[1] The church was built between 1615 and 1617 by the German architect Christoph Wamser, and consecrated on 26 August 1618.

The church's construction was funded by the bishop of Strasbourg, Archduke Leopold V of Austria, who made a donation on his name saint's day, 15 November 1614.

[2][4] It became the parish church of Molsheim and was dedicated to Saint-George in 1791,[3] after the demolition of the city's former parish church, the previous Église Saint-Georges, on what is now the town's current market square (Place du marché).

The total length of the church, steeple and sacristy included, is 82.5 m (271 ft)[6][2][4][A] Among the many features inside the richly ornate building, the Baroque Saint Ignatius' Chapel (1621–1630) in the north transept and the Rococo Our Lady's Chapel (1748) in the south transept stand out as the most visually striking.

According to the floor plan with a scale of 2 cm (0.79 in) per 10 m (33 ft), the dimensions are decidedly higher.