My parents' house is a good example of this. The rear boundary of the property is defined as being some distance from the road. It's not totally clear (although I assume that there is a standard) whether this means the curtilage or something else. When the land behind the property was redeveloped (from a run down witches cottage to a block of flats) it was important to my parents that the treeline at the rear of the property not be cut down. The deciding factor was the rusted remains of an old fence on the far side of the trees. I had been under instructions as a kid to not mess with that or pull it up because my parents knew that it was important to preserve this kind of evidence
