One of the designs which would be between mountain and lake was a modern, triangular-shaped tiny house, that was two-floored with all amenities.
The second one was on the left of the Lake, Cylindrical-shaped tree houses whose walls would be made of glass which would give a good view of nature around with two stories.
Towards the right of the lake, An employee designed treehouses would look like a weaving bird nest. They also had two stories but this would give the higher experience of nature than the first two.
Their first aim of the design was to avoid cutting trees which were well maintained in three designs. Harley's construction team was capable of building two designs that are modern tiny house and cylindrical shaped treehouse. For weaved nest design, they invited a team from country C.
Weaving bird nest treehouse had to be built and test them under artificial weather conditions. The other two could withhold all conditions.
