The UK's largest property website, Rightmove on Tuesday released their 10 most viewed properties of 2016.

At the top of the list was a Grade II-listed townhouse in Belgravia, fending off competition from a private island fortress and Harry Potter's house.

London's most expensive home features a roof terrace, winter garden, and swimming pool in the basement.

The 10,516-square-foot home is spread over four floors, with a convenient passenger lift for easy access among the house's seven bedrooms, six bathrooms, and three reception rooms.

Take a look inside the multimillion-pound property below:

Chloe Pantazi contributed the original reporting to this article.

Welcome to Eaton Square, a row of townhouses in Belgravia, one of the most prestigious areas of London. The Grade II-listed property is also close to the neighbourhoods of Knightsbridge, Sloane Square, and Chelsea.

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The living room oozes opulence, with a gold chandelier, plush furniture, and ornate ceiling decorations. Natural light pours through the large windows and door, which leads to a plant-lined balcony.

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The kitchen and breakfast room have a modern, clean feel with marble countertops and sleek appliances, while the silver chandelier adds a touch of glamour.

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The dining room is a more austere space, decorated in dark, dramatic colours. With a beautifully designed ceiling above a large table, the room is the perfect setting for an animated dinner party.

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Arguably the most impressive part of the house is the basement, where a gorgeous swimming pool runs the length of the room.

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One of the house's seven bedrooms — this grand room features a walk-in dressing room, as well as plenty of storage space.

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And this bathroom — one of six in total — has a free-standing bathtub with a view out of the window, and two sinks, as well as marble-covered floors, walls, and counters.

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There's also an indoor "winter garden," which is dotted with plants that give it an airy feel, while natural light fills the space from the glass-top retractable roof.

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