Reimagining Landscapes
Naturally reconnecting land, biodiversity and people
Pioneers in Landscape Restoration
Cassinia has been a leader in landscape restoration and biodiversity protection since 2004. We deliver projects which restore, reconnect and protect Australia’s natural systems; endeavouring to see all of Australia’s national parks reconnected through biodiversity-based revegetation projects. We also seek to incorporate conservation management into agricultural systems, creating landscapes which are both productive and ecologically resilient.
In the past 15 years we have delivered over 75 landscape-scale projects across four states, and in the process become Trust for Nature’s largest covenantor. This means that we have permanently protected almost 20,000 acres (8000 hectares) of our continent's unique environment - more than any other organisation in Australia.
We exist to assist other businesses to develop projects which heal the planet, and collaboratively work to develop solutions in Carbon, Biodiversity Protection and Sustainable Agriculture.
Cassinia Environmental
Cassinia News
loading map - please wait...
Featured Projects
Our Team

Paul Dettmann
Founder & CDO (Chief Dreaming Officer)
Paul has extensive experience in landscape management, agriculture, and project management. He is a 6th generation farmer with a Master of Environmental Science from the University of Melbourne and has been instrumental in a range of high-profile environmental projects, including the first CDM-accredited forestry project in Africa. With over two decades of experience, Paul has cultivated strong networks across several environmental industries.

Anna Radkovic
Landscape Operations Manager
Anna has a passion for working with nature and developing strong relationships with people. Holding a Master of Environment and Sustainability, specialising in International Development, she coordinates our land management teams to deliver the outcomes necessary for each project around Australia. Anna grew up in Kenya and hopes to one day return to East Africa to bring her sustainability expertise to new projects.

Nathan Smith
Chief Operations Officer
Nathan has 15 years’ experience across water, agribusiness, waste and environmental sectors. Prior to joining Cassinia, Nathan worked as a consultant for Deloitte Access Economics for nine years as well as water industry associations and a social enterprise delivering resource recovery services. He holds a post grad qualification in environment at the University of Melbourne and bachelor’s degrees in environmental policy and urban planning at RMIT.

Ray DeMack
General Operations Manager
Ray has been an integral part of the Cassinia team since 2013, and brings both agricultural and land management expertise to his role. Ray's ability to handle just about any problem on the land (never giving up until the problem is resolved), his practical skills in fencing, pest and weed control, as well as an incredible attention to detail are great assets to our work.

Mary Wildermast
Office Manager
From a background with the University of Melbourne in Events Management and Administration, Mary organises the office, events, and accounts at Cassinia, offering a very welcome and essential contribution to our team.

David Reside
Project Development
David joined the team in 2019 to facilitate the development of new projects and Cassinia's strategic vision. He has a Master of Environment from the University of Melbourne, specialising in Development.

Charles Williamson
Livestock Partner
Charles joined the team in 2019 as a livestock partner, managing sustainable agriculture on our Sievers Lane property. He has acquired considerable natural resource management experience as a mining engineer in Queensland. His passion for environmental stewardship has brought him back to Victoria, where he enjoys bringing a sophisticated and analytical approach to farm management.
Our Partners















