Barmwisch-Bramfeld belongs to the district of Wandsbek. Wandsbek is the most populous district in the Free and Hanseatic City of Hamburg and has a population of ca. 430,000 inhabitants, which represents a quarter of the entire population of Hamburg. The Energy Improvement District Barmwisch-Bramfeld is characterised by rows of buildings and freestanding narrow buildings up to 10 storeys in height. The existing building stock is largely owned by housing cooperatives and is dominated by aged prefabricated houses of the early 1970s, which have high energy saving potential.