1743 in architecture

Buildings

 * Construction begins on the Basilica of the Vierzehnheiligen, in Bavaria, designed by Johann Balthasar Neumann.
 * Dresden Frauenkirche, in Dresden, Germany, designed by George Bähr, is completed.
 * Eltzer Hof in Mainz completed
 * September 29 – Church of the Gesuati on the Giudecca canal in Venice, designed by Giorgio Massari in 1724, is consecrated.

Births

 * April 13 – Thomas Jefferson, American President and amateur architect (died 1826)

Deaths

 * May 22 – Thomas Archer, English Baroque architect (born 1668)