Despite London’s struggling real estate market—a result of Brexit uncertainty paired with higher tax rates on expensive homes—the city remains a bastion of wealth that is home to the 20 most affluent streets in Britain, according to a report Monday from Zoopla.

For the 11th consecutive year, Kensington Palace Gardens, a street just steps from the capital’s famed Hyde Park, ranked as Britain’s priciest street, the online real estate portal said.

An average home on the prestigious street costs £32.9 million (US$40.8 million), but property values have declined 7.24% over the past 12 months, equating to a cut of £2.8 million, the report said.

Courtenay Avenue, a street in north London nestled between posh Hampstead Heath and Highgate Golf Club, ranked second with average house prices of £19.5 million.

Third was Grosvenor Crescent in the capital’s Belgravia neighborhood, close to Buckingham Palace. The average cost of a home on the street is £19.06 million, the report said.

Ilchester Place and The Boltons, both in Kensington, rounded out the top five with average property prices of £15.1 million and £14.3 million, respectively.

Each one of the top 20 streets has seen values decline since last year.

“It’s no surprise that it’s the capital that plays host to the U.K.’s most expensive streets but, even to the super-rich, the wealth that can be found among them is mind-blowing,” Laura Howard, consumer expert at Zoopla, said in the report. “Outside of London, it’s exclusive pockets of the well-heeled home counties, such as Kent, Surrey and Hertfordshire that boast the priciest streets.”

The most expensive street outside of the city is Montrose Gardens in the town of Leatherhead, Surrey, where property values average £6.5 million.