Zac Efron Builds Off-Grid Hemp Home in Australia with Designer Joost Bakker

Hollywood actor Zac Efron is embarking on a groundbreaking project in the Australian hinterlands, constructing an off-grid home almost entirely from industrial hemp. The initiative, dubbed FutureCave, is being developed in collaboration with environmental designer Joost Bakker and aims to showcase the full potential of hemp-based construction. According to High Times, the property, located near the border of New South Wales and Queensland, covers 128 hectares of pristine land featuring rainforests, waterfalls, and ancient cedar trees

The FutureCave project stands out for its comprehensive use of hemp, not only in structural elements like walls and insulation but also in interior components such as mattresses, textiles, and even potential appliance parts. The home will feature six bedroom pods linked by outdoor walkways, each with a private bathroom and rooftop garden, and a large communal living area. Bakker and Efron are pushing the boundaries of sustainable design by incorporating a green roof capable of holding 100 tons of soil and integrating low-impact materials throughout the build

Hempcrete, the primary material for the build, is a biocomposite made from hemp hurd, lime, and water, celebrated for its breathability and eco-friendly properties. According to Bakker, the team is also experimenting with innovative lime-free hemp blocks using oyster shells as a binder. "We want to use the most cutting-edge technology, invented by the Romans more than 2,000 years ago," Bakker explained, highlighting the project's blend of ancient techniques and modern sustainability goals

The collaboration between Efron and Bakker stems from their connection on the set of the Netflix series Down to Earth, where Efron became inspired by Bakker’s regenerative design philosophy. Efron expressed in interviews that after experiencing Bakker’s spaces, he realized, "this is actually what I want in life." Bakker noted his excitement, sharing on Instagram that designing Efron's first home was an opportunity to fully realize his sustainable architecture concepts and push the limits of natural material use

Despite the enthusiasm, scaling this type of bioconstruction poses challenges. Hempcrete is not a structural material on its own, can be costly upfront, and requires specialized labor and infrastructure that is still developing in Australia. However, Efron's high-profile commitment is expected to bring much-needed visibility to industrial hemp in architecture, potentially accelerating regulatory and market developments for sustainable building materials

OG Lab notes that FutureCave is more than a celebrity project—it is a test case for mainstreaming hemp in modern construction. As the home takes shape, it will be important to watch how supply chains, regulations, and public perception adapt to this innovative approach, potentially paving the way for broader adoption of hemp-based building technologies