
Treehouse
A treehouse is an elevated wooden structure built in trees, typically used as a playhouse for children or a simple cabin, with professional builds averaging around 50-100 square feet.
Estimated value as of 2026 · Source: https://www.homeadvisor.com/cost/additions-and-remodels/build-treehouse/
Fun Fact
Luxury custom treehouses featured on shows like Treehouse Masters can cost up to $1,000,000, while a basic DIY platform starts at just $400-$500.
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