Tonkin Consulting


Our holistic approach to infrastructure and utility services design provides innovative, cost effective options for creating sustainable communities in which we live, work and play.

Working with land developers, local governments, urban planners and state government agencies, we collaboratively transform new land settlements or dated housing estates into fully functioning, inclusive, connected communities.

From inception, planning and implementation to monitoring, our technical advisory and design services span the complete development cycle. We provide infrastructure design advice, civil engineering design services, environmental impact studies, development approval negotiations, and complete project management for subdividing.

We have extensive experience with ‘green’ and ‘brown’ field development sites across urban and regional landscapes. Our in-house advice and design expertise covers water supply, water treatment and septic tank effluent disposal, roads, traffic management, stormwater drainage, telecommunications, power and gas supply.  In addition, we offer the following specialist services for development projects.

Our Capabilities

  • Infrastructure Planning
    Master planning civil infrastructure and services |development assessment advice |Flood assessment and advice |stormwater master plans |marina and waterfront developments |independent financier reporting and due diligence
  • Contaminated Site Management
    Environmental site history |soil assessment and groundwater monitoring |contaminant fate and transport modeling |human health and ecological risk assessment |contamination management and remediation |soil and fill management plans
  • Traffic & Transport
    Traffic engineering and management| traffic impact assessment |transport planning |road safety audits |mobility plans to encourage pedestrian and cycle traffic |local area traffic management
  • Water Management
    Stormwater planning, harvesting and reuse |collection, treatment and reuse schemes |water sensitive urban design |wastewater collection, treatment and disposal |wetland design
  • Construction administration

Key Contact

Sam McCarthy

Sam has a wide range of experience in the delivery of infrastructure projects across civil, residential development, heavy industrial, transport, mining, water and wastewater industries. Sam excels in developing strong workplace relationships in a range of diverse environments, having worked throughout Australia in both urban and remote locations. Along with his relaxed style, he fosters a highly consultative approach which ensures workable solutions which meet a range of stakeholder and business needs. Sam is a Member of Engineers Australia and is an Associate Member of the Australian Institute of Company Directors. 

Email .(JavaScript must be enabled to view this email address) Phone 08 8273 3100

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