Abstract
Quick project delivery makes socio-economic sense as value can be delivered sooner. We investigate two approaches to achieving this; the modular super cube-concept for school buildings and conventional building conducted in series (repetition of design and floor plans between buildings). We study the methods and evaluate the degree of success in quick project delivery, while also looking into sustainability-aspects of the two cases. The identified enablers of speed include clear owner priorities, learning effects and quality assurance at the conceptual level. The enablers of sustainability include clear owner priorities. We then evaluate if there have been a trade-off between the concerns for sustainability and the goal of quick project delivery, identifying cost as the suffering factor.