An Extensive Renovation Marks a New Era for the Historic Hotel as it Celebrates its 90th Anniversary Bethesda, MD, 2019-May-10 — /Travel PR News/ — JW Marriott, part of Marriott International, today (05/07/2019) announced the culmination of a multi-million dollar full scale renovation to JW Marriott Grosvenor House London. Directed by Hirsch Bedner Associates (HBA)… Read the full press release