Kent architecture

The mega mansion could become Britain’s biggest new home

A plot with planning permission to create Britain’s biggest new home has been put on the market for £20m – but could be worth over £100m once built.

The extravagant 68,000-foot mega mansion, St John’s House, will feature more than 80 bedrooms and the floor space equivalent to more than 60 average family homes.

It is currently just 60 acres of private parkland with a large stone barn on the edge of the village of Ramsden in Oxfordshire.

But the proposed estate is the result of nearly 25 years of careful planning and design work by world-renowned architect, Professor Robert Adam.

It will be the largest Palladian house built in the UK for over 100 years.

And it’s now on sale for £20million, although the finished product is estimated to be over FIVE times as much.

A plot in the rolling English countryside is set to be transformed into the UK’s biggest and grandest new home

Plans include a massive master suite taking up the entire top floor, a grand ballroom, and even an underground automobile museum to house 50 exotic engines.

The indoor sports complex will include a swimming pool, gym that overlooks the ballroom, recreation room, prep kitchen, bowling alley and Jacuzzi, sauna and steam room.

The lavish entertainment floor, known as the “Piano Nobile”, includes a formal dining room, music room, formal lounge and games room which overlooks the orangery.

There will also be two guard houses, a free-standing gazebo, a guest lodge and a five-bay garage.

Outside, the estate, facing the Cotswolds, will have landscaped gardens, a tennis court and a second swimming pool.

The land and accompanying property design are sold by Sotheby’s International Realty.

With stunning views of the Cotswolds, 'St Johns House' could one day be a 68,000 square foot mega-home the equivalent size of a 60 family home
With stunning views of the Cotswolds, ‘St Johns House’ could one day be a 68,000 square foot mega-home the equivalent size of a 60 family home

Managing Director Guy Bradshaw said: “This sale offers the opportunity to create a significant and special home which, when built, will be one of the most private and significant homes in the UK.

“It took over 20 years to get full planning approval and we believe it will no longer be possible to build something of this scale in this location.

“If someone were to spend around £50m on construction, they would have installed every conceivable safety feature in the structure and the most spectacular interior finishes.

“It would not only make it the largest new house to be built in the UK for over a hundred years, but also the only one built from scratch.

“Designed by one of the most revered architects of our time, offering views that make you feel like you’re living in a Constable painting.

“When completed, we expect the final value could exceed £100m.”

All main rooms, terraces and gardens are said to have “unsurpassed views of the most spectacular unbroken landscape and Cotswold sunsets”.

The ‘Piano Nobile’ was designed to entertain with ‘exceptional ceiling heights’ and ‘enormous entertaining spaces’.

In addition to this, the ballroom level – inspired by The Great Gatsby – offers a “grand” reception room, a bar, a private cinema, as well as a professional “event” kitchen.

If built to approved plans, St John’s House could be compared to Updown Court, the 15-year-old mansion in Windlesham, Surrey, which is also set in 60 acres but is 25% smaller than the proposed stack in Oxfordshire .