The impact of contractual and relational governance elements on the objectives within Bouwstroom initiatives
T.J.A. Jenniskens (TU Delft - Architecture and the Built Environment)
Ad Straub – Mentor (TU Delft - Design & Construction Management)
G.A. van Bortel – Mentor (TU Delft - Real Estate Management)
U.D. Hackauf – Graduation committee member (TU Delft - Environmental Technology and Design)
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Abstract
This thesis investigates how contractual and relational governance elements can improve the performance of Bouwstroom initiatives, which are construction programs aimed at accelerating and reducing the cost of new housing construction through standardized housing concepts, collective procurement, and closer collaboration between housing associations and contracted parties. Traditional project based delivery models often lack the coordination and continuity required to meet these complex challenges, prompting interest in more integrated, programmatic approaches. Using a comparative case study of WoonST 2.0 and NH Bouwstroom, this research analyzes contractual documents and stakeholder interviews through a deductive governance framework. The findings highlight governance practices that influence lead time and cost outcomes, with the most critical being the level of standardization, purchasing and capacity guarantees, and the involvement of municipalities. While the study offers both practical and theoretical contributions to construction governance, its conclusions are limited by the focus on two cases and the evolving nature of these initiatives. The research emphasizes the importance of context specific governance strategies and recommends further research across a broader range of cases and objectives, including innovation and sustainability.