The year2005 in architecture involved some significant architectural events and new buildings.

• May 17 – The renovation and restoration ofMies van der Rohe'sCrown Hall at theIllinois Institute of Technology commences with the smashing of the first of the large glass walls, a privilege auctioned oneBay for over $2,500.
• May 20 – TheUnited States Postal Service honors twelve "Masterworks of Modern Architecture" on first class postage stamps.
• October 6–10 – Demolition of the last of theXanadu Houses.

• January 15 –Copenhagen Opera House, Denmark, designed byHenning Larsen.
• March 5 – TheKunstmuseum Stuttgart, Germany, designed by Hascher et Jehle.
• April 6 – New facility for theMilan Trade Fair inMilan, Italy, designed byMassimiliano Fuksas.
• April 14 –Casa da Música,Porto, Portugal, designed byRem Koolhaas'sOMA.^[1]
• April 17 – Expansion of theWalker Art Center inMinneapolis, Minnesota, designed byHerzog & de Meuron.^[2]
• April 28 – TheWynn Las Vegas, designed byJon Jerde.
• May 10 –Memorial to the Murdered Jews of Europe in Berlin, designed byPeter Eisenman.
• May 11 –Southeast Asian Ceramics Museum atBangkok University,Thailand, designed by Architects 49.
• May 30 –Allianz Arena inMunich, Germany, designed by Herzog & de Meuron.
• June –Zentrum Paul Klee,Bern,Switzerland, designed byRenzo Piano.
• July 22 – Tower ofSt Edmundsbury Cathedral inBury St Edmunds, England.
• August 27 – TheTurning Torso inMalmö, designed bySantiago Calatrava,the tallest building in Sweden andScandinavia (2005–present).
• September –Idea Store Whitechapel, London, UK designed byDavid Adjaye Associates.
• October 8 –Palau de les Arts Reina Sofía,Valencia, designed bySantiago Calatrava.
• October 15 – Newde Young Museum inSan Francisco, California, USA, designed byHerzog & de Meuron.
• October 17–18 –National Waterfront Museum,Swansea, UK, designed byWilkinson Eyre.
• October 30 – The reconstructedDresden Frauenkirche, inDresden, Germany, is consecrated.
• specific date not listed
  • Bloomberg Tower inManhattan, New York, United States is completed.
  • 2 Marsham Street in London, designed byTerry Farrell, is first occupied by the British government department, theHome Office, for whom it was built.
  • Maggie's Centre atInverness in theScottish Highlands, a drop-in cancer care centre designed byPage\Park Architects.

• date unknown
  • TheChongqing World Trade Center inChongqing, China.
  • Chelsea Tower inDubai,United Arab Emirates.
  • Q1 Tower inSurfers Paradise, Queensland, thetallest building in Australia (2005–present).
  • Mirador apartment building inMadrid, Spain, designed byMVRDV and Blanca Lleó.
  • Tromsø Library and City Archives in Norway, designed by Kjell Beite.
  • Jaume Fuster Library inBarcelona, Spain, designed by Josep Llinás.
  • Santa Caterina Market roof in Barcelona, designed byEnric MirallesBenedetta Tagliabue.
  • Antvorskov Church,Slagelse, Denmark, designed by Regnbuen Arkitekter.
  • St. Henry's Chapel,Turku, Finland, designed by Matti Sanaksenaho.
  • Private residences
    • Casa Poli,Concepción, Chile, designed byPezo von Ellrichshausen.^[3]
    • Casa Tóló, Lugar das Carvalhinhas, Portugal, designed byÁlvaro Siza Vieira.^[4]
    • Haus Bold,Bad Waldsee, Germany, designed by Thomas Bendel.^[5]
    • Light House,Notting Hill, London, designed by Gianni Botsford.^[6]

• AIA Gold Medal –Santiago Calatrava
• Architecture Firm Award –Murphy/Jahn
• AIATwenty-five Year Award –Yale Center for British Art,New Haven, Connecticut byLouis Kahn
• Driehaus Architecture Prize –Quinlan Terry^[7]
• Emporis Skyscraper Award –Turning Torso bySantiago Calatrava
• European Union Prize for Contemporary Architecture (Mies van der Rohe Prize) –Rem Koolhaas forNetherlands Embassy Berlin
• Grand Prix de l'urbanisme –Bernard Reichen
• LEAF Award, Grand Prix –Henning Larsen Architects for theIT University of Copenhagen
• Mies van der Rohe Prize –Rem Koolhaas for theDutch Embassy (Berlin)
• Praemium Imperiale Architecture Award –Yoshio Taniguchi
• Pritzker Prize –Thom Mayne, ofMorphosis
• Prix de l'Équerre d'Argent –Florence Lipsky andPascal Rollet for the Science Library atOrléans-la-Source
• RAIA Gold Medal –James Birrell
• RIAS Award for Architecture –Scottish Parliament building,Edinburgh, designed byEMBT &RMJM
• RIBARoyal Gold Medal –Frei Otto
• Stirling Prize –Scottish Parliament building,Edinburgh, designed byEMBT &RMJM^[8]
• Thomas Jefferson Medal in Architecture –Shigeru Ban
• Vincent Scully Prize – The Prince of Wales (nowCharles III)
• Twenty-five Year Award –Yale Center for British Art
• UIAGold Medal –Tadao Ando

• January 6 –A. Hays Town, prominent American residential architect based inBaton Rouge, Louisiana (born1903)
• January 23 –Richard FeildenOBE, leading UK architect based inBath (born1950)
• January 25 –Philip Johnson, influential American architect, firstPritzker Prize honoree (born1906)
• March 16 –Ralph Erskine, British architect, designer of theByker Wall (born1914)
• March 22 –Kenzo Tange, leading Japanese architect, winner of the1987Pritzker Prize (born1913)
• June 4 –Giancarlo De Carlo, Italian architect (born1919
• June 30 –Robert Y. Fleming, American architect (born1925)
• December 15 –James Ingo Freed, American architect (born1930)

• Architecture Timeline