THE BEST SIDE OF 52 AVENUE

Billionaires planning to set down their designer-clad roots in London are spoilt for choice. Silicon Valley bros are snapping up home in Notting Hill and Grosvenor Sq., though The Holme, a rural mega-mansion in the midst of London, is on the market for £250 million (which is able to suggest, at The purpose of sale, it will be the most expensive at