I’d just like to point out that the block is, of course, in Battersea, NOT Clapham.
But it might not be the end of it. The developer can still appeal (although I would imagine the chances of a successful appeal are slim) and, of course, they can return with new plans. My guess is the latter, both the Mayor and Council felt it wasn’t a quality application which is a view I imagine the Planning Inspectorate would share. It’s in the developers’ hands though – we just have to wait and see what they do.