Hi, i must admit i thought it was a hazel at first, not that i know what i'm talking about.
I've also seen some pics of a hibiscus that have very similar leaves, assuming i showed you the right leaf pic lol. there are no other bushy shrubs around it, as you can see from the main pic, so i think i have the right one.

i've been looking at lots of leaves on the net and it does seem more like a shrub than a tree, there are too many variations to be certain though.
thanks