House builders are gagging for your money. Any money. If you consider house prices have dropped 15%+ so far from the 2007 peak. The common concensus is a further 15% to go. I believe it will fall 10% further considering how ****ed the UKPLC is. So your flat; offer 90k, take it or leave it. They will come back with 100kish, then you should settle for 93.