In this episode, we explore the complex interactions between primary contracts and subcontracts in construction law, with guidance from Julian Bailey's Construction Law. We break down the distinct roles and responsibilities within subcontracting, focusing on the legal implications of assignment and novation, and how they affect parties’ rights and obligations when transferring or modifying contract responsibilities. The episode also covers key principles like waiver and estoppel, explaining how parties’ actions or assurances can impact enforceability and contract terms. This episode is essential for understanding how subcontracting relationships operate, adapt, and resolve within the broader construction contract framework.