The Taj Mahal in Agra, India, is under construction. The mosque and jawab in the complex are completed in 1643.
Børsen in Copenhagen, designed by Lorentz and Hans van Steenwinckel the Younger and begun in 1619, is completed.
59-60 Lincoln's Inn Fields, London (later known as Lindsey House), probably designed by Inigo Jones and begun about 1638, is completed.
Tron Kirk in Edinburgh, Scotland, designed by John Mylne, is dedicated.
The Mauritshuis at The Hague in the Dutch Republic, designed by Jacob van Campen and Pieter Post, is completed.
1645–1648 - Main structure of Potala Palace in Lhasa, Tibet, is built.
The St. Mary Magdalene Chapel, Dingli, Malta, is rebuilt after the original chapel had collapsed.
Chehel Sotoun in Isfahan, Persia, is completed.
1647 - The Changdeokgung in Seoul, Korea, is reconstructed.
1648 - Jama Masjid, Agra, is built.
1642 - Giovanni Barbara, Maltese architect and military engineer (died 1728)
c.1645 - William Winde, English gentleman architect (died 1722)
1645: December 27 - Giovanni Antonio Viscardi, Swiss baroque architect working in Bavaria (died 1713)
1646: April 16 - Jules Hardouin Mansart, French baroque architect (died 1708)
1647 - Henry Aldrich, English polymath and amateur architect (died 1710)
1648 - Pietro Perti, Ticinese architect and sculptor working in Lithuania (died 1714)
1640s in architecture Wikipedia