|Covid-19|Azm Palace (Hama), Syria, built.
Hôtel de Caumont, Aix-en-Provence, designed by Robert de Cotte (d.1735) and Georges Vallon, completed.
Kozłówka Palace, Poland, designed by Józef Fontana II, completed.
Palace of Portici, Italy, designed by Antonio Canevari, completed.
Palais Rohan, Strasbourg, Alsace, designed by Robert de Cotte, completed.
Malplaquet House, east London, England, built.
Berlin Court Opera, designed by Georg Wenzeslaus von Knobelsdorff, inaugurated.
Queen Mary Court at Greenwich Hospital, London, planned by Wren (d.1723) and Hawksmoor (d.1736), completed by Thomas Ripley.
Redland Chapel, Bristol, England, designed probably by John Strahan or William Halfpenny, built.
Batty Langley publishes Ancient Architecture Restored in England, a pioneering pattern book for Gothic Revival architecture.
March 13 - Karl Friedrich Schinkel, Prussian architect (died 1841)
June 29 - Joseph Emanuel Fischer von Erlach, Austrian architect (born 1693)
1742 in architecture Wikipedia
The year 1742 in architecture involved some significant events.