The implementation of Sustainable Development (SD) within an Organization is a difficultrtask. This is due to the fact that it is difficult to deal with conflicting and incommensurable aspects such as environmental, economic and social dimensions. In this paper we have used a Multi-Criteria Decision Aid (MCDA) methodology to cope with these difficulties. MCDA methodology offers the opportunity to avoid valuation of the different dimensions of the SD. These dimensions are not substitutable for one another and all have a role to play. There is an abundance of possible aggregation procedures in MCDA methodology. In this paper we have proposed a method to choose a suitable aggregation procedure for SD problems. The outranking approach (i.e., ELECTRE) and the mono-criterion synthesis approach (i.e., MAUT approaches based on the Choquet integral) were implemented to rank 22 SD actions within an expertise Institute and rank 20 actions to control energy consumption of the Institute's buildings respectively.