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Lendlease reveals plans for second engineered timber building at Barangaroo

Lendlease is seeking planning approval for another engineered timber office building at Barangaroo South – a seven-storey “sister building” to the already completed International House Sydney.

The building, also designed by Tzannes and currently known as C1, will be created from cross-laminated timber (CLT) and glulam, though will also include concrete, charcoal face bricks and a glass façade. It will have 726 sq m of retail at ground level and 11,022 sq m of commercial space on levels one to six, as well as an outdoor terrace on the top level.

Sustainability targets include 6 Star Green Star Design and As Built, and “in excess” of a 5 Star NABERS Energy rating (target is 5 Star plus 30 per cent).

Specific plans include for more than 700 sq m of the roof to be fitted with solar panels, providing a 105 kilowatt array; double-glazed, high-performance glass on the facade, along with sun shading; LEDs; low-VOC materials; passive chilled beams and connection to the precinct district cooling plant; a rainwater tank or green roof; and connection to the non-potable water supply from the recycled water treatment plant for flushing toilets. The office will also include basement car parking with space for just 18 vehicles, as well as 35 bike spots and end-of-trip facilities.

All up there is an “aspirational target” of a 75 per cent reduction in operational energy use compared to business as usual. The timber construction is also expected to cut embodied carbon by 20 per cent.

Barangaroo South managing director Rob Deck said International House Sydney, which is Australia’s first engineered timber office building, had received an “extraordinary” amount of interest from industry and the public alike.

“This second such building will be the final opportunity in Barangaroo South for prospective commercial tenants seeking an exciting, sustainable and innovative workplace for their employees,” he said.

The NSW government is now requesting feedback on the proposal.

“We highly value community feedback, and will take it into consideration when assessing this new proposal,” NSW Department of Planning and Environment executive director for key sites Anthea Sargeant said. “Anyone is welcome to come and look at the plans.”

If approved, the project is expected to be completed in late 2019.

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