1420s in architecture

Buildings and structures

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.

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