As a building design progresses through the planning process, increasingly more aspects of the design become fixed. Accordingly, the opportunity for building LCA to guide the design towards lower environmental impacts reduces. Therefore, more credits are available for building LCA submission before an application for planning consent which includes external material or product specifications.
An application for Outline Planning Consent, submitted very early in a project may not include details of the external appearance. In such cases, a ‘Concept Design’ stage LCA submission is not necessarily precluded.
An application for Full Planning Consent will normally include external material/product specifications. In such cases, to demonstrate compliance with this Issue, the LCA submission must be made beforehand.
According to the RIBA Plan of Work, “Planning applications are typically made using the Stage 3 [Developed Design] output”.