It is part of a significant local heritage group that includes the church, rectory, and adjacent cottage.

The group forms part of a large collection of important to late 19th century buildings of considerable townscape, historic and cultural significance, including the former St Mark's Crescent School, St Mark's Cottage and Bishopscourt, formerly Greenoaks.

[1][2][3] Constructed between 1848 and 1880, St Mark's Church was designed by Colonial Architect to New South Wales, Edmund Blacket, in an early Victorian Rustic Gothic Revival style with nave, chancel, vestries, organ chamber, tower and spire; made of Sydney sandstone with hardwood timber shingled roofs.

[5] Established under the patronage of Bishop William Grant Broughton, the inaugural incumbent at St Marks' was the Reverend George Fairfowl Macarthur, who also served as the proprietor of St Mark's School which he conducted first at the rectory, then at Macquarie Fields and later at The Kings School, Parramatta.

This Wikipedia article was originally based on the St Marks Anglican church, the Rectory of St Marks church, and the St Marks Cottage - building, sandstone retaining walls, all listed on the "New South Wales State Heritage Register" published by the Government of New South Wales under CC-BY 3.0 AU licence (accessed on 19 March 2018).