The south aisle was rebuilt during a restoration between 1850 and 1851 by JB and W Atkinson of York.[5] The body of the building was entirely re-pewed, and a new aisle, 10 feet (3.0 m) wide and 60 feet (18 m) was added on the south side, by opening the original arcades.
The chancel and vestry were rebuilt between 1886 and 1887 by Fisher and Hepper.[6] The chancel was rebuilt and was 38 feet (12 m) long and 23 feet (7.0 m) wide. It included a new vestry and organ chamber.[7]
The church contains stained glass of national significance. Kempe, whose work features extensively, stands as one of the leading national figures in nineteenth and twentieth century decorative art.1 The church also contains windows by two of York's most significant exponents of the Gothic Revival, Barnett and Knowles. Although seemingly insignificant, the Pace/Stammers window represents the collaboration between one of Britain's most influential modern architects and one of the UK's most important twentieth-century stained glass designers.
East Window (1907) by Charles Eamer Kempe. The window is regarded as one of Kempe's last works before his death in April 1907. The window shows Christ on the cross, as well as saints including Helena and John, and various representations of the Trinity.
North Chancel (1850) by John Joseph Barnett (1789-1859) of York. This is the earliest surviving stained glass in the church.
St Nicholas Chapel (1905) by Charles Eamer Kempe depicting St Nicholas resurrecting three children who had been killed in a barrel of brine.
St Nicholas Chapel (1953) by George Pace and Harry Stammers.
West Window (1904) by Charles Eamer Kempe depicting saints Benedict, James, Martin and Thomas whose altars could be found in the former Benedictine priory church.
^The Buildings of England. York and the East Riding. Nikolaus Pevsner and David Neave. Yale University Press. 1995. ISBN0300095937
^Roy Midmer (1979). English Mediaeval Monasteries 1066–1540. Book Club Associates/Heinemann. p. 343.
^"Ecclesiastical Buildings". An Inventory of the Historical Monuments in City of York, Volume 3: South West. Institute of Historical Research. 1972. Retrieved 19 December 2013.
