[3][4] Beneath a trapdoor in the centre is the Kings Walk Bastion, the remains of a 1,900 year old Roman city wall and tower.

[4] Eastgate House, an Adamish stone fronted building, was demolished when the shopping centre was developed.

In July 2017, Reef Estates approached Aviva Investments and successfully completed a deal to buy the shopping centre.

[9][10] In March 2018, it was announced that £12 million would be invested to reface the shopping centre and remodel shopfronts in Kings Square and Eastgate Street.

Originally the bastion consisted of a sand and clay rampart with a wooden tower and a defensive ditch.

The fourth century sections of the wall consist of massive blocks of stone with small rectangular holes on the inside where scaffolding would have been set.

[12][13] Archaeologists began investigations in Kings Square in 1934, where they found the corner of a Roman city wall and remains of a medieval tower 2 to 3 metres underground.