[1] The first town hall in Montgomery was a medieval half-timbered structure, which a map drawn by the cartographer, John Speed, in 1610 shows was sited in the middle of Broad Street.

[2] In the mid-18th century, the Custos Rotulorum of Montgomeryshire, Henry Herbert, 1st Earl of Powis, proposed demolishing the old building and replacing it.

The new building was designed by William Baker of Audlem in the neoclassical style, built in red brick with stone dressings, and was completed in 1751.

In 1921, a clock tower, which was intended to commemorate the life of the former High Sheriff of Montgomeryshire, Alderman Nicholas Watson Fairles-Humphreys, was installed on the roof.

[10] Improvements were made to the configuration of the ground floor in spring 2009,[11] and a further programme of works, together with the installation of a lift, was carried out in summer 2019.