The wartime destructions in Ukraine are enourmous – and so is the reconstruction work that lies ahead. When the war ends, the task of rebuilding the country begins, with a very large predictable co2-emission if construction is done with business as usual. The project will introduce the fully certified and bio-based construction system EcoCocon on the Ukrainian market, in order to show that climate-friendly building metods exist and can be used on a par with conventional cement-based and highly co2-emitting options. And also to show concrete ways in which the Ukrainian goverment’s vision for zero-carbon construction and rational design can be realized. In this pilot project we build a kindergarten in the town of Irpin, in collaboration with Irpin municipality, local stakeholders and Ukrainian architects in both Denmark and Ukraine. Irpin was 70% destroyed by the russian agressors in the first weeks of the war but is now under gradual reconstruction.