Club House designed by Xiao Wang
"Cartagena, clubhouse or playhouse. Made of plywood with a heavy cotton rooftop. It takes a minute to install, is not afraid of the outdoors. Design based upon child's first primitive representation of a house."
For more on this amazing flat packed playhouse (and some other really cool products) check out Inidoo.
I know I'm straying a bit from my attempt to focus on indoor play spaces this month, but I couldn't resist these chairs, also by Inidoo. I can imagine an entire playhouse designed around them!