Jean-Loup MSIKA has always considered the environmental appropriateness of each project as a major criteria, just as much as the urban, social, cultural, technical or economic relevances.

He has therefore lead an independent research on the urban form of the Sustainable City, and published, at the International Solar Energy Society (ISES)/ADEME seminar, Sophia Antipolis, France, 1993, a proposal for "Passive Solar Housing in a Dense Urban Context" and has subsequently endeavored to develop specific Sustainable City projects for various sites in Scotland, France, Japan, ...