To give you a little more help here are the last ten valuations entered by other people. Remember the value you're looking for is the hammer price if this Belgravia property had been placed at auction during August 2009.

• £ 3,166,666.66
• £ 3,166,665.66
• £ 4,177,777.71
• £ 3,345,666.60
• £ 3,754,567.00
• £ 3,999,950.00
• £ 4,333,000.00
• £ 4,090,000.00
• £ 3,896,201.45
• £ 4,105,963.25