There is a treehouse community. The treehouses are connected by bridges and platforms. The tree houses are on 100-200 feet high sequoia and redwood trees. There are 1-2 houses on each tree if the tree is large enough.
To get onto the treehouses there is a pulley system. When there is a tree that has a base hollowed there is also a home there as well.
To build the tree houses, very strong wood is used. The tree houses holding together is not an issue. The community has other housing on the ground but they have a whole forest of trees and want to use them for homes. Building the treehouse is not a problem. And The community should be able to grow and flourish for many generations. especially since they are very adaptable.
Is it believable for a community to do this in a minimal amount of time?