Kommendantsbacken board members first became interested in participating in LEAF as they were looking for ways to to assess the energy efficiency of their building. This four storey building has seven dwellings; with some dwellings built into the basement and others in the roof space. All of the apartments are under shared ownership of the housing cooperative, and the building’s current EPC rating is ‘F’. The building is located within the Visby old town World Heritage site and whilst the building is not listed, strict building regulations apply. Any measures that might change or alter the building’s use or external characteristics require a permit from the municipal office. The focus therefore needs to be set on indoor or technical refurbishments. There is an added complication in that the main building is connected to the district heating network, while the two smaller buildings run and finance their own heating system.
In order to narrow down the various alternatives, the building is being assessed in terms of its technical condition and fuel systems using the EPC to get a comprehensive view of the situation and its potential. The residents will also contribute with opinions based on their own experience of indoor comfort and utility bills.