Tour (Tower) Saint-Jacques. The church, with the exception of the tower, was demolished in 1793; preservation of the tower was a condition of the contract by which the church was bought for the value of its building materials. In 1824 it was being used as a shot tower to make small shot. It was repurchased by the City of Paris in 1836 and declared a monument historique in 1862. A statue of the saint was installed on the top of the tower during the 19th century.

Recent findings show that most of the stone and its ornamentation originates from the late-medieval era of the tower's construction, and was not added by the 19th-century restorers. Unfortunately, the survey also indicates serious cracking. The top three quarters of sheeting were taken down in March 2008