Charlottenburg was an independent city to the west of Berlin until 1920. Then it was made part of Groß-Berlin (Greater Berlin) and turned into a borough.
As a part of the changes to the boroughs of Berlin in 2001 Charlottenburg was joined with Wilmersdorf to make the new borough of Charlottenburg-Wilmersdorf. In 2004, the new borough's districts were rearranged. The former borough of Charlottenburg was divided into the localities of Westend, Charlottenburg-Nord and Charlottenburg. In addition to that, Charlottenburg features a number of popular kiezes.