The design concept for the eVillage eco-community originated with concepts previously known as the Technoplex and the Ever-Changing Palace. The basic notion is that of a conjoined community structure which is based on a demountable modular component building system which allows for spontaneous evolution as its resident’s needs change. Previously, triangulated space frame systems such as the Min-A-Max system developed by Peter Peirce were considered for use in this type of community. However, today the most likely system to be used for this is the industrial T-slot framing based Utilihab system, proposed as part of the Open Source Everything Project.