Trinity College is an independent day school for boys, located on the Swan River foreshore in East Perth, Western Australia.

Trinity is a school in the Edmund Rice tradition promoting classic and modern education, culture, dance, drama, music, service to others, spirituality, sport, and vocation.

The new campus at Aquinas depleted student numbers at CBC Perth, which no longer accommodated boarders.

Nearby, St Patrick's, a Christian Brothers school in the city on the corner of Wellington and Lord Streets, was overflowing.

[1] The Chevron-Hilton Hotel Group which had committed to the development, ran into difficulties, and the school buildings remained until demolition in the mid-1960s.

The council provided a 5.7-hectare (14-acre) site for the new college on reclaimed land in East Perth on the banks of the Swan River, next to the WACA Ground, Gloucester Park, and The Causeway.

Even with the pressing deadline, Brother Kelly was instrumental in building the imaginative round chapel at Trinity, and he commissioned Ted Gowers to design the stained glass windows set in concrete.

[8] Brother Kelly also commissioned artist Margaret Priest to design and make abstract statues of the Sacred Heart of Jesus, the Blessed Virgin Mary, the Crucifix, and the fourteen Stations of the Cross.

[1] The school had a new crest and motto, and retained the colours and the honour boards of CBC Perth which were raised in 1938.

In 1968, Trinity joined the PSA and the manful rivalry with Aquinas, the old foe, entered a level playing field.

The original 1962 buildings included Trinity Chapel, A and B blocks, Gibney Hall, the pavilion, a squash and handball court (both demolished late 1999), and the Brothers' Monastery (rebuilt into the Junior School in 1991).

In 1983, Gibney Hall was widened, by bricking-in the balcony on the western side, and lengthened to accommodate all students and staff at assemblies.

In addition to the East Perth campus, the school has Camp Kelly, an outdoor education facility situated 8 km south of Dwellingup, and 10 hectares (100,000 m2) of sports ground at Waterford.

The sporting skills, coaching, fitness and organisation of students from the seven PSA schools is commensurable to the highest levels offered by any schoolboy competition in Western Australia.

This is evident by the number of former PSA students who compete in their chosen sports at state, national, international, and Olympic levels.

As the most recent school in the PSA, Trinity has improved over time and the college has moved up the ranks in most sports.

Courses along Heirisson Island, the Swan River foreshore, and Kings Park including Jacobs Ladder provide excellent cross-country tracks.

Negotiations for these purchases with the City of Perth have repeatedly fallen through due to town planning intentions.

Summer and winter team sports hold similar selection procedures relevant to the criteria set-down by each code.

College champions for summer and winter team sports are chosen by judging committees who award points for a player's performance for each official PSA fixture.

"In Nomine Domine" is sung at Speech Nights, Year 12 Graduations, Anzac Day ceremonies, and at PSA sporting events.

The teachers, Ian Francis Hailes and Anthony Paul Webb, were said to be the first people convicted under WA's mandatory reporting of sexual abuse laws.

[34] The alleged victim told a court he was bullied throughout the trip including being forced face-down onto a bed by Trinity teammates, his pants pulled down and sexually assaulted with a carrot.

[35] The court found the teachers formed a reasonable belief on the rugby tour that sexual abuse might have occurred, but did not report it, as required by law.