CBC Preparatory School is a small private primary school  for boys attached to Christian Brothers College Secondary School. The ‘Prep School’ is an integral part of CBC. It caters for boys from four to twelve/thirteen years of age: from Junior Infants to Sixth Class level.

Preparatory School pupils transfer automatically to the Secondary School after Sixth Class, as the Preparatory and Secondary are the one school. Therefore when a boy enters Junior Infants, his educational track has been decided for his entire first and second level career.

Free after school care is provided in the Preparatory School for Junior and Senior Infant pupils until 3.00pm and then until 4.00pm for a small charge. Students from 3rd – 6th Class can stay in school until 4.00pm for “After School Study”, also for a small charge.

The close connections between the two schools enables Preparatory School pupils to use the playing fields, all weather pitch, gym, laboratories, computer room and other secondary school facilities. Both the Preparatory School and the Secondary School are fee paying.

Both the Preparatory School and the Secondary School are under the trusteeship of the Edmund Rice Schools Trust (ERST). All 59 second-level and 37 primary schools originally run by the Christian Brothers in the Republic came under this new body’s stewardship at the beginning of 2009.