LONDON, May 8: The table below lists the 10 most expensive cities for prime residential property, according to the Knight Frank Prime International Residential Index published on Tuesday: Rank Location Euros per square metre Pounds per square foot. 1 London 36,800 2,300 2 Monaco 35,000 2,190 3 New York 25,600 1,600 4 Hong Kong 19,700 1,230 5 Tokyo 17,600 1,100 6 Cannes 15,000 940 7 St Tropez 14,900 930 8 Sydney 13,100 820 9 Paris 12,600 790 10 Rome 12,500 780