Louvre Buildings Marylebone W1B Timeline News and progress updates from Louvre Buildings new development in Marylebone W1B Post a new milestone Planning permission granted for use of the second, third, fourth, fifth and sixth floors for retail purposes (Class A1). External alterations including alterations to the... 06/02/2012 by Buildington New in Buildington! 07/10/2011 by Buildington