The building at 1 Prospect Hill, later home to a National Westminster Bank branch, is dated to 1861. The NatWest name at this address stems from a long chain of bank mergers: the locally founded Isle of Man Banking Company (registered 1865, later shortened to Isle of Man Bank) was acquired by National Provincial Bank in 1961 while retaining its own Manx board, and National Provincial's 1968 merger with Westminster Bank created NatWest.