With the growing trend of population and migration of people from rural to urban area, the cities of nation are becoming overcrowded. To manage the needs of people and also to safeguard the resources available, the planners and policy makers need to have a current landuse map of any city or town. The present study focuses on the preparation of landuse map of Chennai, the capital city of Tamilnadu. As the growth of the city is fast and uncontrollable, it would be well prudent if the landuse map of present-day city has been prepared. Though there are wide sources like Global Landcover Facility (GLCF) are available to get free satellite images and many studies have been carried out by preparation of landuse/landcover map from them, the attempt has been made to prepare landuse map from the very prominent web map service render by Google Earth images. The extraction of image tiles from Google Earth is made possible using an open source software named Elshayal Smart. The whole Chennai city could be covered using 735 individual tiles of Google earth images. After mosaicking and clipping the required city bound, onscreen digitization of various landuses/landcovers was done using ArcGIS software. The establishment of topology and hence the area of various classes were then obtained. The area occupied by built-up area is 126.58 sq.km, which is the highest as compared to other landcover classes like agricultural area (16.44 sq.km), open land (12.80 sq.km) and water bodies (07.19 sq.km). The results of landuse/landcover analysis of various zones of Chennai city would facilitate the city planners to maintain sustainable growth. ©IAEME Publication.