Name changed for this incase anything is identifiable from the picture!
We have some nice grass at the front which gets lots of shade. The front garden has no division from the neighbour’s driveway and I’d love to put up a fence to make it private and useable. The fence would be entirely on our land and not on his property at all, but I don’t think he’d like it.
When we moved in, the fence out the back was a very low, wire fence with no privacy. We put up a 6ft fence (4ft solid and two foot in a nice design with a gaps at the top if that makes sense).
He was not impressed and said neighbour’s didn’t usually put up fences like that in their back gardens 
In general, the neighbour is not very chatty and rarely talks to us, it’s rare we even get a hello when he sees us.
AIBU to put up a fence at the front so we can have some privacy and use the space? I will try and include a picture to show where his driveway meets our garden. The gravel part is his and the grass is our side.