By Andy Silvester “I am pleased that a plan to demolish a family home on Riddlesdown Road, Purley and replace it with a large block of flats has been refused,” tweeted Chris Philp – the Tory MP for Croydon South – yesterday. “New homes are needed but the right place for new flats is Croydon town centre, central London and brownfield sites,” he added. You may have noticed the fairly obvious. As many commentators were only too ready to point out to the minister, the application was for new homes on the very definition of a brownfield site. Chalk another one up not for the NIMBY (‘not in my backy…