During the 20th century the assembly hall was converted into a theatre, and it forms part of the arts complex known as The Atkinson.

The loggia forms an arcade of segmental arches carried on cylindrical columns with crocketed capitals.

The outer bays project forward, their lower storey is rusticated, and it contains a square-headed window with voussoirs.

[5] At the left end of the same front is a smaller tower with a Baroque-style roof, and in the centre is a tower-like attic dormer.

[3] The interior of the centre contains an entrance hall with a coffered ceiling, and a stone staircase with florid Gothic columns.

[1][3] On the left of the front of the building facing Lord Street is the two-bay entrance to the Cambridge Arcade, and on the right is an arch linking it to the Atkinson Art Gallery and Library.

[9] Southport Arts Centre was designated as a Grade II listed building on 15 November 1972.