A familiar skyline can change without the people below agreeing to a different horizon.

The view from where you live can be changed permanently by people who do not live there. A building goes up, the light changes, the horizon you had looked at for twenty years is gone, and no process ever asked whether the people below wanted it.

There is not always much to be done about this, and where there is, it happens at the planning stage rather than after. If you care about the physical character of where you live, the boring notice on a lamppost is the moment. After that it is simply the new skyline.