Built in the form of a cross, the church nave measures 58 metres (190 feet) in length, with transepts that are 41 m (135 ft) across.
Originally 4.6 m (15 ft) taller, the church steeple was struck by lightning in 1914, requiring part of the spire to be rebuilt.
With repair cost estimated at $3 million, the Société Édifice Sainte-Marie de la Pointe worked on raising the funds required with a deadline of 2021.
[3] In late 2024, another group, Association Sainte-Marie heritage et développement (www.saintemarieheritage) stepped up and is currently working to save the structure, slated for demolition as early as Sumer 2025.
The church is exposed to the strong winds from St. Mary's Bay, so 40 tonnes (44 short tons) of stone ballast were used to stabilize the steeple, and canvas, rather than plaster, was used for the walls.
The interior of Église Sainte-Marie features a high, vaulted ceiling lit by a row of clerestory windows, below which runs a band of Romanesque arches around the church.