The building was originally designed by J. Wilson of Bath and constructed around 1857 and the site chosen was for practical reasons on Walliscote road.

The original building was extensively altered and extended by the District Council 1897 and designed by Messrs Wilde, Price and Wooler as joint architects.

The South wing of the building was enlarged and added the arcaded entrance and remodelled the existing campanile to form a clock tower which is finished in grey limestone with ashlar banding.

The North and West wings of the Old Town Hall were added in 1927 and incorporated remodelling of the north end of the east elevation.

The clock was constructed by Henry Dark of Weston based clockmakers W.E. Perrett in April 1898 with the main frame of solid iron and a bellow weighing half a ton, cats by local iron founders Hillman and sons.

The clock is four faced around the tower.

The clock tower was originally located at the corner of the town hall until the 1929 extension effectively relocated it into the body of the building. Early photos show the change of the building.

In 1939 a further extension which now forms the first and second floors of the West wing, returning along the south was constructed in grey limestone.

This section is not visible from the street.