Glasgow Sheriff Court is to become the first post-war court building to be given B-Listed status by Historic Scotland.
The building, in the Gorbals, was opened by the Queen in 1986.
Sheriff Principal Craig Scott said: "With anything up to 2000 court users crossing its threshold on a daily basis, Glasgow Sheriff Court is reckoned to be the busiest court in Europe, let alone Scotland.
"As such, it has now established its place in Glasgow folklore.
"The listing of the building and its enduring qualities are tributes to its original design team."