The city council has spent more than $900,000 on the proposed Mt Coot-tha zipline project, which has since been scrapped due to overwhelming community backlash.

The development application had already cost $300,000, before technical consultation drove the price up to $902,000, which Mayor Adrian Schrinner stated to the council chamber yesterday.

The Mt Coot-tha protection alliance, which appealed against the project, is still crowdfunding its legal costs, though the total bill is not yet determined.