Treehouse Designers Guide: Nelson Treehouse and Supply

Pete Nelson creates a spiritual bond with nature every time he builds a treehouse.
A Cedar Vacation Spot

A Cedar Vacation Spot

This stunning, Swiss chalet-style treehouse is one of Nelson Treehouse and Supply's  most requested designs. 

Photo by: Image courtesy of Nelson Treehouse and Supply

Image courtesy of Nelson Treehouse and Supply

This stunning, Swiss chalet-style treehouse is one of Nelson Treehouse and Supply's  most requested designs. 

Owned and operated by Pete Nelson, one of the pioneers of the treehouse revolution, Nelson Treehouse and Supply is a full-service shop that designs and builds custom treehouses. Nelson also co-owns Treehouse Workshop, a company that teaches DIY treehouse builders the craft. "Pete's mission is to get more people into and connected to the trees, both literally and physically," says Jen Alderson, who's in charge of project and business management for the company. "Beyond designing and building he wants to spread the word about responsibly attaching buildings to trees." 

Based in:

Fall City, Washington

In the business since:



For a 200-square-foot treehouse with rustic to modest finish work, the average starting price is often around $60,000. And the sky's literally the limit from there.

Most requested design:

Swiss chalet


Before he sits down to draw a design, Nelson "communes" with the trees. "He walks among them, talks to them and gets a feel for which is most willing to host a treehouse," Alderson says. Nelson also hosts a bark-breaking ceremony before he begins a build, during which he asks permission, thanks the tree and buries garlic at the base of the tree as a symbol of long life.

Wow factor:

The craftsmen at Nelson Treehouse Supply go out of their way to weave pieces of nature into every aspect of the treehouse. "They'll use branches as ladder rungs and balusters, or take a slab of wood and leave the bark on it and make it into a shelf," Alderson says. "They leave things as close as possible to the way they were found instead of cutting off all evidence of nature."

Project locations:

More than 20 states in the United States and eight other countries.

Fun fact:

Not only is Nelson an entrepreneur, designer and builder, he's also an author who's written books including The Treehouse Book and New Treehouses of the World.

Contact info:

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