[3] It was acquired by Sir Charles Decimus Crosley, a former Sheriff of London from the Steuart family in 1859.

[5] The ill-fated Sunningdale Agreement on power-sharing in Northern Ireland was signed in Northcote House on 9 December 1973.

[6] The Civil Service College evolved to become the National School of Government, which provided training, organisational development and consultancy courses for UK civil servants and private individual learners until its closure in March 2012.

[7] In March 2015, the College of Policing opened an office in the Albert Day building.

[9] In grounds of 65 acres (26 ha) there is a Grade II listed neo-Georgian mansion called Northcote House, which was built in 1930, and in which notable features include the grand staircase and front portico.