How does an estate agent value a property? What do they base it on? I only ask as we have seen a lovely house for sale ( if we won the lottery) but have checked the previous sold price and seen that it is currently on market for £80,000 more than it was sold for in April 2011. No extension, re decorating that I can see on details so I genuinely wondered how estate agents arrive at the prices they do. Please can someone, perhaps someone in the business, explain how it is done?? thanks