Description: The challenge met on this waterfront site involves the increasing frequency of high water and the need to ensure that no flooding will occur anywhere in the complex once it has been constructed. The solution was to use two basement levels and one on grade level for parking, mechanical equipment and back of house areas with access to those levels only from the raised "Ground Floor" level, effectively creating a bathtub-type of construction. The raised Ground level is used for vehicular and pedestrian circulation and each major use - hotel, ballroom, residential - is provided with its own entry and exit ramps with special attention paid to the need for large numbers of visitors to quickly enter and depart the premises during events such as weddings while not disturbing the hotel and residential tenants and visitors. The hotel rooms are large at an average of over 65 sq.m. each and each room has views of either the sea or the mountains and central Jakarta to the south. The residential tower incorporates the concept of a 'house in the sky' with access via a private elevator, large outdoor terraces and a double-slab floor that allows the owner to locate toilet and kitchen spaces almost anywhere in the unit. All residential units have light and air access to two sides for flow-through ventilation. The ballroom will be one of the largest in Jakarta at 4,000 sq.m. net floor area with a prefunction space on two levels of over 1,500 sq.m. and meeting room space of over 550 sq.m.. The spa and a high-end medical clinic, both located on the roof of the ballroom, provide 6 private treatment villas in Balinese style and a clinic of some 390 sq.m..