M Mediterania Garden Residence as an apartement facilities has four towers and each tower consider of 31 floor. The subject to be evaluated are water supply system for domestic use, waste water and vent system, rain water, drainage system and fire hydrant system only. The calculation of domestic water consumption based on the allocation of the person who lived in the apartement. The source of water are from PDAM and deep well of200 L/minute capacity The capacity of ground water storage 164 m' and the over head storage tank of 20 m' For the purpose of fire fighinus the building equipped with hydrant system where water as the exting guishing. The reservoir capacity for this purpose has calculation as 2,6 m' x n, where n is the largest number of nozzles when fire is appearedThe pipe size are detgermined on fixtures unit (FU) as stated on experemintal data on different type of fixtures and usages which has been issued as SNI 2000. The resault of the calculation on the four systems showed that there is so significance different as follow The result of calculation water supply is 1500, with diameter 150 mm its same with the reality. The result of calculation fire hydrant is 24 m3, The result of calculation strom water is 100 mm, The result of calculation waste water is 125 in reality 1 OOmm.and the result of calculation ven is 100 same with the reality. The hydro pnenumatic facilitie has been installed on the roof of the tower to guaranted the water pressure needed in the281h floor and 2ih floor as calculated in this case the volume and the pressure is difference considerations where on than hydro pnenumatic. Facilities served four floors, the difference appear to this volume of the tank and the arrange of pressure