What does Grade HM mean?
Buildings, structures or groups of buildings not originally intended for residential, commercial or administrative purposes but as defensive structures, monuments, outbuildings or other ancillary structures. This category also includes buildings that have become significant ruins.
Their aesthetic value may be modest, but their historical significance and structural interest make them of vital importance to Bermuda. They are integral to both the Island’s history and to its cultural tourism.
Alteration should be avoided and restoration should be on a like-for-like basis.