I'm slightly confused by this & wondered if zoopla over-estimates house prices. But they're a little out of date, usually by about a month or so. Its UK House Price Index gives average house prices by country and region, breaking them down into different property types. We had an estate agent round for a valuation and he priced the house at at the same price as zoopla. Compare the house prices of similar properties for sale. I understand that this is an estimate, and is based on the house price index data uploaded by the government and also I appreciate that it is not that accurate. 2. But they're a little out of date, usually by about a month or so. We compare current advertised house prices of properties for sale that are similar to yours on the Rightmove ‘homes for sale’ section, or Zoopla, to estimate the value of your property which gives a good indication of how much your house is worth. 1. One of the tools that I have looked at, but not relied on, has been the Zoopla property price estimate. I'm quite surprised at this as the zoopla price was based on what we paid/original size of the house. (This may be old news to some) Whilst browsing Zoopla I found this house: House Zoopla has functionality whereby it gives an estimate of what a house is worth, presumably based on the last sale price recorded at the land registry and then adjusted by the national average change in house prices. TIA Our top 10 list of free online property valuation tools (UK House Price Calculators) to get an accurate home valuation, from Zoopla to the Land Registry.