The problem with Foxtons on Lordship Lane is that they use it as their SE London trading post, so while they have a lot of stuff in the window, most of it isn't local, plus they have a real reputation for overpricing. Your best bet is a local agent that know's the area well as they'll have the best idea on the market and what's right or not. going in with a high price works for some, but it mostly leads to disappointment as it gets your expectatinos up too high and who wouldn't be flattered to hear that their house is worth more than they thought, only for someone to come in with offers a lot lower. Also, if you pay a low commision, expect a low level of service - pay peanuts, get monkeys. I work up in the West End as an analyst for a surveying firm and I can tell you know that these do-it-yourself automated valuation models are a waste of time. They take the average price for a whole street and generate a price as a result. They make no consideration for the types of property on that road, the condition, rooms etc. No land registry data publicises how many rooms ro what work has been done to a place. First thing you learn when training to be a surveyor is that valuation is an art, not a science. you just use science to back up your opinion. The answer is there is no right price, just what the market is willing to pay.