This thesis begins by discussing the contemporary housing crisis. it further appoints that a change is needed in the design of housing. And this change could be flexible architecture. Flexible architecure as in, when a building can adapt to new changes. Changes like: the inhabitant(s) need for space. The inhabitant(s) economy. The inhabitant(s) geographical position. The inhabitant(s) will of changing the design to their own needs. The thesis continues by exploring flexibility on a micro level. The author of the thesis propose a flexible construction system made out of wooden bricks. The author investigates what the qualities of the system but also the limitations. In the last part of the thesis the author investigates flexibility on a macro level. He proposes a grid-system made out of CLT-beams. Where flexible modules made out of wood inhabit the gridsystem. The modules can be adapted for many different changes. Changes like need for more or less space. The need for moving, etc.