Brown was the founder, in 1990, of the Australian Bush Heritage Fund, now Bush Heritage Australia, a non-profit environmental organisation dedicated to purchasing and preserving Australian bushland. He was President of the organisation until 1996.[45] On 20 March 2011 Brown donated a 14-hectare (35-acre) property and house he had owned for 38 years to Bush Heritage Australia. The property is located 47 kilometres (29 miles) south-west of Launceston, Tasmania, in the Liffey Valley.