To build a treehouse, you normally need nails or screws, a hammer, and planks of wood.

But Penda, a Beijing-based architecture firm, has designed a treehouse that doesn't use any of those things. It would only require rope and rods of bamboo. 

The design concept recently won second place in the architecture design category at the 2016 A'Design Awards.

Penda hasn't built the treehouse yet, but it prototyped a small model of the modular bamboo system in 2015. The team calls the design 'Rising Canes', since layers of bamboo would stack on top of each other to form the treehouse.

The team hopes to build a larger model outside Beijing by 2023 - one where about 20,000 people could live.