The construction sector is responsible for over 35% of the EU’s total waste generation, and accounts for about 50% of all extracted resources and an estimated at 5-12% of total GHG emissions. WOODCIRCLES will contribute significantly to decreasing these numbers by developing innovative circular solutions for sustainable wood construction to help reduce Europe’s dependence on non-renewable resources, cut GHG emissions, reduce waste generation, and offer long-term carbon sinks and substitution of fossil-based and carbon-intensive products. WOODCIRCLES will combine the considerable innovation power of the expert consortium consisting of key stakeholders from all parts of the value chain to release the full circular and sustainable potential of wood construction. Based on identified needs and market potentials, the consortium will develop new value-added value chains for upcycling of wood waste materials and optimized design-for-disassembly building system solutions to significantly increase recycling rates of wood in construction. An ‘Urban Sawmill’ sorting and production facility capable of turning in-homogenous low value wood construction waste into a standardized homogenous value-added, cost-effective baseline product, will be prototyped. WOODCIRCLES will integrate digital tools and solutions in all developments and create digital twins for the large-scale, real-life demonstrators – the Urban Sawmill and the building system prototypes to demonstrate the benefits of digital technology for circular construction. Active involvement of partner cities and their building ecosystems through technical and thematic co-engagement activities will increase deployment. All developed materials, components and system prototypes will be demonstrated, piloted and fully documented – including sustainability assessment – for immediate market uptake. Based on developments, recommendations for new or updated European harmonised technical specifications and Eurocodes will be provided.

To this day, many techniques, tools and approaches have been developed and tested either on a lab scale or in pilot buildings around Europe. These demonstrations have served as great showcases for circular built environments, but they are yet to be demonstrated at higher level. Copenhagen, Hamburg, Helsinki region (City of Vantaa) and Greater London have teamed up with partners from the entire built environment value chain. The results will have a direct uptake in the value chain and enable cities to initiate circular transition. CIRCuIT will demonstrate three innovative solutions in the four cities: dismantle buildings to reuse materials; transformation and refurbishment; and design for disassembly and flexible construction. CIRCuIT will develop urban planning instruments to support cities in implementing circular construction solutions and initiate changes at system level; implement a Circularity Hub, a data platform to evaluate progress of circular economy and regenerative capacity; and set up a knowledge sharing structure, the CIRCuIT Academy, to promote upscaling of solutions. London, Hamburg, Helsinki region and Copenhagen have the ambition to bridge the implementation gap from individual pilots to the actual circular and regenerative city, by demonstrating the application of current and future developed tools and instruments for circular built environment at a city level in 36 demonstration projects. It is the intention to boost the regenerative capacity of the three cities and Helsinki region, and finalise the development of an advanced set of indicators for impact measurement in an effective and cross-European monitoring programme. The aim is to increase the regenerative capacity in the four cities, and to reduce the yearly consumption of virgin raw material by 20% in new built environments, and to show cost savings of 15%.