- El Capricho, 1883-1885, Comillas
- Casa Vicens, 1883-1888, Barcelone
- Finca Güell, 1884-1887, Barcelone
- Palais Güell, 1885-1889, Barcelone
- Collegi de Santa Maria de Jesús, 1889-1894, Barcelone
- Crypte de la Colonia Güell, 1898-1915, Santa Coloma de Cervello
- Casa Calvet, 1899-1904, Barcelone
- Bellesguard ou Casa Figueras, 1900-1909, Barcelone
- Casa Batlló, 1904-1906, Barcelone
- Casa Milà (La Pedrera), 1905-1907, Barcelone
- Parc Güell, 1900-1914, Barcelone
- Sagrada Família, 1884-1926, Barcelone
- Colegio Teresiano de Barcelona, 1889, Barcelone
- Palacio Episcopal de Astorga, 1889-1915 Astorga
- Casa de Botin, 1892, León
- Série Diatom, 1925-50
- Rush City Reformed, 1925-1930
- Lovel Health House, 1927-29, Los Angeles, Californie
- Van Der Leeuw Research House, 1932-1966, Los Angeles
- Koblick House, 1933, Atherton, Californie
- Mosk House, 1933, Hollywood, Californie
- Universal-International Building, 1933, Hollywood, Californie
- Beard House, 1934-35, Altadena, Californie
- Scheyer House, 1934, Los Angeles, Californie
- Sten et Frenke House, 1934, Santa Monica, Californie
- Ecole Corona, 1935, Bell, Californie
- Von Sternberg House, 1935, San Fernando valley
- Appartments Landfair, 1937, Westwood, Californie
- Miller House, 1937, Palm Springs, Californie
- Ralph Waldo Emerson Junior High School, 1938, West Los Angeles
- Channel Heights Community, 1941-43, San Pedro, Californie
- Nesbitt House, 1941-42, Los Angeles, Californie
- Centres sociaux ruraux, 1944-45, Porto Rico
- Kaufman Desert House, 1946, Palm Springs, Californie
- Bailey House, 1946, Santa Monica, California
- Case Study House N°20, 1947-48, Pacific Palisades, Californie
- Tremaine House, 1947-48, Montecito, Californie
- Wilkins House, 1949, South Pasadena, Californie
- Hinds House, 1951, Los Angeles, Californie
- Moore House, 1952, Ojai, Californie
- Kester Avenue Elementary School, Los Angeles, Californie, 1953
- Auerbacher House, 1953, Redlands, Californie
- Eagle Rock Park Clubhouse, 1953, Los Angeles, Californie
- Chuey House, 1956-1958, Los Angeles, California
- Taylor House, 1964, Glendale, Californie
- Kuhns House, 1964, Woodland Hills, Californie
- VDL Research House II, 1965-66, Los Angeles, Californie
- Bucerius House, 1966, Navegna, Suisse
- Delcourt House, 1968-1969, Croix, Nord
- Logements 1968 Mörfelden,Francfort, Allemagne
- The Peak Club, Kowloon, Hong Kong, 1983-84
- Office Building in Kufurstendamm 70, Berlin, Allemagne, 1986
- Berlin IBA Housing, Berlin, Allemagne, 1987-93
- Azabu Jyuban Building, Tokyo, Japon, 1987
- Tomigaya Building, Tokyo, Japon, 1987
- Al Wahda Sports Centre, Abu Dhabi, Emirats Arabes Unis, 1988
- Victoria City Areal Project, Berlin, Allemagne, 1988
- Haffenstrasse Office and Residential Development, Hambourg, Allemagne, 1989
- Vitra Fire Station, Weil am Rhein, Allemagne, 1991-93
- Tokyo International Forum, Tokyo, Japon, 1989
- Remodelling Project for Leicester Square, Londres, Royaume-Unis, 1990
- Zolhof 3 Media Park, Düsseldorf, Allemagne, 1992-93
- Hotel and Residential Complex in Abu Dhabi, Emirats Arabes Unis, 1990
- Music Video Pavilion, Groningen, Hollande, 1990
- Moonsoon Restaurant, Sapporo, Japon, 1990
- Osaka Folly, Japon, 1990
- The Hague 2 Villas, La Haye, Hollande, 1991
- Extension to Billie Strauss Hotel, Nabern, Allemagne, 1992
- Cologne Rheinauhafen Redevelopment, Cologne, Allemagne, 1993
- Carnutum Museum (Pfaffenberg Project), Vienne, Autriche, 1993
- Spittelau Viaduct, Vienne, Autriche, 1994
- Cardiff Bay Opera House, Wales, Royaume-Unis, 1994
- 42nd Street Hotel, New-York, Etats-Unis, 1995
- Habitable Bridge over the Rives Thames, Londres, Royaume-Unis, 1996
- Luxembourg Philarmonic Hall, Luxembourg, 1997
- Museum of Islamic Art in Qatar, Doha, Qatar, 1997
- LFone / Landesgartenschau 1999, Weil am Rheim, Allemagne, 1997-99
- New Campus Centre for IIT, Chicago, Etats-Unis, 1998
- Extension of Reina Sofia Museum, Madrid, Espagne, 1999
- Museum for the Royal Collection, Madrid, Espagne, 1999
- Mind Zone, Millenium Dome, Londres, Royaume-Unis, 1999-2000
- Art Museum Graz, Autriche, 1999
- UNL / Holloway Road Bridge, Londres, Royaume-Unis, 1999
- Car Park and Terminus Hoenheim-Nord, Strasbourg, France, 1999-2001
- Bersigel Ski Jump, Innsbruck, Autriche, 1999-2002
- Rosenthal Center for Contemporary Art in Cincinnati, Etats-Unis, 1999-2003
- Contemporary Arts Centre in Rome, Italie, 1999
- Bibliotheque Nationale du Quebec, Canada, 2000
- La Grande Mosquée de Strasbourg, France, 2000
- Ferry Terminal in Salerno, Italie, 1999
- Science Centre Wolfsburg Phaeno, Allemagne, 2000
- JVC Hotel in Guadalajara, Mexique, 2000
