Tampere city has a population of 230,000 inhabitants and is located in central Finland. The pilot area Härmälä is situated three kilometers south of the city center. Härmälä can be considered a “miniature version” of the whole city of Tampere with regard to ownership structures and the share of different functions. It comprises areas with newly constructed and older multi-family blocks, areas with older detached houses as well as industrial uses. Each part of the district is characterised by specific functions and needs when it comes to energy efficiency planning.