Stage two of the CERES redevelopment, which started this week, will add 15 workshops and meeting spaces, a restaurant and kitchen facilities, and offices.
A proposed third stage will involve the development of a 200-seat performing arts centre.
But CERES spokesman Paul Adams said the auditorium might still be some time off. He said CERES was a not-for-profit organisation, and that any redevelopment would rely on community donations and government funding.
CERES – which stands for the Centre for Education and Research in Environmental Strategies – came about in 1983, when the then Brunswick Council granted long-term stewardship of a former East Brunswick tip to the community.
The community park has grown in popularity, recently opening a visitor centre and a permaculture and bushfood nursery.