Here's what a £30 million house on London's 'Billionaires Row' looks like on the inside

Celia Sawyer is a professional businesswoman and interior decorator who remodels expensive houses for the ultra-wealthy, many worth upwards of £10 million ($15 million), through her Channel 4 show "Four Rooms."

One house that the London native worked on is called "Fairways" and right now it's on the market for upwards of £30 million ($46 million), according to Glentree. The property is located on "Billionaires Row" in The Bishops Avenue, one of London's most expensive addresses.

The house measures over 17,000 square feet with eight bedroom suites, an underground leisure complex, a gigantic swimming pool, and a cinema room. As if that wasn't enough, the garden measures a further 775 square feet with staff quarters (including security posts) and a garage that can house up to four cars.

Here is what a £30 million house on "Billionaires Row" looks like.