Homes in the most expensive area of England and Wales cost 25 times as much as in the cheapest area, according to the latest Office for National Statistics (ONS) analysis of 2016 property prices. One square metre of floor space – an area the size of a red phone box – costs £19,439 in Kensington and Chelsea, while in Blaenau Gwent in the South Wales valleys, the same amount of space costs £777 - above is the ONS's rundown of the average size of homes in selected EU countries and USA.
In 2016 the average cost of property sold in England and Wales was £2,395 per square metre - 19 of the top 20 most expensive local authority areas are in London, with Kensington and Chelsea, the City of London, Westminster and Camden topping the list. Barking and Dagenham was the least expensive London borough, where homes cost £3,994 per square metre.
Elmbridge in Surrey is the costliest area outside London, while York was the most expensive area in the North of England. South Wales and Lancashire are the cheapest places to buy property. In Blaenau Gwent, Merthyr Tydfil, Neath Port Talbot, Burnley and Hyndburn, homes cost less than £1,000 per square metre.
The average house sold in England and Wales in 2016 had a floor area of 104 metres squared. Flats averaged 49 metres squared (excluding bathrooms, corridors, hallways and landings).
Taking flats and houses together, the average size of properties sold in England and Wales in 2016 was 90 metres squared – smaller than the EU average, much smaller than new homes in the United States.
New properties are a lot bigger than existing ones: in 2016, the average new house sold was 13% bigger than the average existing house, while the average new flat was 17% bigger than the average existing flat. In the last three years, new flats in England and Wales have increased in size by 8.5 metres squared.