the module is going to be left unused. This approach is based on the simple assumption, that every working individual uses his home only ten to fourteen hours per day and in the rest of the day it is vacant.