Many internal alterations were carried out during the 19th century including the addition of a pump house, laundry, and dairies.

Further repairs, and internal alterations, were made in 1869.

During the 20th century there were further internal alterations, particularly in the 1990s when the building was converted into a restaurant.

Eventually, in the 1980s, the building was gutted and underwent substantial internal alteration.

The original main building has been retained with internal alterations).

Some types of building work, such as internal alterations, may only require buildings regulations approval.

The last additions and internal alterations were carried out in 1930.

Other internal alterations appear to have been made in the late 19th century, possibly also by Barry in 1872.

Since the trust acquired the building, it has made several internal alterations.

The previous internal alterations had weakened the structure of the church and in 2000 it was declared to be unsafe.