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Join us for the only organized conference dedicated exclusively to the art and science of treehouse building. For more than 30 years, the Annual World Treehouse Conference has brought together the global treehouse community to share knowledge, exchange ideas, and build lasting connections.
After many successful years at Out’n’About Treesort in Takilma, Oregon, the conference moved to Camp Gallagher in Lakebay, Washington and 2026 marks our second year at this stunning new home. Located just 1.5 hours from Seattle-Tacoma International Airport, Camp Gallagher offers a forested, waterfront setting that feels perfectly suited to our community.
The site accommodates up to 120 attendees and provides an inspiring backdrop for hands-on learning, meaningful conversations, and reconnecting with builders from around the world. If you are bringing your children over 2 years old a kids pass is required to purchase for the event
The Annual World Treehouse Conference attracts an eclectic mix of enthusiasts from around the world:
Professional and amateur builders
Arborists and tree care specialists
Architects and designers
Structural engineers
Net builders and fabricators
Tree climbing professionals
Entrepreneurs and hospitality operators
Educators and environmental advocates
Whether you're a seasoned professional or a passionate hobbyist, you'll find yourself among kindred spirits who understand the unique challenges and joys of treehouse construction.
Share Your Projects: Showcase your latest designs and builds with an appreciative audience
Learn New Techniques: Discover safe building practices that protect both people and trees
Explore Tree Ecosystems: Deepen your understanding of the living structures that support our work
Experience New Technology: Get hands-on with state-of-the-art hardware and climbing equipment
Collaborate: Brainstorm solutions to common challenges with fellow experts
Build Community: Form lasting connections with the most passionate minds in the treehouse world
In the rapidly evolving field of treehouse construction, staying connected is crucial. Our conference recognizes that treehouse building practices are innovative and constantly developing. Together, we advance the field through collective knowledge-sharing and collaboration.
Full conference access - Thursday at 4PM through Sunday at 12PM (October 1st - 4th, 2026)
Workshops, demonstrations, and panel discussions
Saturday Night’s Keynote Speaker - TBD - followed by a special musical act.
Meals & non-alcoholic refreshments
Camping spot from Thursday evening - Sunday morning (October 1st - 4th, 2026)
Space is limited to 120 participants. Early registration is strongly recommended to secure your place.
Join us for the only organized conference dedicated exclusively to the art and science of treehouse building. For more than 30 years, the Annual World Treehouse Conference has brought together the global treehouse community to share knowledge, exchange ideas, and build lasting connections.
After many successful years at Out’n’About Treesort in Takilma, Oregon, the conference moved to Camp Gallagher in Lakebay, Washington and 2026 marks our second year at this stunning new home. Located just 1.5 hours from Seattle-Tacoma International Airport, Camp Gallagher offers a forested, waterfront setting that feels perfectly suited to our community.
The site accommodates up to 120 attendees and provides an inspiring backdrop for hands-on learning, meaningful conversations, and reconnecting with builders from around the world. If you are bringing your children over 2 years old a kids pass is required to purchase for the event
The Annual World Treehouse Conference attracts an eclectic mix of enthusiasts from around the world:
Professional and amateur builders
Arborists and tree care specialists
Architects and designers
Structural engineers
Net builders and fabricators
Tree climbing professionals
Entrepreneurs and hospitality operators
Educators and environmental advocates
Whether you're a seasoned professional or a passionate hobbyist, you'll find yourself among kindred spirits who understand the unique challenges and joys of treehouse construction.
Share Your Projects: Showcase your latest designs and builds with an appreciative audience
Learn New Techniques: Discover safe building practices that protect both people and trees
Explore Tree Ecosystems: Deepen your understanding of the living structures that support our work
Experience New Technology: Get hands-on with state-of-the-art hardware and climbing equipment
Collaborate: Brainstorm solutions to common challenges with fellow experts
Build Community: Form lasting connections with the most passionate minds in the treehouse world
In the rapidly evolving field of treehouse construction, staying connected is crucial. Our conference recognizes that treehouse building practices are innovative and constantly developing. Together, we advance the field through collective knowledge-sharing and collaboration.
Full conference access - Thursday at 4PM through Sunday at 12PM (October 1st - 4th, 2026)
Workshops, demonstrations, and panel discussions
Saturday Night’s Keynote Speaker - TBD - followed by a special musical act.
Meals & non-alcoholic refreshments
Camping spot from Thursday evening - Sunday morning (October 1st - 4th, 2026)
Space is limited to 120 participants. Early registration is strongly recommended to secure your place.