Bills, Bills, Bills: Superstar duo take out $52.8m mortgage

Grosvenor has just announced a 50:50 joint venture partnership to redevelop a key site opposite the gardens of Buckingham Palace.

It'll cost you five gold bars to buy a house in prime central London these days; five years ago, it would have cost ten.

There's always a bit of give in the measurement of a property's square footage, but where you draw the line can have a huge impact, especially for international buyers who may expect something rather different…