Harry Potter bosses have promised to build a forest - in return for being allowed to film their new TV series in William and Kate's garden.

Filming has been kept tightly under wraps for months at Windsor Great Park close to Forest Lodge, which is soon to be the home of the Prince and Princess of Wales.

The production company behind the new Hogwarts show, For All Time Productions Ltd, submitted a planning application to the Royal Borough of Windsor and Maidenhead earlier this year to set up a temporary set in the royal grounds.

But a number of issues were raised by council departments regarding drainage, flooding, protecting historic trees and ensuring the safety of any nesting birds or roosting bats.

Filming had been due to start in January, but to overcome these hitches it was delayed by six months.