An NZ Roadmap sets the overarching strategy and approach to NZ for a building(s) and/or estate. This is likely to include initial energy and carbon forecasts, potential decarbonisation target deadline and model the relative contribution of individual/integrated decarbonisation options to achieve the target deadline. It is important to note that a Net Zero Carbon Roadmap will need to be updated and refined over time as more knowledge is gained - it will essentially be an iterative process of continual review and improvement.