The Mansion House on Dawson Street, Dublin, is the official residence of the Lord Mayor of Dublin and has been since 1715. Its most famous features include
The Mansion House The portico to the front was erected for Queen Victoria's visit in 1900, to provide cover for the elderly Queen in her carriage.
In the 1930s and 1940s, plans were made to demolish the building, and all other buildings on the block on which it is located (which covered an area on Dawson Street, Molesworth St., Kildare St. and the North side of Saint Stephen's Green), to enable the building of a new Dublin City Hall. However the decision of the Irish Government to erect a new Department of Industry and Commerce on a site on the block, on Kildare Street, led to the abandonment of the plans.
For more information on Dublin City Council (of which the Lord Mayor is Chairperson) see:-