Once a sleepy haven of rolling hills and honey-coloured stone villages, the Cotswolds has become the ultimate millionaires' playground.

Celebrities have arrived in their droves, with everyone from the Beckhams and Simon Cowell to US chat show host Ellen DeGeneres now calling it home.

This influx of superstars has seen property prices soar - with a simple three-bedroom house in the OX7 postcode now fetching at least £2.5million.

The question on everyone's lips is where in the Cotswolds is the next prime time piece of real estate.

James Walker is a regional chief in Knight Frank's country department. He told the Daily Mail: 'The ''Golden Triangle'' of the prime Cotswolds as defined by some is roughly located between Burford, Stow on the Wold and Chipping Norton.