On May 17, Sweetwater House (the home of JCB Principal Chris Botterill) will open for Sustainable House Day, a national event where people across Australia open their doors to share how their homes work — what they’ve built, what they’ve changed, and what they’ve learned.

Showcasing homes that feature innovative approaches to energy efficiency, electrification, passive design, materials and climate resilience, homes on the program include architect-designed builds, retrofits, all-electric upgrades, efficient apartments and climate-resilient homes.

It’s a chance to talk directly with homeowners about what their homes cost, what’s worked, what hasn’t, what they’d do differently. Tickets cost $15 and enable you to book and visit multiple homes and access follow-up learning and expert sessions.