The project focuses on the field of sustainable buildings and area developments. This theme has been subject of various initiatives around Europe over the last few years and has major development potential .The project's main goal is to meet a need for information and co-ordination at European level, expressed by most user groups and stakeholders in this fields. The project will make available (via a web site, a newsletter and a European conference) a set of reference information (guidelines, catalogue, directory, etc.); exploring in particular the energy dimension of the domain, a dimension which is considered to be one of the key ones of current developments.