This paper presents an implementation of multi objective optimization for a rectangular facade design proposal in a healthcare building's common space. Objectives are to maximize daylight performance and to minimize facade construction cost. The aim of this study is to enhance indoor comfort of an existing healthcare building by concerning cost effective facade design alternatives subject to several constraints. To handle the problem, we formulate a multi objective real parameter constraint problem. In order to solve this, Non Dominated Sorting Genetic Algorithm II and Multi objective Self Adaptive Ensemble Differential Evolution algorithms are used. Finally, both algorithms are capable to discover desirable set of design alternatives.
