The year 1779 in architecture involved some significant events.

• St Paul's Square, Birmingham, England.
• South façade of Stowe House, England, completed in the neoclassical style based on a design by Robert Adam.
• Robert Adam completes his remodelling of Kenwood House on Hampstead Heath, London.
• New Church of Ireland Christ Church Cathedral, Waterford, designed by John Roberts, completed.
• Fridericianum in Kassel (Hesse), designed by Simon Louis du Ry, completed.
• Royal Saltworks at Arc-et-Senans, designed by Claude Nicolas Ledoux, completed.
• The Piece Hall in Halifax, West Yorkshire, opened 1 January 1779, Grade 1 listed Cloth Hall.

• Grand Prix de Rome, architecture: Guy de Gisors and Père François Jacques Lannoy.

• April 10 – James Savage, English architect (died 1852)
• July 8 – Giorgio Pullicino, Maltese painter and architect (died 1851)^[1]
• Edward Lapidge, English architect (died 1860)

• September 30 – Johan Christian Conradi, German-Danish master builder and architect (born 1709)
• November 9 – Carl Johan Cronstedt, Swedish architect and inventor (born 1709)
• Giuseppe Bonici, Maltese architect and military engineer (born 1707)
• Thomas Ivory, English builder and architect working in Norwich (born 1709)
• Richard Taliaferro, American architect working in Williamsburg, Virginia (born c.1705)