The church was located in a Gothic Revival building designed by John E. Belcher at the corner of Charlotte and Reid Streets.

By the turn of the 20th century, they had outgrown these premises and the lot for the present church was given by the family of Senator George A.

[5] Faced with dwindling congregation and rising repair costs in the early 21st century, in April 2019, a motion to merge with Emmanuel United Church was defeated.

[5][7][8] Trinity was constructed between 1914 and 1916 in the Gothic Revival style by architect Edmund Burke.

[9] It is of light grey Credit Valley sandstone construction with Indiana limestone trimmings.