Following on from my visit of the new UTS building in the first post, in this post, I’ll run through my visits of the Barangaroo Reserve and Barangaroo South District. The full list of sites visits that were available through the Conference is available at the Green Cities Conference 2016 Website.
Barangaroo North Reserve and Commercial Barangaroo South
The tour started near the Reserve at the north end of Barangaroo, where our group was met by a number of tour guides both from the Barangaroo Delivery Authority and caretakers of the reserve land.
The suited gentlemen from the delivery authority were the first to discuss the advantages of building the nature reserve parklands, explaining the renovation of this space as made possible by the commercial development of Barangaroo South. They also further stressed the added value of the public space created here while offsetting the construction of the new financial hub in the southern corridor.
We were then welcomed to the area and taken on a tour of the reserve by the park caretakers of indigenous descent before heading further south to learn about the sustainability initiatives of the 6 Star Green Star rating buildings in the South precinct.
Barangaroo Reserve Highlights
While wandering along the footpaths of the park, they shared the history of the area we walked through. The long stretch of harbourfront was named after the matriarchal figure of the Cammeraygal clan, Barangaroo, to whom Bennelong was married. The two individuals had widely different interactions and viewpoints with the newly forming, neighbouring colony of the time.
This reserve space was originally a headland centuries prior, contrasting to its various identities since. A new headland was constructed by excavating the concrete below and using 6,000 sandstone blocks to create a unique cavity beneath which will later serve as a cultural centre.
On-shore, 80 native and local plant species were carefully selected and raised before introduction to the park. The robust flora has taken root successfully, with only a 1% attrition rate over a year. The space is also water positive and greywater is collected and recycled in the basement.
Tours of the park for firsthand learning are regularly run during the week, with more information readily available from the Barangaroo website.
Barangaroo South Highlights
The vast initiative of this south district was aiming to be carbon neutral via numerous angles; from the choice of specialty takeaway materials and recycling of 97+% construction materials to district sea water cooling and on site blackwater recycling, sustainability has been the central theme of this venture.
The completed buildings at the southern end of the district have received 6 stars under the Green Star rating, encompassing areas such as energy, waste, water, and indoor environment. They’ve demonstrated to be amongst world’s best practice for offices and communities.
Since the retailers are small, Lend Lease supplies the capacity they need for choosing and using responsible materials. Plant compostable packaging are encouraged and easily processed on-site. The basement houses a low energy grinding machine for food to compost the food along with the compostable packing. There is also a vessel for collecting gas as bacteria is injected to drive rapid breakdown of the food.
A close relationship with the cleaners enables best practice of waste disposal from tenants and vendors, driving 90+% diversion from landfills. Cooking oils are also pulled out directly from food vendors and turned into biofuel, free of charge.
Building cooling is primarily done via chilled beams throughout, utilising seawater for heat exchange with the chillers. The district cooling capacity of 70 kW is achieved by custom York chiller units, incorporating titanium and ceramic components to combat potential corrosion from seawater.
Additionally, there are extensive end of trip facilities, to support and promote active transport and healthy lifestyles. More highlights of the sustainability initiatives can be found on the Barangaroo website and full details in their sustainability report for Barangaroo South.