Date,Address,Postcode,Price,Type,Ownership,NewBuild,SaleType 2014-05-19,"31 Duke Street, London",W1U 1LG,17500000,Other,"Freehold",No,Non-standard 2014-03-28,"Basement Ground And First Floor Premises, 31 Duke Street, London",W1U 1LG,250000,Other,"Leasehold",No,Non-standard