Fraser Bond are the leading lettings and property management agents for EDGE London Bridge - London SE1. EDGE London Bridge is a planned office development on the site of Becket House on St Thomas Street in London SE1. 60 St Thomas Street from the Dutch developer EDGE will be the UK’s first high rise building designed to achieve BREEAM Outstanding and a WELL Platinum certification. The 26-storey 255,000 sq ft (23,500 sq m) office building is designed by Pilbrow & Partners. Sustainability Features - Ground and Air Source Heat Pumps - Highly efficient external envelope integrating shading and.