“…To generate a design solution for building renovation, the shape of the space boundaries needs to be input to the design system. In previous research (Brandao et al, 2016), the definition of the boundaries was circumvented by requiring the user to input dimensions of the wall to be designed, height, width and length. This process is less than ideal, as it makes many assumptions on the boundary conditions: that the wall will span two existing walls and will go from the floor up to the ceiling; that the angles of the wall to the existing walls are close to perpendicular; that the floor, walls and ceiling are level within a specified tolerance.…”