Waterline House W2 Timeline News and progress updates from Waterline House new development in W2 Post a new milestone CBRE Acquires Flagship at Merchant Square, Paddington, for HP Total Care Centre. Hewlett Packard will debut its HP Total Care Centre in the UK after acquiring its... 06/11/2012 by Buildington Shared ownership less than a mile from Marble Arch. Grand Union Apartments at Merchant Square, Paddington Basin offer a rare opportunity to buy a share of new... 23/09/2011 by Buildington Brand new retail space available 4500 sq ft. Small sign on the window also says that the apartments are still available. Agents Knight Frank and Hamptons International. 21/05/2011 by Buildington