Over the years the definition of cultural heritage has evolved.
The "country' is recognised as the focal point of identification of the people living in the area.
So people moving into the area are encouraged to identify with this "country" rather than where they came from. This has led to the home losing its old fashioned concept of identity. This means there is little concern at moving from one house to another as circumstances change.
Cultural heritage as a history is carefully collected, but long ago it was realised that it was difficult to know how the people related to the country 2000 to 5000 years ago.
The changing climate together with the complete clearing of the land in the nineteenth and early twentieth century makes it difficult to identify what the land used to look like and how it was used.