Millionaire's row spreads out of London as average cost of homes hits £1million in more than 40 areas Houses now sell for more than a seven-figure sum in 43 neighbourhoods Highest values are found in the capital, or surrounding commuter belt Most expensive is Knightsbridge and Belgravia in London at £4.4m Outside London, homes in Oxshott and Stoke D'Abernon worth £1.4m Land Registry figures analysed by Savills and Property Database Research suggests rising prices are spreading around the country Average house prices in more than 40 areas of the country have soared above the £1million mark, with property hotspots now reaching out of London. In 43 areas of the England and Wales, houses now sell for more than a seven-figure sum, according to a new analysis of sale values. The highest values are all to be found either in the capital or in surrounding commuter belt towns in Surrey, Buckinghamshire and Hertfordshire. Costly: Average house prices in more than 40 areas of the country have soared above the £1million mark, with the highest to be found in Knighstbridge (pictured) and Belgravia On the up: The average house price in Knightsbridge, where Cadogan Place (pictured) is located, has soared 342per cent in the last 10 years However, prices in parts of Oxfordshire have also topped £900,000, while in some parts of Somerset buyers would be hard pushed to find a property for less than £800,000. Average prices in several areas of the Midlands and the North, including Prestbury in Cheshire, Washburn, Harrogate, and Lapworth, Warwick, are also higher than £500,000. Some of the prices featured in the report, compiled by estate agents Savills and analysts Property Database, have also risen at an astonishing rate - in some cases 10 times the national average of 29.7per cent. Home team: Outside of London, average prices are highest in Oxshott and Stoke D'Abernon in Surrey, where Chelsea Football Club train Advantage: The average house prices in Oxshott and Stoke D'Abernon is £1,448,713, with many Chelsea footballers choosing to live in the area According to the report, the most expensive area to live is the London neighbourhood of Knightsbridge and Belgravia, where the average house price has soared 342per cent in the last 10 years to £4.4million, according to The Sunday Telegraph. In neighbouring Brompton, in Kensington and Chelsea, homes have an average value of £2,301,781 - a rise of 140per cent over the last decade. Outside of London, average prices are highest in Oxshott and Stoke D'Abernon in Surrey, at £1,448,713. Exclusive: The average price of a home in St George's Hill, Surrey, is £1,140,281 Gated community: Buying a house in leafy Cobham Fairmile will set buyers back an average of £1,231,726 Housing boom: Property in Virginia water costs an average of £1,163,537. This five-bedroom townhouse was valued at £1.6million The area home to the Chelsea Football Club training ground, with many players and other celebrities buying property in the area. The leafy idyll of Oxshot is home to Elton John, Gary Lineker, Jenson Button and Andy Murray, and residents pay more income tax than any other area of the UK. Average prices in Cobham Fairmile, Virginia Water, St George's Hill and Esher - all in Surrey - Gerrards Cross South and Beaconsfield North in Buckinghamshire, and Moor Park and Eastbury and Ashridge in Hertfordshire have also risen above £1million. Oxshott and Stoke D'Abernon, Surrey Average house price: £1,231,726 Cobham Fairmile, Surrey Average house price: £1,231,726 Virginia Water, Surrey Average house price: £1,163,537 Gerrard's Cross South, Buckinghamshire Average house price: £1,161,422 St George's Hill, Surrey Average house price: £1,140,281 Esher, Surrey Average house price: £1,129,153 Moor Park & Eastbury, Hertfordshire Average house price: £1,109,969 Ashridge, Hertfordshire Average house price: £1,030,250 Beaconsfield North, Buckinghamshire Average house price: £1,021,312 Source: The Sunday Telegraph The report by estate agents Savills and and analysts Property Database will give hope that a house price boom has returned to many areas of the country after the market was hit by recession. And the research has suggested that rising prices in the South East are having a positive knock-on effect in other parts of the country. Further afield, areas of Cornwall, Cumbria and Pembrokeshire have seen average prices double in the last 10 years, showing that economic growth is not restricted to London and the South East alone. The report, The Most Expensive Housing Markets of England and Wales, analysed Land Registry data for last year's house sales in 200 electoral wards across England and Wales, and focused on the 25 most expensive areas in eight regions of the country. 'There are now very real magnets of wealth beyond the capital,' Lucian Cook, the head of research for Savills and the author of the report told The Sunday Telegraph. A lot of areas have yet to feel the London ripple effect, so we expect to see them performing very strongly in the year ahead. We are already seeing this in the inner commuter ring. The Office of Budget Responsibility has predicted that by 2018 house prices will have risen by 27per cent, meaning more areas could see average prices hit the £1million mark. However, concerns have been raised over prices being pushed up by a shortage of houses and fears that rising prices will make life increasingly difficult for first time buyers to get on the property ladder. 'This means there isn't much to buy. It keeps transaction levels down and pushes prices up,' said Mark Hayward, the managing director of the National Association of Estate Agents. Expensive: In the south of Gerrard's Cross, Buckinghamshire, the average house price has soared to £1,161,422