This documentary follows the transformation of a terraced building in the Welsh Valleys into an eco-friendly, energy self-sufficient home. In clear, accessible language, it details the DIY process—from erecting steelwork, installing hemp insulation, and fitting underfloor heating, to integrating alternative energy sources like solar panels, a small wind turbine, an air-to-water heat pump, and photovoltaic systems. The film offers a practical guide to cutting energy use and embracing sustainable living, making it an inspiring introduction to ecological conversion.