The £90 million property is located in London's exclusive MayfairMessila Residential

One of the most expensive homes to ever go on sale in Britain is up for grabs for a whopping £90m.

The 21-bedroom, mid-terrace Mayfair property is one of the grandest homes to be marketed and is expected to be snapped up by a wealthy foreign investor.

Whoever does buy the property, which is walking distance from Hyde Park and Green Park and being sold by Messila Residential, could contribute a massive £6.3m to the Treasury in stamp duty.

But they will have no shortage of luxury at the 19,000sqft home, which has its own swimming pool and sauna and has been completely refurbished to palatial standards with a new glass lift, new leisure facilities and a garden.

Mayfair House
One of the home's 21 bathroomsMessila Residential
Mayfair House reception
The house has seven reception roomsMessila Residential
Mayfair House kitchen
An industrial-sized kitchen is one of the featuresMessila Residential
Mayfair House back
The house even comes with a garden

The property is 25-times more expensive than similar mid-terraces in the area, where the average monthly rental of a property is £6,600.

Located just around the corner from Berkeley Square, the exclusive postcode has, for centuries, been home to the rich and powerful including ex-resident Queen Elizabeth and British Prime Ministers Benjamin Disraeli, Sir Robert Peel and Winston Churchill.

The home is more expensive than Updown Court in Windlesham, Surrey, which was put on the market for £75m six years ago but was eventually seized by a bank after owners defaulted on a £50m mortgage.

Mayfair House pool
Leisure facilties include a swimming poolMessila Residential