More than half a million people in Britain are now estimated to be “property millionaires” - meaning their home is worth at least £1 million, according to a property website.

The total number of property millionaires across Britain now stands at 524,306 according to Zoopla’s property rich list, an 8.3% increase on 2014.

And looking across the whole of the UK, there are now 10,958 streets where the average property price is more than £1 million, two-fifths (43%) of which are located in London, with 121 million pound streets located in Scotland, 17 in Wales and four in Northern Ireland.

The areas outside London with the highest concentrations of £1 million-plus streets are all in Surrey, with Guildford, Leatherhead and Richmond housing 158, 154 and 144 streets respectively, Zoopla said.

At the top end of the market, the findings show there are 13 streets in Britain where the average house price is over £10 million, all of which are in London. Kensington Palace Gardens is ranked as the country’s most expensive street overall, with homes there worth £42.6 million on average.

The Boltons, where one house sold for £51 million this year, takes second place, with average property values standing at £30.3 million. Grosvenor Crescent rounds out the top three, with an average property price of £22.7 million.

Zoopla spokesman Lawrence Hall said: “London continues to be the epicentre of the million-pound property market in Britain, but the Zoopla property rich list reveals a number of high-value property areas outside the capital, particularly in Surrey and Buckinghamshire, that are very attractive to professionals seeking to live outside yet within easy reach of the city and enjoy low crime rates coupled with good schools.”

The findings were taken from Zoopla’s website and more information about property values in different areas can be found at www.zoopla.co.uk/richlist.