it is from a two metre plant that has appeared in the last couple of months at the border of my property
Yes, thats looks like Ivy that is in full flower. Was it covered in Bees.?
When ivy gets mature enough to flower it's leaves change shape and it can get quite bushy.
Definitely common ivy - this is what it looks like right now in an out-of-control area in my garden:
The flowers are a really useful food source for pollinating insects, and the berries are winter life-savers for many wild birds and small mammals, so if it's in a place where it's not doing any damage it's really good to be able to leave it alone for the winter, and cut back in the spring if needed to keep it under control.