Thanks guys. Unfortunately I don't have any testing equipment. I understand your reasoning behind going for an unswitched socket - would this be OK? Just to confirm, would it be a standard socket as shown above, but instead of having the standard switch beside the plug, it would have a switch operating the power of this through an isolation switch instead?
Although I cannot test, there are two switches above this countertop, one I know for certain provides power to the dishwasher (far right). I can only assume the one on the far left would be used for the other outlet which currently has a blanking plate fitted.
I'll attach relevant photo
Thanks