Abstract: Disclosed are a system and a method useful in fields such as architecture, space planning, interior design and corporate facility management, for efficiently designing and allocating space to the various subdivisions of an organization. Manipulation of colors is used in addition to numerical values to allow the user to determine at a glance the relative priorities of various departments and the affinities between pairs of departments at various stages of the space allocation process, and thereby speed the process and reduce the chance for errors.