Muther [3] has proposed a methodology to design plant layout based on analysis, search and selection procedure as shown in fig. 2. The alternative layouts generated by this method are based on block diagrams. The space relationship diagram is constructed by replacing the unit squares with space templates. For each activity, a space template is constructed to scale, to represent the size and shape of the activity. Since different shapes can have same area, it is possible to construct different space relationship diagram from the same block diagram. This method also relies heavily on the capabilities of the designer. It can, however, prove quite effective if proper care is taken in arranging the templates.