Wet Services Apart from the standard Wet Services design applicable to a Green Star Building , Sutherland ’ s ( formerly GK Pereira ) design managed to capture a large percentage of the roof rainwater into a single piped system and collect this water into a concrete storage tank in the lowest basement . This water is then filtered , cleared and used for all toilet and urinal flushing throughout the building .
One of the interesting challenges was how to get the rain water into a storage tank in the third basement level , with a street level overflow to rain water system , as well as having an automatic main council water by-pass for when there is no rain water available . This was achieved using a float control that would only allow council mains water into the tank when the rain water level dropped below 30 % full .
The building is fitted with an industrial kitchen to provide high level catering to all tenants . The kitchen drainage system is piped to a stainless steel grease separator and is fitted with nonreturn valves to ensure no soil contamination into the system .
The main water feature at the main entrance further enhances the attractive entrance through the flow of water from the ground floor level to the landscaping deck . A water feature was constructed on the south of ground floor level to convey the natural design of the indoor planter which can be seen while moving down the escalator .
Conclusion This development promises to not only enhance the brand awareness of its tenant mix but also to secure a prominent corporate presence in Africa ’ s most exclusive business node .
Landscaping The main Entrance landscaping is designed to create a layered feature , creating the effect of a budding rose from a bird ’ s eye view . Each planter is set out to individually constructed curves . A combination of steelwork , bondeck slabs and concrete walls were used to build up the various layers .
The objective was to build architectural offshutter concrete to all exposed upstands which was achieved despite the incredibly complicated design ( in excess of 1,000 setting out points over 4 layers covering 5m height differential ).
15 Alice Lane South 281