[3] As part of Australia's Bicentennial in 1988, new stained glass windows by artist Klaus Zimmer were installed in the ground floor.
It features a tall square bell tower marking the important street corner, and round Romanesque arches around doors and windows and the open cloisters in each side.
The interior was designed in the form of a theatre auditorium, in accordance with the principles of the Congregationalist Church, as a place where all members of the congregation could both hear and see the preacher.
It features a sloping floor with tiered seating, and a steep gallery behind a ring of high aches on slender cast iron columns, ensuring good sight lines.
She holds a PhD in Christian social ethics from Union Theological Seminary in New York, where she lived, studied and taught for 12 years.
Mayman, a key figure in the Same-Sex Marriage plebiscite in Australia, has seen St Michael's "provide a sanctuary for LGBTQ people hurt by religious institutions".
He also recognised a need for The Big Tent Project, aimed at supporting kindergarten aged children suffering from mental health issues.