The urgency of the energy transition is in conflict with delaying effects and options that are not optimally used in the complex, multi-stage German planning system. This also applies to the law and procedures of spatial planning, as well as the interaction of spatial planning with construction planning and sectoral law. Here, fundamental reform options have not yet been exhausted, despite many current legislative projects. Some procedural steps and options for legislative deviations can be eliminated altogether, the interaction of planning and decision-making levels can be made more effective, and subject-related certain hierarchical levels in the planning system could be omitted on a topic-specific basis. Based on a brief analysis of the initial situation for spatial planning, this paper first provides corresponding general considerations on such far-reaching acceleration options and their consequences. This is followed by the presentation of numerous specific spatial planning-related optimisation options. [ABSTRACT FROM AUTHOR]