Joint venture partners Aviva Investors and Northwood Investors have engaged Savills over a potential sale of the well-known building at 20 Gracechurch Street, EC3. It is understood that Savills was initially tasked with finding a buyer for a 50% interest in the development, which has recently undergone a major refurbishment. However, the owners are now considering an outright sale of the building. A price of £350m would reflect an initial yield of circa 4.5%.