The first market house at Clones was commissioned by Richard Lennard, husband of Anne Barrett-Lennard, 16th Baroness Dacre in the 18th century.

[6] The new building was designed by William Deane Butler in the neoclassical style, built in ashlar stone and was completed in 1846.

The central section was surmounted by a modillioned pediment, containing the coat of arms of Richard Lennard, which had been recovered from the earlier market house, in the tympanum.

[10] An extensive programme of works, involving roof restoration, new guttering and re-pointing, was carried out to a design by Alastair Coey Architects and completed in 2014.

[11] The works allowed Monaghan County Council to bring the building back into use by as a venue for the delivery of local services.