the bud formation doesn't like right for either of your suggestions. When the flowers open could you post another photo please.

Maybe Stransvasia davidiana, now classed as Photinia. Lovely!

I too thought, like Karen that it's Photinia davidiana ‘Palette’ and perhaps there are male and female forms which could mean that it isn't self-fertile so no berries.

It looks similar to the one I just posted Julia. Are the leaves small? An inch and a half or so?

Spiraea x vanhouttei 'Pink Ice’. I’m besotted! And it’s funny because I “hate” spireas! Lol

My pleasure. That was so serendipitous that I happened to see one in my neighbour’s garden. I was bowled over by it….so pretty.