April 1 was not just April Fool’s Day but the day Mayor Boris Johnson slapped extra taxes on all planning consents that developers get on or after that date. The new tax could sink some developments in Vauxhall, Nine Elms and Battersea, says the Royal Mail. But Royal Mail, a developer as well as a post-carrier, would say that wouldn’t they? Developers could also use Boris’s new tax to justify asking for their skyscrapers to be even taller and...


