The college is blessed with a range of excellent buildings and facilities that help to add to the learning of our students.

Major facilities include a 700 seat Chapel/auditorium and a 150 seat Cultural Precinct. In recent years a purpose-built Middle School has been constructed, and the Primary School classrooms have undergone a major redevelopment to create larger, more flexible learning environments equipped with the latest technology. Trinity has more than 500 computers located across the college for staff and students to use. Currently we are working towards air conditioning all our classrooms. In 2007 much of the Senior School underwent a 'facelift' with the installation of new furniture and carpet in many of the rooms.

Trinity is also fortunate to have its own onsite restaurant which is used for various functions throughout the year.