Neukölln is one of the twelve boroughs of Berlin, Germany. It is located south of Berlin's centre and stretches southeastwards to the city boundary, encompassing the localities of Neukölln, Britz, Buckow, Rudow and Gropiusstadt. Neukölln borough was part of the American sector during the Four-Power occupation of the city. It is characterised by having one of the highest percentages of immigrant residents in Berlin. An influx of students and artists since the mid-2000s has led to gentrification.