Thank you for your response.
I have read the following regarding my rights to light:
The Rights of Light Act 1959 states that if a Property has received daylight for the last 20 years (the minimum prescribed period), they may be entitled to continue to receive that light. This means that if your neighbour builds a large fence or there are large trees which restrict the daylight your Property receives (for example by blocking daylight reaching a window), you may be able to apply to the courts for your daylight to be restored, or for any injunction to prevent a proposed fence being built.
What do you make of this?
I have also read the following regarding my (limited) rights to a view:
The one exception is that the neighbour cannot deliberately block yourview with a structure that has no use to your neighbour. For example, your neighbour cannot put up a billboard, as it serves no reasonable purpose but to block your view.