Date,Address,Postcode,Price,Type,Ownership,NewBuild,SaleType 2019-11-20,"Basement Premises, 7 - 9 Swallow Street, London",W1B 4DE,1000000,Other,"Leasehold",No,Non-standard 2017-03-06,"Basement Premises, 7 - 9 Swallow Street, London",W1B 4DE,750000,Other,"Leasehold",No,Non-standard