1420s in architecture

Buildings

 * 1417–1420 – Ulugh Beg Madrasah in Samarkand is built.
 * 1419–1427 – Ospedale degli Innocenti in Florence (first stage), designed by Filippo Brunelleschi.
 * 1420
 * Khan Jaqmaq, Damascus, is completed.
 * Forbidden City of Beijing, China, is completed.
 * Temple of Heaven in Beijing is completed.
 * 1421 – Traditional foundation date of Larabanga Mosque in northern Ghana.
 * 1424 – Start of final stage of construction of Doge's Palace, Venice.
 * 1425 – Rebuilding of Sherborne Abbey choir, England, begins.
 * c. 1425 – Rebuilding of St. Leonhard, Frankfurt, choir, perhaps by Madern Gerthener.
 * 1428–1430 – Ca' d'Oro, Venice, built by Giovanni and his son Bartolomeo Bon for the Contarini family of doges.
 * 1427 – Harmondsworth Great Barn in England is completed.
 * 1428 – Church of Sant'Agostino, Amatrice, Kingdom of Naples, is built.
 * 1429 – Ulugh Beg Observatory in Samarkand is completed.

Births

 * c. 1429 – Guiniforte Solari, Milanese engineer, architect and sculptor (died 1481)