1798 in architecture

The year 1798 in architecture involved some significant events.

Buildings

 * September 2 – Opening of the Teatro Comunale (Ferrara) in Italy, designed by Cosimo Morelli and Antonio Foschini.
 * Building of the first major example of Egyptian Revival architecture, Karlsruhe Synagogue in Baden, designed by Friedrich Weinbrenner.
 * Completion of the neoclassical summer retreat at Castle Coole in Northern Ireland, designed by James Wyatt.
 * Completion of the theatre and summer retreat at Ostankino Palace near Moscow.
 * Completion of the Massachusetts State House in Boston, designed by Charles Bulfinch.
 * Completion of the Royal Chapel of St. Anthony of La Florida in Madrid, designed by Felipe Fontana.
 * Completion of the İzzet Mehmet Pasha Mosque in Safranbolu, Turkey.
 * Completion of first São João National Theatre in Porto, Portugal as an opera house, designed by Vicente Mazzoneschi.
 * Opening of the Teatro della Concordia in Iesi, Ancona.
 * Building of Bewdley Bridge over the River Severn in England, designed by Thomas Telford.
 * Opening of the skew Store Street Aqueduct on the Ashton Canal in Manchester, designed by Benjamin Outram.
 * Completion of remodelling of Romney's House, Hampstead, London, to incorporate a studio and gallery, designed by Samuel Bunce.

Births

 * May 8 – Joseph Welland, Irish architect (died 1860)
 * June 27 – Joseph John Scoles, English Catholic architect (died 1863)
 * October 14 – Félix Duban, French architect (died 1870)

Deaths

 * June 25 – Thomas Sandby, English watercolour artist and architect (born 1721)
 * November 2 – Charles de Wailly, French architect (born 1730)
 * December 10 – Laurynas Gucevičius, Lithuanian architect (born 1753)