The Old Market is a Grade II listed building, sitting between Brunswick Street East and Waterloo Street on the West side in Hove, East Sussex..

The Old Market opened in 1828 as a covered marketplace.

The building was used as a riding academy and stables, warehouse and, since the 1980s, as an arts venue. In 1896 the building was used to garage the cars that competed in the first Brighton Car Rally. Shortly after the turn of the century Thomas Allen took over the riding school and the building has more recently been used as a warehouse and bacon/ham smoking factory.

The archway was listed as Grade II in September 1971. Plans were submitted in 1978 to convert the buildings into an arts centre to commemorate its 150th anniversary, but it was not until 1986 that the buildings and archway were fully restored.

The building was renovated in 1988 by The Old Market Trust and in 2010 further works on the building was undertaken by Yes/No Productions. It is now used for musical performances, theatre productions and other events. In 2011 the building was reopened under the new name of TOM—The Old Market.

Louise Rennison, the well known author of novels for teenage girls gave a donation to start up a garden on the west side of the Arch. The original idea for this garden was spectacular but under Mr Stephen Neiman (Of The Old Market Trust) the original idea for the garden was significantly scaled back and a rather dull and uninspiring number of cement troughs were built.

Under the guidance of Bill Cowell and Peggy Thomas the garden was given a new lease of life by an ambitious planting strategy and the purchase of park benches and attractive pots. WSCG is now maintaining this garden and Mr Bill Cowell founder of EBRA is the sole guardian.  Six olive trees have been planted in the garden over the last 7 years.