SuStainable tropical building deSign - Cairns Regional Council ...

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40Cairns Regional CouncilSustainable Tropical Building Design7. GREEN BUILDING CASE STUDIESDescription of projectCity of Melbourne office buildingGross floor area: 12,536sqm (mixedCouncil office space and commercialspace for letting).Figure 9AA cross section of the CH2 building showing sustainable design features,by day. Source: © DesignIncProject cost$77.14 million, CH2 buildingCosts include:• $29.9 million for the base building.• $11.3 million for sustainabilityfeatures.• $2.8 million on education anddemonstration process.• $7.1 million on requirementsspecific to Council.PremiumIt is estimated that sustainabilityfeatures added 22% to theconstruction cost. One of the reasonscited for the high cost was theinclusion of risk management additionssuch as the back up mechanical plant(chillers) and the Co-generationalplant and commissioning for plant andequipment and environmental systems.PaybackThe City of Melbourne took aconservative estimate of an 11 yearpayback time for the sustainabilityfeatures to pay for themselves.However, they believe the paybackperiod will be more in the realm of8 years.
Cairns Regional CouncilSustainable Tropical Building Design41Figure 9BA cross section of the CH2 building showing sustainable design features,by night. Source: © DesignInc
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SuStainable tropical building deSign - Cairns Regional Council ...

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