Tasmania has rejected a Chinese-backed bid to build a tourist resort overlooking Freycinet National Park on the state's eastern coast.

Company Cambria Green applied for the creation of a special development zone in April 2018 to enable the construction of a vast complex including 550 accommodation units and hotel rooms, two golf courses and an 80-bed health spa or palliative care unit.

In a scathing decision, the planning commission ruled that the proponent had failed to provide enough evidence to prove it actually had the consent of Hong Kong landowners involved with the bid.