The Harry Potter creator applied for permission for the 250,000-pound structures as part of renovations at her Edinburgh mansion. Neighbours objected after the plans were put to the city council last month but officials have now given the go-ahead, the Daily Express reported.
The writer’s nine-year-old son and seven-year-old daughter will each get a two-storey house, almost 40ft high, with secret tunnels and bay windows.
Ms Rowling, 46, bought the 17th century, 33-room mansion for just over 2million pounds 2m years ago.
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