L Lippo Cikarang is a new developing area is planned to be a district of housing and industry. Today, some parts of Lippo Cikarang industrial area already have waste water distribution systems that flow into a waste water treatment plant. However, the ho using and the commercial areas in Lippo Cikarang are still using septictanck as their waste water treatment system, where as in theory is known as an on site waste water treatment system. For this reason on off site waste water distribution system is planned for the housing and commercial area Lippo Cikarang waste water distribution system is planned until the end of the planned year. It includes planning a waste water distribution system, when all area in Lippo Cikarang is used for housing and commercial needs.The total population in Lippe Cikarang is estimated to be around 239 458 lives by the end of the planned year with the day maximum factor 1,17 and 85,58% of waste waler, which is picked up from doing a comparison with Lippo Karawaci district. The average flow of waste water by the end of the planned year is estimated to be 2,38 lt sec/1000 lives There are two altematives in planning the wastewater distribution system. The calculation results on the 1 lst altemalive are as-follow peak flow 1280 hr/sec,19150 m long main pipe, 150-1290 mm in diameter, 192 manhole, 5 units of flushing building, 5 unit syphon and 17 units pump, all with an estimated cost up to Rp 27 014.527.838,00. The 2nd alternative, however has peak flow 1279 ltr/sec,18850 m long main pipe, 200-1200 mm in diameter, 188 manholes, 5 units of flushing building, 5 'units syphon and 15 units pump, all up to Rp26.921.693. 713,00. With this, 2nd alternative is chosen.