Yarmouth's First Parish Congregational Church is located to the east of the town center, on the south side of Main Street (Maine State Route 115). It is a tall single-story wood-frame structure, with a gabled roof, an exterior sheathed in clapboard and flushboarded siding, and a granite foundation. A square tower projects slightly from the front, with a gabled entry vestibule projecting further in front of it. The entry consists of a pair of doorways, each flanked by thin composite columns and set in round-arch openings. A larger three-part round-arch window stands above them, with a banded frieze along the raking gable edge of the vestibule. The tower has four stages, and is elaborately decorated, with an open belfry and an octagonal spire.[2]
The First Parish congregation was established in 1730, and first met in a meetinghouse, known as the Meetinghouse under the Ledge, about 1 mile (1.6 km) south of this location. In 1818, they moved to a new building, known as the Old Sloop, across the street from its current location. That building was turned into a public hall after the congregation moved out in 1868, and was demolished in 1879.[2] The cost of the new church was $35,000.[3]
The church was designed for the congregation by Portland architect George M. Harding, one of Maine's leading architects of the mid-19th century. It is one of only three church designs of his to survive in the state.[2]