Mansion House, Dublin party conference of that year. The claim led to a security alert at the house, as the Garda Siochana and army searched for the 25-year-old bomb. Its most famous occupants included Lord Mayors: Mansion House, Dublin The Mansion House () on Dawson Street, Dublin, has been the official residence of the Lord Mayor of Dublin since 1715, and was also the meeting place of the Dáil Éireann from 1919 until 1922. The Mansion House was built in 1710 by the merchant and property developer Joshua Dawson, after whom Dawson Street is named. Dublin Corporation purchased the house in 1715 for
Mansion House, Newport Mansion House, Newport The Mansion House was the official residence of the Mayor of Newport, South Wales until 2009. In addition to being the Mayor's official residence, it also offered hospitality and accommodation to official visitors to the city from overseas. In 2010 plans were approved to convert the Mansion House for use as a Register office and it duly opened in July 2011 after a major refurbishment. The present grounds of the Mansion House were bought in four lots by John Liscombe, Leather Merchant and Sadler of Commercial Street, Newport, between 1886 and 1889. He built the House in