Sluseholmen is an artificial peninsula in the South Harbour of Copenhagen. It takes its name from Slusen, a lock immediately to the south, regulating water levels in the harbor. Previously the site of heavy industry and part of the Southern Docklands of Port of Copenhagen, Sluseholmen has, since the turn of the millennium, undergone massive redevelopment, transforming it into a mainly residential district known for its canals and maritime atmosphere.