Hertford House Marylebone W1U Timeline News and progress updates from Hertford House new development in Marylebone W1U Post a new milestone The Wallace Collection has chosen Paragon to refurbish the existing rooms to form new gallery and exhibition space. The Wallace Collection recently secured funding to... 27/02/2018 by Buildington Planning permission granted for: Demolition of roof above the Great Gallery and creation of new mansard roof, and installation of solar PV panels. Source:... 14/07/2012 by Buildington New planning application received by Westminster City Council - Removal of existing modern roof coverings, structure and services retaining the main arched trusses and... 22/03/2012 by Buildington Purcell Miller Tritton has won a competition to refurbish the Great Gallery at the Wallace... 18/08/2011