Deele College consists of 40 traditional classrooms and the following specialist rooms:
- 4 Computer Suites
- 3 Science Laboratories and a Science Preparation Classroom
- 2 Home Economics Rooms
- 2 Materials Technology
- 2 Woodwork Rooms
- 2 Metalwork Rooms
- 1 Music Room
- 1 Art Room
- 2 Career Guidance Offices
- 1 Behaviour for Learning Room
- 4 Safe-base Classrooms
- 1 Student Canteen
- 1 Sportshall and Fitness Suite
- 1 GAA Pitch
- 1 Soccer Pitch
