Mansion House, Dublin 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 assignment as the official residence of the Lord Mayor. It retains this purpose to this day. In 1821, the Round Room was built in order to receive King George IV., while the distinctive
São Bento Mansion São Bento Mansion São Bento Mansion () or, officially, the official residence of the prime minister () is a late 19th-century building that, presently, serves as the official residence of the Prime Minister of Portugal. It is located in the Lisbon civil parish of Estrela, back-to-back with São Bento Palace, seat of the Assembly of the Republic, the Portuguese Parliament. The house was first built by capitalist Joaquim Machado Cayres in 1877, to serve as his private residence. The plot of land he bought for it had belonged to the adjoining Benedictine Monastery since 1598. In 1928, the newly-established authoritarian