[1] It was replaced by a new building at the top of Portland Street which was designed by William Coulthart in the Neo-Georgian style, built in ashlar stone and was completed in 1851.

[1] The design involved a symmetrical main frontage with nine bays facing onto Queen's Square; the central section of three bays formed a full-height tetrastyle portico with Ionic order columns supporting an entablature and a modillioned pediment; there were single storey sections on either side with sash windows and a balustrade at roof level.

[5] However, there were differences: the new building incorporated a high wall behind the new portico so accentuating its profile, the new pediment featured a coat of arms in the tympanum and the detailing on the new side sections was minimal.

[10] Ceredigion County Council continued to use the building for the delivery of local services but moved out to new offices on Boulevard St Brieuc in 2009.

[11][a] The conversion, which cost £950,000, was completed in April 2012[14] and the building was officially re-opened by the Minister for Housing, Regeneration & Heritage, Huw Lewis, on 13 September 2012.