The year 1813 in architecture involved some significant events.

• The Theatre Royal, Plymouth, England, designed by John Foulston, is opened.
• 3 Abbey Road, London (later a recording studio)
• Executive Mansion, Richmond, Virginia, official residence of the governor of Virginia in the United States, designed by Alexander Parris, is completed
• Palacio de Mineria in Mexico City, designed by Manuel Tolsá, is completed.
• Façade of Milan Cathedral, designed by Pellicani, is completed.

• Grand Prix de Rome, architecture: Auguste Caristie

• January 6 – Charles Lanyon, English architect associated with Belfast (died 1889)
• February 23 – Ferdinand Stadler, Swiss architect (died 1870)
• July 21 – Jakub Bursa, Czech architect, folk artist and builder (died 1884)
• December 6 – August Sicard von Sicardsburg, Austrian architect (died 1868)
• date unknown – John Skipton Mulvany, Irish architect (died 1870)

• June 6
  • Alexandre-Théodore Brongniart, French architect (born 1739)
  • Antonio Cachia, Maltese architect, civil and military engineer and archaeologist (born 1739)
• date unknown – Michael Searles, English Regency commercial architect (born 1750)