Bath and Northeast Somerset have adopted an energy-based net zero housing policy. What this entails is that planning permission will only be granted to new developments that generate as much energy as they consume. Furthermore, the construction materials must also cap their emissions at an acceptable level in order to align with net zero. Informed by industry-leading initiatives such as the London Energy Transformation Initiative, the Royal Institute of British Architects, and the Chartered Institute of Building Services Engineers, this policy is set to be groundbreaking and lead the way to more sustainable building practices nationwide. But what exactly is net zero, what is a carbon-neutral home and how can you make your home more energy efficient? This article will look at these different terms in more detail.