The "Former monastic buildings and chapel", adjoining Kelham Hall, which "had been converted to offices and function room", have been Grade II listed since 1990.

"On 5 May 1647, King Charles I surrendered at the end of the English Civil War at nearby Southwell and was held at Kelham Hall for several days afterwards.

Its replacement was built c.1730 by John Sanderson for Bridget, the Duchess of Rutland, the only surviving child of the second Lord Lexington.

[6] The Manners-Sutton family then ran into financial difficulties and the Hall was sold to the Society of the Sacred Mission in 1903 and run as a theological college.

"[7] A bronze sculpture, known as 'the Kelham Rood', depicting Christ on the Cross accompanied by figures of St John and the Virgin Mary was commissioned from the English sculptor Charles Sargeant Jagger to adorn the chapel in 1927, and was completed in 1929.

Jagger's Kelham Rood sculpture was removed and re-erected at Willen Priory in Milton Keynes, where it stood in the garden until 2003 when it underwent restoration and was moved to the Church of St John the Divine, Kennington, in London.

[16] By June 2020, however, another news source stated that the building was "ready to be used as a 103-bed hotel and spa with full planning consent to do so".

[19][20][21] In 1865 Gilbert Scott reused many of the design details of Kelham Hall on a much larger scale for the façade of the Midland Grand Hotel at St Pancras railway station in London, completed in 1876.