In 1943, Annunciation absorbed the congregation of St. Christopher's Episcopal Church, which ended its own separate corporate existence in 1947.

The church building included elements by the New York architectural firm of Heins & LaFarge.

It included a bell tower, an adjacent parish house for educational and parochial activities, and free sittings for 650 persons in addition to a large chancel for acolytes and choristers.

It was among the first Anglican churches anywhere in the world to practice Benediction of the Blessed Sacrament and eucharistic exposition.

Several of its clergy were also associated with the Congregation of the Companions of the Holy Saviour (CSSS), an Anglo-Catholic fraternity for celibate male priests.