We like to think that we're the celebrities' favourite homes and interiors website but now we have proof! (Sort of...)
JK's playhouse is so big that it needs planning permission, but then it does feature two Hogwarts-style turrets, a secret tunnel and is around 40ft high!
If you want to give your garden the celebrity touch but don't have the cash what about a more budget-friendly children's wig-wam? Or perhaps you'd rather spend your money on a more grown up conservatory?
Want more gardening ideas? See our garden channel for outdoor living inspiration. Or if you're more of a homebody we've got some great summer decorating ideas. Don't forget to find us on Facebook and Twitter for the latest homes and interiors news and competitions.