The College under the Trustee Body, the Des Places Educational Association, is administered by the Board of Management.
The Principal and Deputy-Principal are assisted by the Academic Administrator, Year Deans, Director of Boarding, Heads of Department, Assistant Principals (8) and Special Duties Teachers (17).
The Dean in each Year is aided by a Counsellor and a team of Student Representatives. There is also a Parents’ Committee in each Year, which feeds into the College's Parents’ Council. The College places great emphasis on the involvement of parents which is deemed essential to the realisation of the spirit of the College.
The day-to-day non-academic administration of the College is delegated to the Administration Committee made up of the Principal, Deputy-Principal, Financial Controller, Superior of Community and Maintenance and Grounds Manager. The Household Manager and Director of Boarding are also invited to attend.