The Museum’s walled garden provides a pleasant area to relax amid lush foliage and scented herbs. Formerly derelict for many years, in 1981 Museum volunteer Sylvia Standing suggested that the area could be improved for use by the public. Miss Hurst, whose family once owned the building, donated a seat. Items from the Museum’s collections displayed in the garden include two local milestones used as a seat, a bronze by John G. Millais, a lead pump, a sundial and a cauldron.

This courtyard was built as a drying yard, originally on the inside of the yard was a drainage channel, but this was covered over in 1993. In the fifteenth century the range of buildings looking over the yard were the kitchens. Later, as the house developed, they became the laundry rooms and so it was that a drying yard was built. The modern toilet block sits on the site of the original ash pit toilet of the house, where the household ash was used to cover sewage and then removed on a regular basis. The yard today contains a selection of signs as well as objects used to make wooden wheels and metal tyre rims from the Pipers forge at Southwater. Look out too for the lead water spout made in 1750.

The barn is an original farm building removed to the Museum in 1983. It houses displays on the Wealden farmer, Sussex trades and transport and garden equipment. The gallery tells the story of farming from the medieval period through to World War II using local examples, including the daily life of the farmer and the social life of the farm worker. Local trades are represented by the collection of shop and business signs, including the famous spectacles that once hung outside Jury Cramp’s shop on West Street.

The Museum holds a notable collection of early bicycles such as a ‘Boneshaker,’ an ‘Ordinary,’ best known as the ‘Penny Farthing,’ and a replica of the celebrated ‘Hen and Chicken,’ or ‘Pentacycle,’ designed by Horsham architect, Edward Burstow. The centrepiece of this display is the 1868 Shand Fire Engine, one of two fire engines used in Horsham in the Victorian era.

The Hurst Room is used for community events and meetings by local societies. The Museum also holds several displays there during the year, mainly pictorial.

The Museum Archive began in the 1890s and grew in importance with the donation in 1950 of the Albery collection of documents. Other smaller collections include papers from the Viscounts Irwin of Hills Place, Horsham and Temple Newsam, Yorshire; a selection of early nineteenth century case papers and letter books from Padwick solicitors; Horsham parish rate and accounts, 1732–1866; and the papers of John Browne, Horsham draper and political radical. Although the Archive building itself is not open to the public, catalogues are available to search and upon request documents can be examined.