Levels required for selective private/grammar

[DialsMavis]

Hi, I am just pondering really...
What sort of national curriculum levels would be expected in a year 5 child (attends bog standard state school & has never been tutored) if they had any hope of passing 11+/ common entrance exams. I am in London if that matters.
Thanks in Advance

DS1: is that you?

4a at Christmas!!

it's obviously universal yout speak Bee, although it hasn't reached the naice primary down the road where friends DC go