Horsham Enterprise Park is approximately 1.3 kilometres north east of Horsham Town Centre. The site is approximately 7.5 hectares (roughly equivalent to 300 tennis courts) and was formerly occupied by Novartis Pharmaceuticals. The site is triangular in shape, bounded by Wimblehurst Road and Parsonage Road to the west and north. The south western and east boundaries are defined by rail lines linking with Horsham Station. Access to the site is currently provided from Parsonage Road and Wimblehurst Road.
The site itself was formerly made up of various office blocks, laboratories and workshops as part of Novartis' operations. Novartis shut down in 2014 and the County Council acquired the site in 2016. It is now vacant and most of the buildings have been demolished.
There are plans to retain a distinctive 1930s building that was used for offices and was extended in the 1960s and 1980s. This building and extensions are known as Buildings 3 and 36. The central structure is locally listed, due to its Art Deco style and striking central tower.
Some landscaping features can still be seen, most notably the attractive avenue of nine mature Cedar trees leading from the Wimblehurst Road entrance. This historically served as the main entrance to the site and leads to Building 3.
The site surroundings are predominantly residential, with housing to the north and west, and commercial towards the east. There is a general industrial area located over the adjoining railway line. To the south of the railway line, there is a mixture of housing, retail and light industrial uses, as well as the College of Richard Collyer.