By the Iron Age, tribes from the Island had become involved in overseas trade with Britain and areas all over the Roman Empire. Local Island pottery dating from this time is called Vectis Ware, and has been found around the Brook area, confirming that Iron Age people continued to live and farm in the same areas as their Bronze Age ancestors.

In 1948 a well in the form of a column of stonework appeared in the cliff face. The pieces of  pottery found at the bottom established that it had been in use from the first century A.D.

There are a number of Iron Age hill forts on the Island and the earthwork ‘Castle Hill’ on Mottistone Down is thought to have been one of these. The Roman invasion of Britain had less impact on the Island and on Brook than it did on mainland Britain. It is thought that treaties between the Iron Age tribes inhabiting this area and the Romans ensured that an established rural farming life could continue through the Roman period. One enduring legacy of the Romans was their contribution to the diet – they introduced rabbits and apples.