Spatial impact of the energy transition is a subject that has not been studied extensively as of now. Developing a spatial plan for a sustainable energy system in an early phase will provide insight in practical and spatial implications that are related to these systems. This is especially relevant in existing neighbourhoods, where the existing context has to be taken into account. Energy potential mapping already connects energy production to a spatial component, but it remains theoretical and abstract, often until a late stage in the planning process. An additional step should be taken to assess the spatial impact of the renewable energy production and the district energy system through concrete design proposals; creating the “toolbox”. These designs are different based on the technology and the context of the project, but it should always seek for ways to minimise its negative impact or to benefit its surroundings. By doing this, the components of the system becomes tangible and a tool to discover synergies, make decisions, and convince stakeholders. This will not only improve the feasibility of the project, but also the quality of the final product.