A Greens motion to order the state government to release an updated cost estimate for the Macquarie Point stadium has been defeated 25-7 in the House of Assembly tonight.

Greens deputy leader Vica Bayley told parliament the government had ignored a motion passed in May calling for an updated cost estimate by August 11.

Bayley said Treasurer Eric Abetz had effectively admitted costs would rise during a Public Accounts Committee hearing last week.

Labor did not support the Greens motion despite backing the earlier call in May.