The Creswick Road car park project was originally proposed to be a crushed rock car park, the scope of which required quotes only.
The initial project cost was estimated to be approximately $180,000, under the tendering threshold.
Quotes were sought from contractors for works to be carried out.
A change in project scope occurred during the initial works, which included a sealed pavement and lighting for the car park.
No extra costs were incurred due to project delays.
The 300 car parking spaces will accommodate the growing number of CBD workers, particularly once the nearby GovHub opens at the end of 2020.