Uccle or Ukkel is one of the 19 municipalities of the Brussels-Capital Region, Belgium. Located in the southern part of the region, it is bordered by the City of Brussels, Forest, Ixelles, and Watermael-Boitsfort, as well as the Flemish municipalities of Drogenbos, Linkebeek and Sint-Genesius-Rode. In common with all of Brussels' municipalities, it is legally bilingual (French–Dutch).

The Art Nouveau movement of architecture and design first appeared in Brussels, Belgium, in the early 1890s, and quickly spread to France and to the rest of Europe. It began as a reaction against the formal vocabulary of European academic art, eclecticism and historicism of the 19th century, and was based upon an innovative use of new materials, such as iron and glass, to open larger interior spaces and provide maximum light; curving lines such as the whiplash line; and other designs inspired by plants and other natural forms.