Goods Shed North by Elenberg Fraser + BVN Architecture
The office in Docklands is the redevelopment of an existing derelict heritage listed shed which was constructed in 1889 and formerly used as a railway goods distribution shed. It is the first heritage building in Victoria to receive a 5 star Green Star rating. Tenant VicUrban workplace has registered for a Green Star Office Interiors v1.1 rating and is targeting a 6 star Green Star rating.
Initiatives:
• recycled steel, concrete and brickwork
• energy efficient on-site power, heating and cooling systems (trigeneration), along with the use of energy efficient fittings and systems
• natural light from the historical roof lantern is dispersed into the commercial tenancies due to the open volumetric arrangement
• water collected via a rainwater harvesting tank, which is used to flush toilets and irrigation
• chilled beam system to the ground and mezzanine floor areas of the shed
• central plant located on the new Lantern Building roof at the Collins Street end of the building provides treated water to the chilled beams
• simultaneous generation of usable power, heat and associated cooling in a single process has been achieved via the installation of 4/65 kW gas micro-turbines, a heat exchanger and a 250 kW absorption chiller in the roof plant room
• a wide central trench the length of the shed used for the distribution of services but also improves air circulation via an under-floor displacement system. This unique feature was developed due to the long horizontal nature of the existing shed and acted much like a riser in a high rise building, but also acting as a plenum for underfloor air distribution
16 Marcus Clarke Street by HBO EMTB Architects (Canberra)
The brief was to design a high quality commercial office building which would attract and retain government and private sector long term tenants and achieve high energy, water and resource efficiencies. The commercial viability of the building was dependant upon achieving minimum net lettable areas of 1,000 sqm per office floor and maximising the net lettable space for the building.
Initiatives:
• high performance glazing to the office floors designed to meet the characteristics of the local climate where there are large differentials between internal and external air temperatures
• glazing properties supplemented where required with external sun shading
• HVAC system takes advantage of local temperature differentials between inside and outside air temperatures through unconditioned fresh air and mixed mode operation
• 5 star Green Star design rating; designed to enable a 6 star Green Star fitout rating; and a 5 star NABERS energy rating
• storm water harvesting, intelligent lighting, staged air-conditioning, gas-fired hot water and gas fired co-generation plant all controlled by a smart building management system
• during construction, waste was minimised, separated, contained and dispatched for recycling
ANZ Centre by Bovis Lend Lease
Bovis Lend Lease and HASSELL reps visited 17 workplaces across five countries to understand lessons learnt on leading campus-style workplaces. The building has a 6 star Green Star — Office Design v2 certified rating — the largest commercial development in Australia to have done so.
Initiatives:
• the configuration of the site allowed the design of a building with the predominant façade area to the north and south and narrow façades to the east and west
• underfloor air distribution system has the ability to deliver almost 100 per cent fresh air to the office space when ambient conditions are favourable and at least twice the minimum fresh air requirement at all other times
• heating provided partially by the waste heat generated by the trigeneration system. When required, additional heating is provided via energy efficient, natural gas-fired boilers
• 135 kW, 1,365 sqm rooftop photovoltaic array generates around 150,000 kWh of electricity
• six Quiet Revolution QR5 vertical axis wind turbines are expected to generate around 51,000 kWh per annum
• bioreactor blackwater treatment system that collects and treats all wastewater to a Class A standards
• one of the first buildings in Australia to utilise reverse osmosis technology, further cleaning recycled water for use in the building’s cooling towers. It’s estimated that over 95 per cent of the water required for the cooling towers will be provided by the recycling system
• over 80 per cent of steel used was post -consumer recycled, as well as post-consumer industrial waste product used within the structural concrete
• within the fitout, a new plasterboard product containing 100 per cent recycled paper was used for the first time in a commercial fitout
HQ Development by Leighton Contractors
The development, designed by BVN Architecture, comprises over 40,000 sqm of commercial space and 3,500 sqm of retail space as the new home for Leighton Contractors in Queensland. The building achieves a 6 star Green Star — Office Design v2 rating, achieving 84 credits in the green star rating system — at the time, the highest ever awarded.
Initiatives:
• the design of a ‘H’ shape for HQ’s North Tower optimises the penetration of natural light
• 276 KL rainwater tanks were designed to take advantage of the large roof area to capture water for irrigation and flushing toilets
• 50 per cent more fresh air than a typical office building
• natural gas cogeneration plant, resulting in a modelled NABERS Energy rating of 5 stars plus 67.1 per cent CO2 reduction
• extensive use of BMS and movement sensors for common area lights which activate lighting as required
• 6 star WELS water efficient fittings and fixtures and low flow urinals
• over 60 per cent reduction in PVC use
• 40 per cent cement replacement with flyash and reinforcing steel made using at least 50 per cent recycled content
• during construction, 94 per cent of all waste generated on-site was recycled
• exhaust heat used in the absorption chiller produces chilled water (heat generated is used for the air-conditioning)
• modular fitout partitions, joinery, workstations and chairs which can be easily disassembled
