According to the Daily Express reports “the playhouse equipped with running water, electricity, a fully-functioning kitchen and bathroom and even a living room and bedroom”.
The Queen and her sister Princess Margaret are said to have spent much of their childhood playing in the impressive Wendy House. Having grown up in the Royal Lodge herself, Princess Beatrice also played in the cottage.
Speaking on the documentary The Diamond Queen, she said: “Granny and her sister played here growing up and we’ve been lucky enough to play here with cousins and second cousins and it’s a big family treat.”
Princess Beatrice admitted it is the “most glamorous Wendy House ever”.
She revealed how the Queen had a “very clear” message on how she wanted her playhouse to be re-designed.
Princess Beatrice described how the house has now been “completely rethatched” and has “new curtains and new wiring”.
She added: “A bit of a spruce up really. All the little china and glass was created especially for the house.”
Speaking about the Queen, Beatrice said: “She still likes to come back and visit.
“Granny was very clear that for all the fabric she wanted very little designs.
“It’s such a little house that she wanted little flowers and patterns. It’s beautiful.
“I’ve been lucky enough to play here and now Granny’s a great-granny, so now the great-grandchildren can enjoy it too.”