London: JK Rowling has decided to get 40ft high, two-storey Hogwarts-style tree houses built for her two youngest children in the back garden of her Edinburgh mansion.
The Hogwarts-style towers, which have been estimated to cost around 150,000 pounds, are so big that they need planning permission, the Daily Mail reported.
Each wooden tree house is to be built on stilts and boasts balconies, carvings and turrets that wouldn’t look out of place in a Potter adventure.
The towers are linked by a rope bridge and can be approached by a secret tunnel hidden underneath a raised wooden walkway.
Plans lodged with the City of Edinburgh Council reveal the houses are intended for Miss Rowling’s two youngest children David, nine, and his sister Mackenzie, seven.
Meanwhile ‘Kenzie’s Tree House’ has its own spiral staircase and a stainless steel playground slide leading to a double set of swings.
A wooden walkway connected to the giant structure leads to a giant trampoline deck that is shielded from public view by a row of extra tall conifers.
The design by the luxury tree house makers Blue Forest UK features cedar shingle roofs and a built in ‘nature box’ for birds to nest in.
The 46-year-old novelist lives in her 17th century mansion with her husband Dr Neil Murray, their two young children and her 18-year-old daughter Jessica, from her first marriage.
Her houses will only be built with timber from sustainably managed forests.
Rowling bought the mansion for more than 2 million pounds in 2009 when she reportedly fell in love with it after viewing just two of its 31 rooms.