Aussie architecture firm Super Colossal has created this cardboard tower-cluster in response to Sydney Design and Decoration’s call for a ‘Sustainable Room.’

Lots of sunlight, plenty of room, and check out the coup de grace from the minds behind it:

Perhaps we could embed the cardboard with seeds and as it slowly disintegrates in the rain and early morning dew, it starts a new growth, planting dense native shrubbery where the cubby house once stood.

Designs for the flatpacked house are available through Super Colossal’s blog. It’s going to be a fun summer.