According to the Daily Mail:
Extract from Simon Walters www.dailymail.co.uk
He told aides of his worries in crisis meetings on how to pay for his fiancee’s refurbishment.
A source said the Cabinet Office had asked Conservative chiefs if party HQ has paid for some of the work – but failed to get an answer.
The Prime Minister faced further trouble last night over claims that Whitehall ethics chiefs have refused to approve his secret bid to help raise funds for the makeover by setting up a ‘Downing Street charity’.
According to Tatler, the main living area of the flat has been painted deep green and is often lit by candles.