L Lippo Karawaci is settled as residential district with high population density base on RUTR Kabupaten Tangerang 2005. This area is a middle to high class residential and a commercial trade center in Curug area and its surroundings. Refering to high population growth in planning area (it's more caused by imigration factor), it's estimated that the tendency of physical growth will expand the residential area. It means that from the quantity aspect, the constructed area is more increase than the unconstructed area. So it makes the environment quality declined in that area. It's caused by many open spaces with no optimal function. Besides that the different status between people in and out planning area have made the social problem built up on its surroundings area, which have an exclusive impression. Based on that problems, so we need an optimalization and expansion of the open space quality, either for open built spaces or green open-spaces with ecology and population consideration. From the identification and development program result, there are 4 classification of open spaces in planning area : 1. Green Open Spaces 2. Corridor Open Spaces 3. Utility Open Spaces 4. Multi Use Open Spaces it is highly expected that all points mentioned above may contribute to the planning area as related to the running theme " Functionalization Open Spaces". The final results of the planning are the basic criteria of site planning development, planting design and the use of hard materials based on the planning objectives. Landscape planning is aimed at improving the quality of the area applying the local vegetation while the use of hard material is minimalized and the use of water absorbing material is more recommended.