[1] The building, which was originally known as Wisteria House and built in 1725,[2] was converted for use by the Hertfordshire Yeomanry when its headquarters moved from St Albans to Hertford in 1910.

[3][4] The regiment was mobilised at Yeomanry House in August 1914 before being deployed to Gallipoli and, ultimately, to the Western Front.

[5][6] After the Hertfordshire Yeomanry converted to artillery and the Hertfordshire Regiment's drill hall at Port Hill was withdrawn from use, Yeomanry House became the main drill hall in the town.

Following the re-organisation of the Territorial Army in 1967, 5th (Hertfordshire) Company, 5th (Volunteer) Battalion, The Royal Anglian Regiment was formed in Hertford in 1969.

[7] Yeomanry House remains in use as an active Army Reserve Centre.