In 1369 Hendrik Mijs built a Gothic belfry next to the clothmakers' hall.
It stands as a symbol of freedom and independance.
In the Middle Ages the town’s deeds and freedoms were kept in the belfries, as was the arsenal, and the town council’s assembly room was also to be found there.
Since 1971 the tower has housed a small automatic carillon with 23 bells.
Together with 23 other belfries the Lier belfry was recognised by UNESCO as a World Cultural Heritage Site in 1999.