This episode explores the basic stages of a building project, focusing on the pre-construction phases outlined in the RIBA Plan of Work. It covers the initial conceptual stage (Stage 0), developing the project brief (Stage 1), creating the design concept (Stage 2), spatial coordination for planning applications (Stage 3), and developing technical information for construction (Stage 4). The episode emphasises the importance of continually reviewing and refining the project brief, budget, and design throughout these stages to ensure alignment with the client's vision and project feasibility.