This tree has produced a fruit at last.
The tree was in the garden when we moved in and although it was quite tall and bushy has never had any fruit on it for the 5 years we've been here.
Its lovely and droopy with silvery green leaves and thin branches that reach to the ground.
I had no idea what sort of tree it was but have now identified it due to its little fruit!
I found this info:
Pyrus salicifolia pendula
Also known as Weeping silver pear