The castle tower is a fragment of the oldest building in Tukums – the Livonian Order Castle.

It is believed that the construction of the castle in Tukums was commenced in 1277. The castle was surrounded by a 7.5 m tall and 1.6 m wide stone wall. The castle defence was ensured by an artificial, deep moat and its position on the high bank or the River Slocene. Only a small stone wall fragment has been preserved from the big livnian Orded castle, but the castle tower built in the 18th century in turns hosted premises for a prison and the caronal stocks (granary). Nowdays, it hosts the history museum of Tukums town, telling about the towns history from the ancient times up until the modern day.