Which phase includes determining the depth of structure for clearances?

In the design development phase, a significant amount of detail and specificity is added to the design concepts established during the previous phases. This includes finalizing structural elements to ensure they meet all necessary requirements for clearances and other functional aspects of the building. Determining the depth of structures for clearances is essential to ensure that the design complies with building codes and standards, and allows for appropriate space for mechanical systems, passage of occupants, and the overall integrity of the building. This phase is focused on refining aspects of the design to ensure that everything is accurately represented before proceeding to construction documentation.

While other phases may also address aspects of clearances, the design development phase is where these details are distinctly outlined and finalized.