Part of the car park behind Jersey's States offices will be closed in September for an archaeological dig.
Societe Jersiaise will spend six weeks at the site
Experts from the Societe Jersiaise believe they could find some 13th Century relics of life in Jersey.
The area around Cyril le Marquand House is to be dug up in the autumn to make way for a new court building.
But the States' Planning Committee has given permission for the Societe Jersiaise to spend six weeks looking at one area of the site first.
The land behind the building has been the subject of archaeological exploration before, when some remains from the 13th Century were found.
There was also an old croft, which is a form of cellar.
Digging will begin on 1 September.