London's Kensington and Chelsea is the most expensive place to buy real estate in the UK with half of the most expensive residential streets in the borough. The average price of a property in its Wycombe Square is £5.4 million.

The most expensive street in Scotland is Warriston Crescent in Edinburgh, a row of elegant townhouses next to the Water of Leith, with an average house price of £960,671.

Edinburgh has six of the top ten most expensive streets in Scotland.

In 2010 it was reported that these were the top 20  most expensive streets in England and Wales:

Wycombe Square, Kensington and Chelsea, Greater London, £5,401,447

Ingram Avenue, Hampstead, Greater London, £4,872,500

Cottesmore Gardens, Kensington and Chelsea, Greater London, £4,288,125

Mallord Street, Kensington and Chelsea, £3,864,444

Stormont Road, Highgate, Greater London, £3,375,277

Brunswick Gardens, Kensington and Chelsea, £3,085,590

Bedford Gardens, Kensington and Chelsea, £2,944,388

Sloane Gardens, Kensington and Chelsea, £2,695,125

Parkside, Merton, Greater London, £2,689,562

Paultons Square, Kensington and Chelsea, £2,667,500

Moles Hill, Leatherhead , Surrey, £2,645,000

Duchess Of Bedfords Walk, Kensington and Chelsea, £2,629,447

Arthur Road, Wimbledon , Greater London, £2,578,333

Imperial Wharf , Hammersmith and Fulham, Greater London, £2,578,000

South Road, Weybridge, Surrey, £2,550,625

Leys Road, Leatherhead, £2,549,545

Woodlands Road, West Virginia Water, Surrey, £2,543,500

Hans Place, Kensington and Chelsea, £2,537,515

Halsey Street, Kensington and Chelsea, £2,358,333

Phillippines Shaw, Sevenoaks, Kent, £2,351,538