House allocation varies from school to school. At CLC, you apply to the school (rather than to a specific house) and House places are not allocated until 2-3 months prior to enrolment (ie June/July for a September start), many months after offers of places have been accepted.
Despite the fact that many girls are active in the sporting and musical lives of College, we do not have Houses which are linked to specific activities as is the case in some schools. Parents are able to express a preference, if they have one, but we are unable to guarantee places in specific Houses, except in the case of siblings. At College, we take into account a broad range of factors when matching pupils to Houses, and try to achieve a balanced mix of abilities, interests, personalities and previous schools across each of the Houses.