The Upside Down House is a unique three-bedroom farmhouse in Trundle, NSW, designed in collaboration with Supermanoeuvre. It combines a working farm and a peaceful living environment that blends with the landscape. Designed for thermal efficiency and to capture the landscape views, the house reinterprets rural architecture with a flat roof and undulating ceiling. This provides insulation, and roof space for rainwater and solar collection, adhering to Australian solar passive design principles. The orientation and daylight simulation during design ensure optimal solar benefits and glare control. The interiors focus on thermal comfort and connection to the farm, offering transition areas, insulated bedrooms, and an open-plan living space. Local Cyprus pine was used extensively for its termite resistance and in line with the ancient Japanese technique of Shou Sugi Ban, enhancing the house's external appearance, waterproofing, and fire protection.