Buildings are responsible for approximately 40% of energy consumption and 36% of CO2 emissions in the EU. Deep Renovation of existing old buildings has the potential to lead to significant energy savings and a tremendous carbon footprint shrinkage. The current EU climate targets open an ample opportunity for exponential growth in the building thermal insulation materials market owing to the increasing number of new residential buildings and current deep renovation needs. The target is to support residential building´s construction performance extraordinary at all three hierarchical levels of construction parts simultaneously (building, component, material) by creating an amplified environmental impact and reducing additionally VOC emissions. BIO4EEB will apply non-hazardous bio-based material as e.g. Posidonia and various bio-based foams to develop and to proof the marketability of smart components for external and internal use as material application, pre-fab panels or windows. The efficiency and effectiveness is quite important to match with market demands and establish a unique selling proposition including a seven years RoI! BIO4EEB will close the increasing gap of insulation material shortage caused by the regular growing demand and the mismatch caused by lacking production potential and the outcome of the current energy crisis by boosting the use of available bio-based qualified materials as alternative solutions. The objective is to substitute using fossil resources for components and replace them at a comparable price value positioning. New business models utilizing the complete economic value chain open the market for bio-based BIO4EEB solutions and products uplifting the generic bio-based material use and qualifying their application at a circular economy approach for creating a much greener EU building and construction industry real estate stock.