Riverside Arts Centre Thameside Kitchen

The Riverside Arts Centre, formerly known as the Assembly Rooms, is a building from around 1840 located in Sunbury-on-Thames. It features a combination of dun and brown brick on a rendered plinth, with a wooden shop front on the left side of the ground floor. The building has rendered dressings and slate roofs that are obscured by parapets.

On the left side, the Thameside Kitchen section is two storeys high and has stacks at both ends, along with a moulded eaves cornice beneath the rendered parapet. The first floor has two tripartite windows with rendered architrave surrounds, square mullions, and eight panes in the center light. Each window is topped with a hood mould that has palmette end scroll brackets, and there are moulded sills below. The ground floor features a wooden shop front with paired end pilaster pier strips on a common plinth and moulded caps. There are three-light, thin-mullioned fixed plate-glass shop windows on either side of the ¾-glazed paired doors, which are set in a canted-side recess.

To the right is the Riverside Arts Centre, which is set back and has restored brickwork, a moulded eaves cornice, and a pantiled top. The first floor has a narrow eight-pane glazing-bar sash window on the left, which is under a hood mould supported by scroll palmettes and has a sill on brackets below. To the right, there is a tripartite sash window with a similar hood and sill. The ground floor features a square bay window on the right, which has 19th or 20th-century glazing-bar sashes in architrave surrounds and moulded sills on corbels. There are double doors to the left of center that are panelled and half-glazed, topped with a transom light and a gauged brick head. The entrance is accentuated by a Doric pier portico with pedestals below and a flat roof above.