1774 in architecture

The year 1774 in architecture involved some significant events.

Buildings and structures

Image:Hammond-Harwood House.jpg|thumb|350px|Hammond-Harwood House, Annapolis, Maryland

Hammond-Harwood House in Annapolis, Maryland, designed by William Buckland is begun and largely completed before the architect's death, the only surviving example of American colonial architecture based on a design by Palladio.
Original construction of Château de Bénouville in Normandy, designed by Claude Nicolas Ledoux is completed.
Royal Crescent in Bath, England, designed by John Wood, the Younger is completed.
Dundas House in New Town, Edinburgh, Scotland, designed by William Chambers, is completed.
Gatcombe Park in Gloucestershire, England is completed.
Clifton House, Belfast in the north of Ireland, a poorhouse designed by Mr Cooley, is opened.
Włodawa Synagogue in Poland is completed.
Basilica church of Santissima Annunziata Maggiore, Naples, designed by Luigi Vanvitelli and completed by his son Carlo, is consecrated.
Ermita de Santa Ana overlooking Chiclana de la Frontera in the Spanish province of Cádiz, designed by Torcuato Cayón, is completed.
Monastery of San Francisco, Lima, Peru, consecrated in 1673, is completed.
Construction of Real Felipe Fortress at Callao near Lima, Peru, begun to the design of Louis Godin in 1747, is concluded.
Vaults and choir of Vannes Cathedral in Brittany are completed.
English Bridge over the River Severn in Shrewsbury, England, designed by John Gwynn, is completed.
Marble Bridge at Tsarskoye Selo in Russia is erected.
Work ceases on the Palace of Versailles in France.