These data are part of the House Price Statistics for Small Areas (HPSSAs) release, produced by ONS. HPSSAs report statistics for a range of national and subnational geographies.
These statistics report the count, median price, mean price and lower quartile price of all dwellings sold and registered in a given period of four consecutive quarters. They are calculated using open data from the Land Registry, a source of comprehensive record level administrative data on property transactions.
For detailed information on aspects of the quality and methodology behind these statistics, see the Quality and Methodology Information document, part of the House Price Statistics for Small Areas release: www.ons.gov.uk/peoplepopulationandcommunity/housing/qmis/housepricestatisticsforsmallareasqmi