Why do we have to renounce to our comfort in order to reduce apartment's space? Why do we need to maintain an unique free open space to regain area? Why must we think about fixed furniture? SLOFT explores the concept of an apartment where furniture move to create different ways of living alone, with a partner or friends. SLOFT separates what has to be fixed, like bathroom and kitchen, and what should be mouvable. SLOFT allows people to live in a small place with a large number of comfort. People can find a lot of possible combinations for their own use in SLOFT . SLOFT is a prototype of a condensed apartment for the congestioned city.