Joint strategy for transition towards climate-neutral buildings was made for five partner countries (Croatia, Italy, Austria, Germany and Poland) aiming at public authorities who committed to use the Smart Data Hub for management of their building stocks and development of shorter term, action plans until 2030. This long-term document (until 2050) used methodological approach regarding building standards and was jointly developed by all project partners.

The piloting action resulted with one jointly developed holistic solution: a system for sustainable management of new and old public and private buildings. The Smart Data Hub presents a powerful tool for optimization of performance of building stocks, prioritization of renovation measures, calculation of financial and economic benefits of renovations and simple development of action plans for their future utilization.

The piloting action was carried out through the Sustainable Building Methodology with an Evaluation toolbox for performing technical assessments and simulations as solution for (re)construction of public and private buildings in line with EU sustainable buildings framework - Level(s), related EU directives, standards, guidelines and tools regarding buildings energy efficiency and sustainability. Market actors are adopting it as requirements in their projects as a solution for (re)constructions of their buildings.

A strategy was created for a unified sustainable building methodology for (re)construction of buildings in central europe with a dedicated set of recommendations for enhancement of existing building standards on national/regional levels in five pilot countries. This output came as a result of close cooperation with building specialists and policy makers and its implementation was managed in form of adoptions of new methodology within national/regional building renovation strategies.

The piloting action resulted in the final version of the Advisory Hub - one stop shop solution for project and policy developers (public authorities, SMEs, enterprises and sectoral agencies) but also financial institutions willing to adopt the methodologies developed throughout the entire project period. The hub is assisting developers willing or planning to use the Smart Data Hub, Sustainable Building Methodology, Evaluation toolbox or other Financial advisory services.

Strategy for reaching climate neutrality of building stock with innovative and citizen involved financing models was jointly developed for regional public authorities in five countries. The strategies cover the long-term vision (until 2050) with action plans deriving from this strategy. It provides more concrete steps and solutions coming from the piloting phase. The strategy was peer-reviewed by MESTRI-CE project partners and will continue t be an importing document for different decision-makers in public and private institutions.

The piloting actions resulted in one holistic financing methodological solution with several components made for project developers, financial institutions, crowdinvesting platforms, public/private entities and citizens. • Financial and economic evaluation toolbox • Documentation/prospectus with environmental impact, performance and proceeds tracking methodology in line with EU and other voluntary standards (eg GBS) • Feasible financial models and schemes which involve citizens as investors •