Dec. 10 1870		born in Brno, the only son among the three children of a sculptor and stonemason
1876 - 1880		Attended primary school at Nová ul. in Brno
1880 - 1883		Attended the Second Upper Gymnasium in Brno and the Upper Gymnasium in Jihlava
1883 - 1884		Attended the Benedictine Gymnasium at Melk in southern Austria
1885 - 1888		Attended the State Technical College at Liberec
1888 - 1889		Attended and graduated from the State Technical College in Brno
1889 - 1890, 1892 - 1893		Studied architecture at the Dresden Technical University, where the influence of Prof. Gottfried Semper remained
1890 - 1891		Completed basic military training, served as a one-year volunteer
1891 - 1892		Resident in Vienna
1893, 1896		Military service at Uherské Hradiště
1893 - 1896		Visited the United States (Chicago World's Fair, visits to St Louis, Philadelphia and New York), returning to Vienna via London and Paris
1896 - 1897		Worked in the ateliČr of architect Carl Mayreder in Vienna
1897		His first solo design - the outfitting of the Ebenstein couturierie in Vienna; the beginning of his theoretical and critical activity in the Viennese Neue Freie Presse - in scathing essays he distances himself from the Viennese Secession
1899		His first important work - the Café Museum in Vienna
1902		Military service at Kroměříž
July 21 1902		Married the actress Lina Obertimpfler at Lednice
1903		Foundation of Das Andere review
1905		Divorced Lina, partnered dancer Bessie Pruce
1908		Published the essay "Ornament and Crime"
1910 - 1911		Designed and built the Goldmann & Salatsch department store on the Michaeler Platz opposite the Hofburg in Vienna, causing a great scandal in which he was supported not only by his friends but also by Otto Wagner
Mar 17 1911		First seminar in Prague, on the theme of "Ornament and Crime"
1912 - 1914, 1920 - 1922		Ran his own private school in Vienna
1913		Seminars in Prague and Olomouc
1917 - 1918		War service in Vienna and St. Pülten
1918		After the dissolution of the monarchy, elects to take Czechoslovak citizenship
1919		Married the dancer Elsie Altmannová, in Vienna strove to have a Ministry of Arts created and published "Richtlinien für die Kunstamt" ("Directives for the Office for Support of the Arts")
1920		Visited the Čapek brothers in Prague
1920 - 1921		Proposed projects for economical terraced housing for a self-build construction group in Vienna--Lainz
1921		Published an anthology of his critical essays from 1897-1900 in Paris under the title "Ins Leere gesprochen" ("Spoken into Emptiness")
1921 - 1924		Lead architect for the urban self-build construction office in Vienna, resolving residential problems
1923		Exhibited at the Salon d'Automne in Paris and became a member
1924 - 1925		Collaborated with the UP works in Brno, managed by Jan Vaněk, and became a member of the editorial board of Vaněk's magazine Bytová kultura ('Indoor culture').
1923 - 1928		Lived in Paris and on the French Riviera, making frequent trips to Austria, Germany and Czechoslovakia
1925		Seminars in Prague and Brno on "Economy in Architecture" as part of the "New Architecture" cycle, and in Brno on the theme of "Housing Estates". Became an honorary member of the Architects' Club in Prague
1926		Divorced from Elsie; designed and built the house for Tristan Tzara in Paris
1927		The organisers of the construction of the exhibition Werkbund colony "Die Wohnung" in Stuttgart-Weissenhof reject his participation.
1928		Invited to represent Czechoslovakia at the first CIAM Congress in La Sarraz; returned to Vienna, and due to projects often stayed in Plzeň (Pilsen)i
1928 - 1930		In collaboration with architect Karel Lhota designed and built the Müller Villa in Prague-Střešovice
18. 7. 1929		Married Plzeň photographer Claire Beck in Vienna
1930		Resident in Plzeň, treatment at Zlatá Hora and in Karlovy Vary (Carlsbad); travelled to Paris with Claire. Spent his 60th birthday in Prague, and awarded an honorary pension from the City of Brno on the initiative of President T. G. Masaryk. A retrospective exhibition of his life's work opened at the Hagebund in Vienna, and a book by H. Kulka and R. Lanyi devoted to Loos published
1931		A travelling retrospective exhibition, organised by the magazine Das Neue Frankfurt, opened in Frankfurt am Main, later moving to various German and English cities, and on to Basle; Loos' pupil Heinrich Kulka published a monograph on his works. Travelled with Claire to Germany, Switzerland, northern Italy and the South of France. Treatment at Jˇchymov, Karlovy Vary and at the Prague-VeleslavĚn sanatorium.
1932		Divorced from Claire Treatment at Karlovy Vary, St Margaret's Spa near Prachatice and the Rosenhuegel Sanatorium in Vienna From the beginning of October to the end of November in Prague for the last time
23. 8. 1933		Died at the Kalkoburg Sanatorium near Vienna, where he was buried; a year later his remains were exhumed and moved to the main cemetery in Vienna