The chancel was extended eastward and a two-bay aisle was added to its south side, originally to increase seating for the congregation in main services. The north aisle was extended eastward by one bay to create an organ loft, to which a vestry was attached. The south aisle was rebuilt, with new Gothic Revival windows matching the new aisle south of the chancel. The easternmost bay of the south aisle was extended southward to form a south transept. However, the south window of the south transept is older, with heraldic stained glass made in 1832. Sources disagree as to the date of the three-light east window in the chancel. It was inserted in either 1867 or 1876.