Construction product platforms provide the opportunity to improve productivity in construction projects while maintaining heterogeneity of output. The growing literature on construction product platforms describes how product suppliers develop product platforms either top-down or bottom-up, independently from project delivery. Through a single case study of a consultancy firm, this paper shows how a specialist consultancy firm operating in the construction sector developed their own product platform on projects while iteratively developing and augmenting their delivery capabilities. Distinguishing between activity integration, coordination, and consolidation, the platform development process highlights how vertical and horizontal consolidation of capabilities within the engineering phase of delivery enables early resolution of both product and process specifications. This means that vertical coordination between engineering and manufacturing phases can be managed by a fully specified contract, rather than acquisition. The analysis of the case shows how construction can be more closely aligned with the linear and sequential models found in manufacturing through clarifying and distinguishing the roles of engineering, manufacturing, finishing and sub-assembly.

The rapid growth in demand for large-scale infrastructure around the world calls for a new type of organisation, which we label the Megaproject-based Firm (MBF). We conceptualise the MBF as a core permanent entity that delivers multiple megaprojects with partners in project networks, in several large temporary organisations crossing the boundaries of the firm. We use 78 interviews to identify how the learning within and between these megaprojects has enabled the firm to build programme management capabilities over time. Our results show that adaptability, flexibility, and the design of the roles and responsibilities between clients and delivery partners are critical ingredients of programme management. Megaprojects should be delivered through a collaborative relationship with clients, not for clients. The involvement in a series of megaprojects in parallel and sequentially offers a new type of project capability building challenge for firms, adding to the literature on project-based firms and project capabilities.