Fraser Bond are the leading lettings and property management agents for Walsingham House - London EC3N. Walsingham House is an office building in the City of London EC3. Redeveloped in 2018. The interior structure of the building was demolished while retaining the Portland stone façade. New piled foundations will enable the construction of a steel frame structure, adding two additional floors to the existing eight-storey building and creating nearly 50 per cent more internal office space to provide a net internal area (or NIA) of 65,000 sq ft. The retained façade was cleaned and restored, and to.