Living on the Sonnin Canal - Thanks to Hamburg's fantastic development, the demand for inner-city housing is growing. Thus, established areas like the old working-class district of Hammerbrook are seen in a new light. Hammerbrook used to be a residential area and it will soon be that again. On the Sonnin Canal, 129 condominiums were created, including underground parking and direct access to the idyllic footpaths along the river Bille.