The senate is expected to approve the draft proposal, with the result known by the end of February.
The court will be used to settle disputes and lawsuits between government authorities and members of the public, and those between government employees and government authorities.
At the moment these cases are handled through the Nakhon Si Thammarat Administrative Court, which currently oversees Phuket.
Atichoke Pholdee, the Director of the Bureau of Asset Administration, believed the proposal would be approved, given members of parliament had already said yes to the draft version.
Pending approval, construction on the B245 million, three storey building will begin in May, and was expected to be finished around February 2014.
The 9,000 sqm courthouse will sit on 19 rai of land in Mai Khao, near the Provincial Police Region 8 office.
It will be the third Administrative Court in Southern Thailand, with the other two located in Songkla and Nakhon Si Thammarat.