The major current challenge facing the concrete industry in its pursuit to contribute to a more sustainable construction market is to improve the ecological footprint and at the same time meet the technical requirements of concrete, which as a building material is indispensable for many construction projects. In combination with the strong competitive nature of the industry and the general demand for more economic construction, it will be necessary for this innovation step to be cost-effective. Computer-aided mix design optimisation, in combination with existing production data, could provide concrete plants with a possible solution to this problem. By using data generated over the years under plant-specific conditions, the manual production of many mix design variations can be dispensed with, and one can concentrate on the testing of promising mixes (zero cost innovation). However, the available data must not contain any errors and needs to have consistent quality. If this prerequisite is met, plant-specific models for relevant concrete properties can be created, framework conditions and restrictions for the concrete mix can be defined and adapted mix compositions can be generated with suitable optimisation software.