Adjacent to Paddington Recreation Ground, there is a charming row of Victorian or Edwardian flats, four stories high, one of which was temporarily rented to our good friends Sam & Pugh. There's another row of identical flats behind these so there's about 500 or so flats in the "development". It seems they are valued at about £1m each (not that much by London standards), which means the whole block is worth about £0.5bn. In Maida Vale, there's roughly 15 similar developments, so that equates to £7.5bn in this small area alone. I'd say Maida Vale is a medium to high value area, so Marylebone, which is just down the road, might have individual values of about 30-50% more (loads of American Film stars are looking to buy places there, like Bradley Pitt and Leonardo Di Maggio), so when accounting for price and size, Marylebone might turn in a gross real estate valuation of £30-50bn. Then, moving further towards the fabled West End, you've got Euston and the prestigious locations of Bloomsbury and Russell Square and the like, going on to the equally swish areas of Holborn and Covent Garden. I'd say in all that lot, there is, maybe, another £40 Trillion worth of property to put in the “pot”. Finally, once you throw in everything South of the River, and especially all those up and coming areas from Battersea out to Barnes in the West, a conservative estimate for the whole lot would be £800 quintillion dilllion quid, give or take the usual tolerances (and, of course, for security reasons, it excludes anything owned by Tony Blair). That’s a big number, that is. Someone pointed out that that figure exceeded all the known money in the Universe, and it was even higher than the number you get when you add all the grains of sand on planet Earth to all the stars in all the galaxies, although, in fairness, as I said to the valuation committee, it’s just my estimate – there are never any guarantees with these types of calculations.