Architect: John L. Robinson
Now part of the larger Dún Laoghaire-Rathdown County Offices, the former Town Hall and Market House was a multipurpose building containing a Courthouse, trade and administration facilities for the Borough. It was designed as the result of a competition in a Lombardo-Romanesque reminiscent of some of the work of Deane & Woodward.
The campanile is one of the defining features of the town when approached from the sea. Even today, the outline of Dun Laoghaire is very much one of spires and towers, all built by the Victorians and reflecting the wealth and confidence of the Borough during the 19th century.