Today 4.2 Billion People live in cities around the world and with time numbers will keep increasing. It is estimated that by 2050 it will go up 6.7 billion and to keep a balance sustainable development is the only answer. Sustainable development depends on the successful management of urban growth and in this remote sensing and geospatial information are key boosters. PanGeo the first global alliance of earth observation satellite is playing a great role in this. It supports sustainable development by understanding urban growth and land use change.