When an area next to Lake Machnow and the Hakeburg, a castle dating back to the 14th century, with grounds of 400,000 square metres went for sale in 2005, the board of BBIS realised the advantages of this beautiful location. While BBIS had already been one of the leading international schools in the Berlin region for many years, this new location offered a whole new range of possibilities: here, the school would be able to offer an inspiring academic surrounding and combine it with the space needed for a variety of encouraging non-academic activities.