Marcol House Marylebone W1G Timeline News and progress updates from Marcol House new development in Marylebone W1G Post a new milestone New photos! 11/12/2012 by Buildington Great Portland Estates plc (“GPE”) announces that, following the pre-let of the majority of the office space at its redevelopment of 33 Margaret Street, W1 to Savills... 26/03/2012 by Buildington New in Buildington - commercial development with 13,500 sq ft of offices. Savills has pre-let 5,945m2 and will move its West End teams, currently based at offices in... 15/02/2012 by Buildington