Sustainability is an integral part of all area development projects in Rotterdam. Sustainable areas are future-proof areas with good living conditions. This means that the housing here is comfortable, readily accessible, with low energy bills, attractive outdoor spaces, responsible transport, clean air, optimal use of facilities and amenities, etc. Furthermore, sustainable areas are potential money-makers. Think, for instance, of energy-neutral or even energy-generating homes, large-scale applications of renewable energy, so-called smart grids and urban farming. The implementation of several combined forms of sustainable measures results in profitable areas that harbour intrinsic added value. These sustainable areas help to avoid future and hidden costs; they promote health, are prepared for the consequences of climate change (adaptation) and give new life to vacant property.