Fraser Bond are the leading lettings and property management agents for Leaside Lock - London E3. Leaside Lock is a mixed-use development in Bromley-by-Bow, London E3. The scheme will contain 900 new homes, 50% of which will be affordable housing. The project will also include workspaces, retail and leisure space. History Before the development started, the site comprised two adjoining sites: Access House, a mix of office and warehouse space, and Clock House, a derelict office that is currently being used as a temporary compound for Transport for London as it develops the tube station. 2019.