Olderfleet: Case Study   Melbourne, Australia

Olderfleet is a 58,000 sq.m PCA Premium Grade office tower located in the centre of Melbourne’s CBD. Set back from three heritage-listed buildings in Collins Street, the 38-storey office can accomodate over 5,000 people.

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A series of third spaces create a rich experience through a combination of retail offerings, business lounge, wellness centre and childcare centre complemented by best in class end-of-trip facilities to support and enrich the day-to-day lives of its tenants. The site is sloped towards the south from Collins Street to Flinders Lane and features views across the Yarra River to Port Phillip Bay. 

It is well located for convenient access to Melbourne’s public transport system with several tram lines along Collins Street, and in close proximity to both Southern Cross and Flinders Street stations.

Olderfleet Buildings. Elevation.

Olderfleet Buildings. Integration and preservation.

The project achieved a WELL Core and Shell Platinum rating. This includes the incorporation of numerous health and well-being initiatives including a feature staircase internally to promote active workplaces, health stations for tenants and access to the building’s wellness centre, carefully selected interior materials. 

A 5 star NABERS Energy Base Building Commitment Agreement has also been achieved. The building’s high-performance double-glazed and triple-glazed façade with external shading and a high degree of solar control work to minimise energy demand. The HVAC equipment selected is consistent with best practice and the LED lighting design averages at 3 W/m2.

The building features a centralised HVAC system with water cooled chillers and high efficiency condensing gas-fired boilers serving the majority of the development.

The greenhouse gas emissions are further reduced through the incorporation of a PV array on the roof of the development, maximising the space available and a gas-fired cogen engine. Other initiatives include an 80m2 green roof, rainwater harvesting, sustainable materials and a white roof.

The tenant-focused design incorporates a ‘vertical village’ concept, with the tower split into three separate neighbourhoods which respond to specific tenant requirements and provides them with a unique identity within the overall building.


The project integrates with the existing Olderfleet Buildings (Gothic style from 1889-90), restoring them for future uses and preserving their heritage significance. The project also includes a public art piece titled ‘Solar’ by internationally renowned artist Wolfgang Buttress. The project contains heritage interpretation panels and digital fields which engage with visitors and building users to celebrate the history of the Olderfleet buildings.


1. Level 39 & 40 roof – 80 kWp PV array is implemented on the roof of the building with a specified performance target of ~75 MWh/yr. which provides more than the energy demand of the BOH areas.

2. North Façade – Mix of high performance double and triple glazed facade to north, east, south and west of client floors only (L15, L32).

3. Shading – External shading is to the north, east and west facades. No shading on the south façade. DGU typical façade system.

4. Heritage – Existing heritage Olderfleet Buildings integration and preservation.

5. Level 6 and 7 – Gym, wellness and childcare centre facilities.

6. Carpark – 22 electric car charging stations (provision for 57).

7. Atrium – 32 m height atrium containing art display, F&B and interactive historic digital displays.

8. Best in class end-of-trip facilities – 420 secure 26 visitor; 446 total bike spaces with entry ramp, 50 showers, 631 lockers.

9. External terraces – access to fresh air and outdoor activities.

10. Water – Combined rainwater and on-site detention tanks. Rainwater harvesting for toilet flushing

Key Sustainability Facts

Climate Zone

6 - Mild temperate

Operational Energy/Carbon

- EUI: 2800 kWh/m2/year

- Energy/fuel types: grid + on-site renewables (15% solar energy)

- Reduction of Energy Consumption per year and Peak Electricity Demand Reduction from an Equivalent New Building: 8% mj/year, 31% PED

- Reduction of Embodied Carbon from a Baseline Scenario: 42%

Embodied Carbon

5,295 kg-CO2e/m2

Melbourne, Australia

Targeting 6 Star Green Star and 5 Star NABERS energy rating, 4 Star NABERS water rating, Platinum Core and Shell WELL Pre-Certification for base building (first in Australia).

Project Partner/Lead
Neil Stonell/Tim Cox

Project Team
Grimshaw, Arup, AECOM, RBIS, UAP, Fytogreen


58,000 sq m

170 m