It includes a Greek Revival church building, built in 1838 to a design by Benjamin S. Deane, and an 1867 Second Empire parish house.
The church is a basically rectangular wood-frame structure, set facing west at the corner of Elm and Franklin Streets.
The tower begins with a short square stage, above which is a slightly taller and narrower section with deeply recessed panels, topped by gabled shallow pediments.
It is one of the least-altered of Deane's early works, which include a number of other area churches, as well as numerous buildings in Bangor.
The major changes include replacing the tower with the current one in 1850, and the lengthening of the building to the east by one bay to accommodate more pews.