Construction of a new park at South Bank has begun with figures in the state budget revealing it will cost $18.5 million, almost 3 million more than initially planned. 

The park was expected to be completed by the end of 2017, but a spokeswoman for South Bank Corporation told the ABC a redesign of the project meant it will now be completed by the end of 2020. 

Opposition Leader Deb Frecklington says she doesn’t understand why the project is taking so long and called on the state government to deliver on its promises.