Boris does not 'believe in selling off playing fields'

We don't believe in selling off playing fields and I think if you look at what we do in London, we have very clear rules that you can't sell off green space, you can't sell off playing fields.

What you can do if you do need to expand a school - and there's huge pressure on school places - you can do that provided you increase the availability of playing fields, so you've got to have new provision of playing fields elsewhere.

Playing fields are absolutely vital for the health and wellbeing of young Londoners. Many schools don't have enough, many parts of inner London simply don't have enough playing space, and it's vital that we conserve what we have.