QUICK LUNCH OLDS SECRETS

Billionaires aiming to set down their designer-clad roots in London are spoilt for choice. Silicon Valley bros are snapping up residence in Notting Hill and Grosvenor Square, when The Holme, a rural mega-mansion in the middle of London, is on the marketplace for £250 million (that may necessarily mean, at The purpose of sale, It'll be the costlies