Erecting A Fence Neighbours Erecting Fence Which Will Block View Of Valley.?

Neighbours erecting fence which will block view of valley.? - erecting a fence

The owner of a property under our house on one side of the valley is to erect a fence on land is our home. The fence will be 5 to 6 meters high and the edges of a road that belongs to us and our neighbors. The fence is about 8 meters from our house. The country must be built and has been used increasingly in the rough in the last 9 years. The closure will be reduced dramatically our view of the valley and to the disadvantage of a possible transfer of ownership.
Are we reduced to the level of the fence with the title?
Or other rights in relation to this problem?