Today a crumbling wreck, the Baron Hill Estate was once home to a grand country mansion which looked out to the Menai Straight in North Wales. In 1612, MP and the first Mayor of Beaumaris, Sir Richard Bulkeley, gave orders for this lavish mansion to be built however his death in 1621 meant that he never saw the mansion completed.
In the following century, in 1776, the house was reconstructed in a Neo-Palladian style which focussed on concepts of symmetry and perspective with influence from ancient Greek and Roman traditions.
The Williams-Bulkeley family continued to own the site until the First World War, when the Royal Engineers acquired the house. In the Second World War it was used to accommodate Polish soldiers who are thought to have started a fire in the cold building to move to a different site. The fire caused severe damage to the building and it has been left derelict ever since. Plans were submitted in 2008 for the shell to be converted into apartments although nothing changed.
Sources: Wikipedia, WalesOnline