The Courthouse and Library in Charlestown is an impressive, large, cut-stone building originally dating from 1825. The structure was partially rebuilt in 1875 after a fire, and the clocktower was added in the first half of the 20th century.

The library has a beautiful interior roof structure which looks as if it was created by boat-builders!

The second floor of the building houses Charlestown's public library. This is a magnificent airy space which has a lovely quiet and studious atmosphere, and an extraordinary beamed ceiling which looks almost as if it was designed by or built by ship-builders.