Return the largest value from multiple points inside a polygon

Hi

I have a polygon dataset of buildings, each of these buildings has multiple points located inside, each with varying values of height. I am trying to find the largest value from all points inside each polygon, then attach this somehow to my building polygon feature.

Anyone got any ideas on how this can be achieved?

Attached is a graphical idea of what I am talking about just incase I haven't explained it very well!

Thanks

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