[#item_full_content] Zac Efron is building an off-grid hemp home in Australia, and no, this is not a High School Musical joke. The actor’s FutureCave project uses industrial hemp across walls, insulation, interiors, textiles, and even experimental household components, turning a once-stigmatized plant into a serious case study for sustainable architecture. 
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From High School Musical to High Design: Zac Efron is Building a Hemp Home
ByPot Shop News
June 12, 2026