Sydney Adventist Hospital Redevelopment

Tetra Tech’s High Performance Buildings Group provided electrical, lighting, and other essential design services to the Sydney Adventist Hospital’s largest-ever redevelopment project in Australia.


  • Size: 25,000 square meters (269,100 square feet)
  • Construction Cost: AUD$181 million (USD$123 million)
  • Client/Owner: Corporate Trustee of the Seventh Day Adventist Church
  • Architect: MBMO and HASSELL
  • Contractor: Buildcorp
  • Completion Date: 2014

Successful design required Tetra Tech to liaise with multiple parties to produce a building that satisfies the current demand for health services and allows for predicted future demand.

This redevelopment further enhances the Sydney Adventist Hospital’s ability to provide excellence in healthcare through new, expanded, and revitalized facilities. Stage 1, completed in August 2014, includes:

  • Expansion of the existing Clinical Services Building with provision for an additional 10 operating theaters and up to 200 new beds
  • A new arrival podium and entry building
  • A new purpose-built, integrated cancer center
  • A multideck garage and other parking facilities
  • A new maternity, women’s health, and children’s unit

Our team addressed multiple technical and design challenges to support creation of a smart, sustainable facility for this major hospital expansion project.

Site Preparation and Infrastructure Upgrades: The project required multiple site preparation and infrastructure upgrades to be designed and documented for the new development. An extensive inground survey was undertaken to inform the design.

New Substation and High-Voltage Feeder: Due to the size of this development, Local utility company Ausgrid determined that a new high-voltage feeder was required to be installed from the zone substation. The zone substation nearest to the site is about 3 kilometers (km) (1.86 miles) away. Tetra Tech worked in conjunction with Ausgrid and the contractors to define the route for the new high-voltage feeder to the site.

Multiple Design Packages: Additional design packages for the garages, entry building, the base building, and fitout were required to be designed and documented. This was a unique coordination and resourcing challenge that Tetra Tech overcame.

Multiple Equipment Vendors: This project was unique in that Tetra Tech was required to coordinate the required interfaces and provisions of specialist medical vendors. Tetra Tech 's ability to provide solutions to the above issues through sound engineering principles, consultation with both engineering and clinical stakeholders, and continued due diligence on-site resulted in a complete set of documentation being developed.

Fire protection features were significantly improved, with a strategy that allows critical departments—such as operating theaters—to continue operation in the event of an emergency. Tetra Tech’s ASP3 electrical services for the project included design and documentation of lighting, power, communications, and security. The design includes a new 5 kilometers (km) (3.1 miles) high-voltage feeder from the zone substation, street lighting and intersection design, and a chamber substation.

Tetra Tech also implemented an intelligent lighting system that was designed to save energy and create less heat, resulting in less strain on the climate control system and higher energy efficiency.

An integrated audiovisual system was incorporated into the design, improving the hospital’s operation and patient experience.