The town hall, which was the headquarters of Llanelli Borough Council and now serves as a register office, is a Grade II listed building.

[4] However, the local board of health, which had been established in 1850, decided in the early 1890s to procure a new town hall: the site they selected was open land to the west of Church Street.

[5] Following significant population growth, largely associated with the coal mining and iron working industries, the area became an urban district in 1894.

[1][8] The design involved a symmetrical main frontage with seven bays facing onto Church Street with the last two bays at each end projected forwards; the central section of three bays, which was taller than the other sections, featured a porch with Doric order pilasters supporting an entablature and a pediment with the head of a lion in the tympanum and a statue of justice flanked by lions above; there were tall round headed windows on the first floor flanked by Corinthian order pilasters supporting a cornice with modillions and a balustrade.

[15][16] A plaque to commemorate the life of Sergeant Ivor Rees of the 11th Battalion, South Wales Borderers, who was awarded the Victoria Cross for his bravery at the Battle of Passchendaele during the First World War, was unveiled at the town hall on 31 July 2007.