Fraser Bond are the leading lettings and property management agents for 50 Marshall Street - London W1F. 50 Marshall Street is an office development in Soho, London W1. Brand new offices on 5 floors above ground floor retail space. Previously known as Eagle House. 2018 December - Planning permission granted for: Demolition of rear glazed pitched roof and erection of rear extensions at third and fourth floors, extension at fifth floor and new fifth floor terrace, all for office purposes (Class B1). Replacement of existing mansard roofs and alterations at roof level including installation of plant.