 The church has a Norman tower with a 13th-century belfry, 14th century arcades, a 3-bay aisled nave rebuilt in 1820 and a 15th-century chancel.The south chapel was constructed in 1883.The graph shows that during the period of 1811 to 2011 census data has recorded fluctuations in the population of Great Ouseburn, starting at 395 in 1811 there was a gradual increase in population to 437 in 1821; the population then reached a peak in 1851 with 629 people; remaining in the 5th century for the 70 years the population the decreased to 368 in 1931 and then reached its lowest in 1951 at only 249 people increasing to 347 by 1961.