The European School, Luxembourg I (ESL1) was the first of the European Schools. It was founded in October 1953 on the initiative of officials of the European Coal and Steel Community, with the support of the Community's institutions and the government of Luxembourg. In April 1957, it formally became the first of the European Schools. Today it is located on the Kirchberg-Plateau in Luxembourg City.

Kirchberg is a quarter in north-eastern Luxembourg City, in southern Luxembourg. It consists of a plateau overlooking the north-east of the historical city center, Ville Haute, connected to the rest of the elevated city by the Grand Duchess Charlotte Bridge, which spans the Pfaffenthal valley. It is often referred to, in reference to the geographical feature it inhabits, as the Kirchberg plateau by Luxembourgish residents. Kirchberg is the predominant location of the European Union institutions and bodies based within Luxembourg, and is sometimes used as a metonym for the EU's judiciary, which occupies the quarter. It is thus the central business district of Luxembourg.