What is this tree?

Had a bad night and C on early again this morning. Did the ironing and then went out for a long walk whilst the weather was ok. Came back had a coffee and then went to the allotment to do some digging. Had lunch and did some housework. Made a change to sit down and do blip! Not so many good shots today but did see a bumble bee and a ladybird. Went down by the seawall but the tide was out. This tree is over by the common but I'm not sure what it is but think its pretty. Best large.
Hope you enjoyed the weekend whatever you did.