Over the past year, the role of urban homes, driven by the COVID-19 pandemic, has expanded not only to housing but also to work and activities, which has created demand for new types of business, solutions and services, as well as for the sharing of resources. In addition, housing companies are under pressure on sustainable renovations and reforms. Circular Green Blocks helps companies to identify and develop business opportunities that promote circular and sharing economy at block level, as well as housing companies to realise their potential to implement circular economy solutions in their own property and in the neighbourhood. The main target group of the project is companies that develop solutions that support digitality and green growth and utilise new technologies and the housing companies that use them. The circular and sharing economy solutions are tested in several pilot blocks in the Helsinki metropolitan area. The pilots and other solutions to be tested are based partly on the needs for change already identified by the cities (for example, related to mobility and improvement of the yard), but also in the pilot blocks themselves, which arise from the needs arising in the cooperation with housing companies. The project will develop demonstrations based on housing company-specific 360-imaging, 3D modelling and accurate digital environmental information, which will be presented to potential service providers (e.g. real estate and spatial data companies) and to customers (house companies/inhabitants). Different methods of co-creation and matching of supply and demand for solutions are key methods of the project to improve business opportunities in the circular and sharing economy sector. The project has resulted in the development of sustainable, innovative and profitable block solutions for selected themes (sustainable mobility, improvement of the yard according to the circular economy and/or urban farming and pop-up event), as well as practical demonstrations of digital sharing economy services and solutions for housing companies. This gives us an understanding of how to bring smart living services using housing company data that use the digital dimension of housing companies to a block level: provide practical examples of the conditions for housing companies to implement solutions. At the same time, companies’ understanding of implementing solutions with several housing companies improves. Cooperation with business services and international networks supports the business potential of emerging solutions and cooperation with, for example, the City of Helsinki Circular Economy Cluster ensures that the resulting lessons can be utilised for wider circular economy development and business development. In addition, the city’s understanding of sharing and circular economy solutions and of taking these solutions into account in regional development will improve. The project will result in both new solutions and new information on the exploitation potential of accurate 3D spatial datasets in demarcated co-operative urban areas such as block yards and related circular economy operators (house companies & residents, real estate, management, maintenance and environmental operators). In addition, companies providing services based on GIS will benefit from the experiments and experiences to be carried out, as the project will provide them with practical tested information on expanding business opportunities. The actions to be carried out, the new information to be generated and the solutions support the development of digital services in Finnish cities based on concrete needs close to the everyday lives of the residents. The project promotes a sustainable housing environment, a circular economy and a smart, functional city. The project’s activities will contribute to regional economic recovery, increased competitiveness, smart specialisation, the emergence of innovative solutions for green growth and sustainable technologies, and a systemic transformation towards a circular economy. The project contributes to sustainable development in all its dimensions. The project will contribute to the decoupling of economic activities from resource consumption and adverse environmental impacts. In particular, the project promotes local circular economy industries and the development of intangible products and services. At best, the solutions tested also increase social well-being as community and environmental know-how grow. Equality and equality have also been taken into account in the project by incorporating them into the working methods of the whole project, e.g. by using gender-neutral terminology and by designing activities, communication and service design aimed at target groups, taking into account the gender perspective and the diverse needs of different population groups.