This paper develops an approach for the satisfaction of the Solar Control Box constraints. This is the volume conditioned by both the Solar Envelope rules and the Shading Envelope rules. The Solar Envelope defines the largest volume that does not cast its shadows on neighboring buildings during winter beneficial periods of sunshine. The Shading Envelope is the lowest volume to shade the neighboring buildings during summer overheating periods. The Solar Envelope and the Shading Envelope are respectively a maximal and a minimal limit of the Solar Control Box. This volume will serve as a medium to assist planners in drafting morphological urban rules of solar control. Our purpose here is to respond to the question: To what extent it would be possible to generate a volume respecting the two types of constraints (solar access and shading needs)?