Our tender to a participate in the Open House - Benchmarking and mainstreaming building sustainability in the EU based on transparency and openness (open source and availability) from model to implementation, was awarded in November. In the confines of the international research project receiving funding from the European Community a we received invitation to perform “Basic and Quick Sustainability Assessment” of the OPEN HOUSE methodology for two Office buildings in Hungary (Nordic Light Offices building and Corvin I offices building).