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The year 1897 in architecture involved some significant events.
- May 1
- May 12 - The new Oxford Town Hall, designed by Henry Hare, is officially opened in England.
- May 16 - The Teatro Massimo is inaugurated in Palermo; it is the largest opera theatre in Italy and the third in Europe.
- November 1 - The Library of Congress Building in Washington, D.C., designed by Paul J. Pelz, is opened.
- Christmas - The Cathedral of St. Vincent de Paul, Tunis, is completed.
- The Secession Building, Vienna, designed by Joseph Maria Olbrich is completed in Austria.
- Glasgow School of Art, designed by Charles Rennie Mackintosh, is begun in Scotland.
- The Arts and Crafts movement house Munstead Wood, designed by Edwin Lutyens for Gertrude Jekyll, is begun in England.
- The Flatiron Building of Atlanta, Georgia, United States is completed, five years before New York City's more famous structure.
- The Battenberg Mausoleum, Sofia, designed by Hermann Mayer, is completed.
- The Weaver building, a mill at Swansea in Wales, becomes the first building in the United Kingdom to be constructed from reinforced concrete, by L. G. Mouchel to Hennebique patents.
- Dresden Hauptbahnhof railway station in Germany, designed by Ernst Giese and Paul Weidner, is completed.
- Restoration and remodelling of Castelldefels Castle in Spain by Enric Sagnier is completed.
- January 2 - William Henry Harrison, American architect working in Whittier, California (died 1988)
- January 23 - Margarete Schütte-Lihotzky, Austrian architect (died 2000)
- February 11 - Jacob Christie Kielland, Norwegian architect (died 1972)
- February 25 - Elisabeth Coit, American architect (died 1987)
- April 18 - Charles N. Agree, American architect working in Detroit (died 1982)
- May 15 - Rudolf Schwarz, German architect (died 1961)
- August 16 - Helge Thiis, Norwegian architect and restorer (died 1972)
- September 9 - Nancy Lancaster, née Perkins, American-born interior decorator (died 1994)