[4] The original building is constructed in sandstone with a slate roof in Neoclassical style.

The central bay projects forward and contains a square-headed doorway above which is a roundel and a band of three panels.

It is flanked by pairs of engaged Corinthian columns, above which is an entablature with a frieze inscribed with "ATKINSON FREE LIBRARY" and a pediment.

The tympanum of the pediment contains carved personifications of Art, Science, Literature, Inspiration, and Commerce.

In the ground floor, separating and flanking the bays, are channelled pilasters with crocketed caps, a frieze and a cornice.

Along the top of the building is a balustraded parapet, and a pedimented attic window in the central bay of each side.

In the middle floor each bay contains two round-headed two-light windows with moulded heads and keystones and are flanked by pilasters.

[3] Internally the former banking hall has retained its plastered coffered ceiling and a Gothic fireplace.