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The Sydney office, which has operated for nearly 80 years, now employs more than 400 people. Organised around key disciplines including engineering, strategy and economics, environmental science, planning, project management, geotechnics, infrastructure and architecture, our teams deliver innovative solutions for business-as-usual issues or groundbreaking new projects.

Our clients are public and private organisations delivering projects related to roads, rail, water and waste infrastructure, natural resource and environmental initiatives, energy and mining, through to policy and strategy, land-mark buildings and civil structures.

A sample of our work includes Sydney's first desalination plant,  the landmark Gore Hill redevelopment (Sydney's first five-star mixed use high technology park). the Rouse Hill Infrastructure Project (the largest residential recycling scheme in the Southern Hemisphere), the Liverpool to Ashfield Pipeline, and Norwest Business Park.

Our teams continually strive to create and deliver enhanced services for our clients based on an understanding of the commercial imperative to deliver projects on time and on budget, coupled with our proven knowledge of the regulatory and operating environment in NSW - critical to the success of any project.

All services

Our Sydney practice provides a comprehensive range of services to both public and private sector clients, including:

  • Water and wastewater
  • Transport infrastructure for roads, rail and marine
  • Public infrastructure
  • Buildings, architecture, civil structures and materials technology
  • Environmental management and engineering, contaminated sites and pollution control, natural resources and hydrology, waste management
  • Sustainability, greenhouse and climate change
  • Geotechnics
  • Energy, mining, major industry and agriculture
  • Economics, strategy and evaluation
  • Urban development, planning and stakeholder engagement
  • Asset and risk management
  • Project management
  • Industrial electrical and automation

For more information, contact:

Tasos Katopodis
T: +61 2 8898 8800
F: +61 2 8898 8810
E: Email GHD in Parramatta

Location address
Level 6
20 Smith Street
Parramatta NSW 2150

Postal address
PO Box 788
Parramatta NSW 2124

Cable Tunnel Litigation


GHD provided Expert Witness Services over a period of three years, in response to a summons filed in the Supreme Court of NSW. GHD received instructions from lawyers acting on behalf of one of the co-defendants and their insurers.

The matters involved alleged defects in the design of a partly unlined tunnel in the Hawkesbury Sandstone, with regards to permissible water inflows, drainage, rock support and the accumulation of iron “sludge” (ferric oxy-hydroxide precipitate) deposits in the tunnel over time. The case was concluded successfully by a negotiated settlement at mediation and Notices of Discontinuance were filed in the Supreme Court of New South Wales in May 2014.

Read More . . .

Aquatic Sciences
Aquatic Sciences
Architecture Thumbnail, GHD
Asset Management
Sustainability Thumbnail
Bridges thumbnail
Building Hydraulics
Hydraulics Thumbnail
Climate Change
Climate Change Thumbnail
Contamination Assessment & Remediation
Contamination Assessment & Remediation
Dams Thumbnail
Drafting Thumbnail
HVAC Thumbnail
EIS Thumbnail
Elec Engineering - Indust.
Electrical Engineering
EMS & Audits
EMS Thumbnail
Geotechnical Thumbnail
Interior Design
Interior Design Thumbnail
Intelligent Transport Solutions
Intelligent Transport Systems
Landscape Architecture
Landscape Architecture
Materials Technology
Materials Tech
Mining Engineering
Climate Change Thumbnail
Oil & Gas
EMS Thumbnail
Pavement Engineering
Pavement Engineering
Planning Thumbnail
Power Deliver
Power Delivery
Power Generation
Power Generation Thumbnail
Property & Buildings
Railways Thumbnail
Renewable Energy
Renewable Energy Thumbnail
Risk Management
Risk Managemnt Thumbnail
Roads Sector
Roads BS
Roads Systems
Roads Systems Thumbnail
Stakeholder Engagement & Social Sustainability
Stakeholder Engagement & Social Sustainability
Structures Service Line
Urban Development
Urban Development
Tailings Service Line
Waste Management
Waste Management Thumbnail
Wastewater Treatment
Watsewater Systems
Water Efficiency
Water Efficiency
Water Quality & Treatment
Water Quality Treatment, GHD
Waterways & Coastal
Waterways & Coastal

May Ngui

key person image

May currently manages our Western Sydney operations based in Parramatta but continues to be active in technical delivery and client-facing roles for the company.  May joined GHD in 1991.  A chartered professional electrical engineer, Fellow of Engineers Australia and Graduate Member of the Australian Institute of Company Directors, she has 28 years’ experience in the design and commissioning of electrical and computer-based control systems for industrial plants and infrastructure both in Australia and overseas, spending time in exotic locations such as an oil rig on the South China Sea and in a cement factory in pre-1989 rural China.  May is passionate about technical leadership and development of female leaders in the industry and is a mentor to a number of young engineers both within and outside GHD.

Manager – Western Sydney 
T: +61 2 9239 7350

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