This playhouse looks like a cardboard box with cutouts which very cool. The sliver of glass just beneath the roof makes this even more interesting.
Ana White | Build a Indoor Playhouse Modern Bungalow | Free and Easy DIY Project and Furniture Plans
Learn how to build a bungalow playhouse that can be used indoors or out! FREE plans and tutorial at Ana-White.com
Modern Playhouses - concept by Play Modern
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Modern Outdoors Playhouse
Modern outdoor playhouse - I would have LOVED this dream cubby house as a kid!