This Irish Cottage treehouse built by Nelson Treehouse and Supply in Huntington, California, has a fireside lounge with contemporary furnishings.
Both Nelson and O2 provide treehouse consultations, construction and installation in the U.S. and abroad. The process typically takes between two days and nine months, depending on the size and complexity of the project.
“If you want installation, we quote on a custom basis because every tree is different,” Feider explained. His custom structures normally cost between $35,000 and $100,000. Treehouses built by Nelson Treehouse and Supply typically fall in the $80,000-$200,000 range, but their prices also vary depending on the project.