Originally, historians believed that Edward's decision to rebuild much of the castle was in response to the growing tensions with France; in this version of events, Hadleigh would have formed an important coastal fortification along the Thames estuary, protecting it from French raids. Current historical opinion plays down this motivation, noting that at the time of the work on Hadleigh relations with France were unusually good. Instead, it is suspected that the increasing elderly Edward intended Hadleigh more as a personal retreat close to London, where he could stay in privacy and considerable comfort. Whilst the entrance on the inland side remained relatively basic, the building work created a grander impression from the estuary – any visitors to London, English or French, would have passed by Queenborough Castle on the south bank and Hadleigh on the north, the combination communicating a strong sense of royal power.