Preschool in London (how much, vs, relocating)

[xterra10]

hi folks,

We may be relocating from Singapore to London. We have a 4 year old who's attending pre-school here. Could anyone tell us how does the school system works in the UK . Is there a public preschool (i.e vs private) and how much would this cost? (specifically in London).

thanks

cheers

[Hengist]

Our local pre-school is free for over threes, and like many, has unofficial links to the local primary school where they start at five. This might be important in London where there can be fierce competition for places at good schools. Pretending to be Roman Catholic might also be useful to get into a good school.
UK Schools | Primary, Junior, Secondary Schools & Sixth Forms in UK | UpMyStreet
This site is good for comparing schools by postcode.