https://en.wikipedia.org/wiki/Baron_Hill%2C_Anglesey
I was not expecting the age. OG construction in the 1700s and abandoned since WWII.
In 1939 at the outbreak of World War II, the mansion was requisitioned by the government and used as a temporary housing for Polish soldiers. The Polish soldiers found the home too cold and decided to start a fire within the mansion so they would be moved to new housing accommodations. The fire destroyed a large part of the interior and the soldiers were removed from the house but only to tents on the Baron Hill Estate grounds. The mansion was abandoned afterwards and is still abandoned and derelict to this day