The treehouses were very important to the forest elves. Walker had also been very amazed when he first saw them.
The methods in which they grew these things over years with their magic fueling their direction was a craft all within its own right. Besides that, there was the fact that more and more chances to adjust them came as the tree itself grew.
It was why the forest elves' oldest treehouses were very high up and spanned multiple trees being larger and larger. The grand hall that the forest elf queen primarily lived in and held court in was also an example of this since it was very large. That tree being one of the oldest in the entire forest.
However, Walker knew that the elves had split causing them to value different houses over the years.
