Fraser Bond are the leading lettings and property management agents for 1 Great St Helen's - London EC3A. 1 Great St Helen's is an office building in the City of London EC3. The freehold building occupies a 0.17-acre virtual island site in the City’s ‘Eastern Tower Cluster’. The property comprises 51,311 sq ft of office accommodation arranged over basement, lower ground, ground and nine upper floors. 2020 - 1 Great St Helens was acquired from State Street Bank by a private Spanish Investor for £50.7m, reflecting a net initial yield of 5.54% and a capital value of £988 per sq ft. The building.