James Allen’s Girls’ School is company limited by guarantee and incorporated in England number 6618970, registered charity number 1124853.

The charity's ‘Objects Clause’ states:

‘the conduct at Dulwich of a day school in which there shall be provided a practical, liberal and religious education, including a Senior School for girls and (if thought fit) a Preparatory School which shall be primarily for girls but to which boys may also be admitted; and ancillary or incidental educational and other associated activities for the benefit of the community.