Post medieval windmill, Mersea Road, demolished before c.1875.

Post medieval windmill, Harwich Road.

Roman pits, Medieval robber trench, cultivation plot and metalled surface, recorded during an excavation in 2000.

15th or 16th century house and Inn (demolished).

Medieval Bastion, Town Wall, Vineyard Street.

A small quantity of human bone was found during a watching brief in 2006 for the Castle floodlights bunker, to the south of the Keep.

The remains of a Roman circus were discovered in 2004, during investigations in advance of the residential redevelopment of Colchester Garrison, c.400m south of the walled town. The circus was c.450m long x 75m wide and it consisted of a long, narrow U-shaped arena with evidence of eight starting-gates and a central archway at the square (west) end, and tiered seating-stands (Cavea) around the rest of the circuit. There were passageways through the seating-stands all round the circuit to provide access for the spectators (and there would have been a large archway in the curved end). A central barrier known as a spina ran down the centre, c.239m long.

Roman pit dated to the 2nd and 3rd centuries AD, recorded by evaluation in 2002.

Roman? ditches recorded during evaluation in advance of a new car park in 2006.

Part of a stone structure contemporary with St John's Abbey, likely to have been part of the monastic buildings.