 The pediment in the blind attic above the columns has a relief carving attributed to Musgrave Watson "depicting Wisdom in her chariot ushering in the morning, and followed by the Three Graces", according to Andrew Foyle in Pevsner's Guide.He adds that the main hall was disappointingly remodelled in 1935, following a fire the previous year.In 1838, the design of the interior was described as "nothing either particularly remarkable or new in regard to design" in the "Civil Engineer and Architects' Journal".