Campion School is situated in Pallini, 16 km east of the centre of Athens, in its own purpose-built facilities which opened in September 2000. Campion is the first international school in Athens for many years to build a fully equipped and modern facility for all of its children.

There are separate Junior and Senior schools on the site which are managed independently, with a little overlap in the use of facilities and staff, particularly in Physical Education and Music.

The Staff
The majority of the teaching staff are graduates of UK universities; a smaller number are graduates of Commonwealth and American universities and almost all teachers of foreign languages are graduates from the country where the language is spoken. Ongoing in-service training and conference attendance ensure that teachers are kept abreast of curricular and other educational developments.

Founded in 1970, the school was established with the following three Founding Aims:
To achieve academic excellence for the English speaking community of Athens.
To create a wholesome environment based on moral values to enable students to develop their characters and become responsible citizens in their respective communities.
To engender and develop an understanding and love for Greece and for Greek ideals.