An archaeological watching brief took place during conservation work (which included the underpinning of parts of the structures) on the summerhouse and the rotunda in the Upper Castle Park, Colchester. This involved the contractors hand-digging narrow trenches alongside the existing structures and then undercutting the structures by approximately 0.5m. The trenches were subsequently shuttered and filled with concrete. No significant Roman or Norman remains were identified, although a quantity of finds was recovered (including many fragments of Roman brick and tile). Post-medieval deposits included a brick feature (0.45m bgl) pre-dating the summerhouse, possibly an earlier 18th century feature constructed on the rampart). <1>