The planning scheme amendment to allow the development of the proposed $140 million Cambria Green development was knocked back by the Tasmanian Planning Commission.

The commission said no evidence was provided that all directors of the subject companies were aware of the amendment request. The commission also believed much of Cambria chief executive Ronald Hu's evidence was not credible, and he was defensive and evasive when responding to questions.

Due to these reasons and the fact that the applicant did not submit more persuasive direct evidence, the commision was not satisfied section 33(2A) was met.

The issue had been ongoing since April 2018, when it was first brought to the Glamorgan Spring Bay Council.

The tourism development at Dolphin Sands would have included 139 villas and units at the Cambria Homestead Precinct, 161 units and villas along the river, an 80-unit health retreat, golf course, 20 accommodation units at the golf range, and a 150-room resort.