It was a long 2-storey arcaded structure with 13 arches and a central cupola located close to Newgate and the Black Dog jail.

[5] However by the first quarter of the 19th century, the location was considered inconvenient both as it was far from the modern port and because the structure was blocking the movement of goods on the street.

[8] The new building was designed by George Halpin in the neoclassical style, built in ashlar stone at a cost of £22,000 and was completed in 1817.

[13] The movement had achieved such momentum by that time, that the UK Government was forced to sanction prominent people who attended O'Connell's meetings.

[14] The use of the building as a corn exchange declined significantly in the wake of the Great Depression of British Agriculture in the late 19th century.