The year 1700 in architecture involved some significant events.

• March 27 – François de Rohan, prince de Soubise, buys the Hôtel de Clisson, which is subsequently remodelled by Pierre-Alexis Delamair.
• A new facade is built on the Cathedral Basilica of St. Peter Apostle at Frascati, Italy.

• Brown House, Rehoboth, Massachusetts, USA
• Castillo de San Pedro de la Roca, Santiago de Cuba (begun 1638), by Giovanni Battista Antonelli
• DeWint House, Tappan, New York, USA, by Daniel DeClark
• Federal Hall, New York City
• Hill Court Manor, Ross-on-Wye, England
• Rossie House, Angus, Scotland, by Alexander Edward
• Slushko Palace, Vilnius, Lithuania (begun c.1690), by Giovanni Pietro Perti
• Tessin Palace, Stockholm (begun 1694), by Nicodemus Tessin the Younger
• Upper Chapel, Sheffield, England, by followers of Timothy Jollie
• Wren Building, College of William & Mary, Williamsburg, Virginia, USA (begun 1695)

• May 12 – Luigi Vanvitelli, Italian engineer and architect (died 1773)
• August 27 – Carl Hårleman, Swedish architect (died 1753)
• date unknown
  • Santiago Bonavía, Italian architect and painter (died 1760)
  • Bartolomeo Rastrelli (died 1771)

• September 15 – André Le Nôtre, French landscape architect (born 1613)
• date unknown – Hans van Steenwinckel the Youngest, Danish architect and sculptor (born 1639)