Peter Hemphill

Peter founded Open Lines in 2010 after previous stints consulting and working for the Commonwealth Government.

He thinks that collaboration, a real understanding of issues, and clarity of communication are the keys to delivering successful projects.

His strengths include the ability to lead and manage the delivery of complex projects, helping clients use the right strategy, and delivering high quality written material that is well received by clients and regulators.

Projects that Peter has helped lead include:


Heather Tolley

Heather Tolley is a Director of Open Lines, specialising in environmental impact assessment under the Commonwealth Environment Protection and Biodiversity Conservation Act 1999 (EPBC Act).

She has successfully delivered a number of large and complex projects across a variety of sectors, including urban development, ports, mining and infrastructure.

She enjoys the strategic thinking involved in her work - the need to understand and deliver on project needs, priorities, resources and timeframes, while meeting legislative and policy requirements and achieving good environmental outcomes.

Projects that Heather has helped lead include:


Jennifer Hulme

Jennifer joined the team at Open Lines in 2014 and has over eight years experience working in a variety of roles in the environment sector. She has worked as an Australian Youth Ambassador for Development for an environmental non-government organisation in Vanuatu, an assessment officer for the Commonwealth Department of the Environment, and as a private consultant.

Jennifer has a particular interest in the marine and coastal environment. She has contributed to environmental impact assessment projects and policy development in the sectors of port development, dredging operations and offshore oil and gas exploration and development.

Major projects that Jennifer has contributed to include:


John Horan

John joined the Open Lines team in 2015 after working in data management and crop science. He has exceptionally strong analytical skills and enjoys using data to gain insight into environmental assessment and management.

With a background in maths, John brings some serious rigour to our analysis of issues and development of solutions for clients. He also provides us with GIS mapping resources and is leading our software development projects.

Major projects that John has contributed to include:

  • The Strategic Assessment of the Perth and Peel Regions
  • Port of Abbot Point Master Planning
  • Information Management at the Port of Hay Point
  • Impact assessments for Edify Energy’s solar farms in Queensland


Katie Miller

Katie joined the Open Lines team in April 2017. She has more than seven years of experience working in a range of roles in the environment sector. She has helped develop policy for the Commonwealth Government on issues around climate change and agriculture, biodiversity conservation on private land, and has worked as an assessment officer administering the Environment Protection and Biodiversity Conservation Act 1999.

She has also worked overseas in Fiji and Thailand on environmental law, community development and environmental management issues.

She is looking forward to being a part of the Open Lines team and working with clients on new and interesting projects.