Seminar “Circular Economy in the building construction sector”, organized by Association of Polish Architects and D'Appolonia, took place in Warsaw on 17 May 2017. The main idea was to popularize the bio- renewable, easy-to-use panels which are the results of BRIMEE project. Speakers from University of Technology and organisations connected with “green buildings” as well as representatives of BRIMEE and other EU projects were presented different topics related to the circular economy in the construction sector. One of the invited projects was HISER, represented by Przemysław Dana from ASM-Market Research and Analysis Centre.