BLDG 2.0 is a research project initiated by CASE, in partnership with New Buildings Institute, Arup Sustainability, SHoP Architects, Columbia University and IDEO. BLDG 2.0 will address two, somewhat paradoxical, barriers to informed sustainable design: the lack of publicly accessible performance data and the difficulty of extracting meaningful, consistent information from the raw, unstandardized data when it is available. BLDG 2.0 will move beyond this to create a real knowledge resource for building performance.