1545 - Part of the Biblioteca Marciana in Venice collapses, causing the architect, Jacopo Sansovino, to be imprisoned briefly.
1546 - Michelangelo Buonarroti is made chief architect of St. Peter's Basilica in Rome.
1549 - The spire of Lincoln Cathedral in England is blown down.
Kamran's Baradari in Lahore completed
Approximate date of completion of some of the Device Forts on the coast of England: Calshot, Sandgate, Sandown and Walmer Castles
Approximate date of the construction of Santa Cecilia Chapel in Għajnsielem, Gozo, Malta
Portland Castle on the Isle of Portland, England, completed
Qila-i-Kuhna Mosque in the Purana Qila in Delhi completed
1541–1544 - Old Hall of Berkhamsted School in England built
Andrea Palladio completes his first commission at Villa Godi, first of his Palladian villas of Veneto; the neighbouring Villa Piovene is completed at about the same time
Church of Saint Lucius, designed by Tommaso Rodari in the style of Bramante, is completed at its original location in Lugano, Switzerland
Approximate date of completion of more of the Device Forts on the coast of England: Pendennis and St Mawes Castles in Cornwall, East Cowes Castle on the Isle of Wight and Sandsfoot Castle at Weymouth, Dorset
1543 - Lighthouse of Genoa completed in present form
1544 - King's College Chapel, Cambridge completed
1544–1549 - Xuanfu–Datong section of Ming Great Wall of China constructed
c. 1546 - Loggetta del Sansovino of St Mark's Campanile in Piazza San Marco, Venice, designed by Jacopo Sansovino, is completed
Construction of the Château de Chambord ceases on the death of Francis I of France
Yarmouth Castle on the Isle of Wight is completed
1548: September 2 - Vincenzo Scamozzi, Italian architect (died 1616)
1543: June 25 - Giovanni Mangone, Italian sculptor, architect, military engineer and antiquarian
August 3 - Antonio da Sangallo the Younger, Italian architect (born 1484)
November 1 - Giulio Romano, Italian painter and architect (born c. 1449)
1540s in architecture Wikipedia