Information on the 69 office buildings and 97 residential ones investigated within the HOPE project is stored in the HODA database. This includes building characteristics collected by the building management according to a checklist, and responses of occupants to questionnaires asking their perceived comfort (thermal visual, acoustical and IAQ) and health (SBS and allergies). This database allows benchmarking any building with regard to building characteristics such as energy use, ventilation system, occupant density, perceived comfort, sick building syndrome, etc. The HODA database is presented including the way to compare other buildings with the buildings investigated in the HOPE project in order to characterise how healthy and energy-efficient they are.