ooh that is intriguing. I don't recognise it. Is it woody? looks like it might be.

Thanks SBG. I added another closeup photo. (I cut )
It looks like some native shrub??? But I have never seen it anywhere else. I could not imagine someone would plant it there.

It looks so much like Magnolia Stellata but in the UK, it wouldn't have flowers and leaves at the same time.

Thank you Jimmy. The flowers are about half size of my magnolia stellata. I never pay attention to it until it blooms I cannot even say if it is evergreen or deciduous

I think it probably is a native. But I would love to know what it is.

The closest I could get it is the Amelanchier arborea SBG.
What do you think?

Yes I think it could well be, the flowers and leaves look right, a self sown gift from the birds perhaps. I had thought it was a nature's gift with it where it was growing.

It is also a native and produces berries.

rhs link for more info if you are interested.

https://www.rhs.org.uk/plants/1059/i-amelanchier-arborea-i/details

I would say Amelanchier too.

Amelanchier alnifolia has flowers and leaves at the same time so I reckon that's it.

The leaves look like Alder too so that name alnifolia would fit nicely.

I am glad that we all ended on Amelanchier . Thank you everyone.