The school does not deal directly with admissions to the school. Admissions for every age group are administered by the London Borough of Bexley School Admissions team. The Admissions team operates within the Bexley Policy and Planning department, providing arrangements for school admissions.

• The ‘Admission to Primary Schools’ brochure, produced annually by the Bexley Local Authority, sets out details for admission to schools for 5-11-year-olds.
• If you are a resident of the London Borough of Bexley, applications for admission (nursery and primary) can be made online.
• In-year application forms are available online. 
• You can find further information on the London Borough of Bexley website or by calling 020 8303 7777:
• Information about selection tests (11+) and secondary school admissions can be found online also.

Approved variation – 22 July 2026

On 22 July 2026, the Department for Education approved a variation to the determined admission arrangements for Castilion Primary School for the 2026/27 academic year.

The Published Admission Number for admission to the Reception year in September 2026 has been varied from 60 to 0.  Castilion Primary School will not admit a new Reception cohort during the 2026/27 academic year.

All other provisions contained within these admission arrangements remain unchanged.

The link to the London Borough of Bexley - starting primary school is below:

https://www.bexley.gov.uk/services/schools-and-education/primary-schools/starting-primary-school

In year admission forms should be completed online:

https://www.bexley.gov.uk/services/schools-and-education/year-applications/applying-school-year