Fraser Bond are the leading lettings and property management agents for The Chancery Rosewood - London W1A. The Chancery Rosewood hotel at 30 Grosvenor Square is a redevelopment of the Grade II listed US Embassy building in Mayfair, London W1. The new The Chancery Rosewood will contain 137 guest rooms, 5 restaurants, 6 flagship retail units, a spa and a 1,000 person ballroom. The new hotel is designed by Sir David Chipperfield, retaining the unique external façade whilst integrating a new hotel, retail, spa and event space. The historic facades designed by Eero Saarinen on Grosvenor Square, Upper.