Born in the French-speaking Switzerland from Italian parents who resided there for business, he studied in Geneva and Paris (at the Ecole des Beaux-Arts) from which he graduated in 1907. He moved to Milan where in 1914 he re-graduated at the Royal Polytechnic in order to practice his profession in Italy. He then began a career as a designer in the field of sports facilities such as racetracks, stadiums and their complementary structures. His design universe, however, was very large and varied, as evidenced by the different architectural aspects, which are identifiable in the rationalism of the time, still soaked from the original neo-classical French style.
He worked not only in Italy but also in several countries of the Central Europe; he also realized several projects in Turkey, then in India, East Africa and South America (including a Jockey Club in Argentina).
His skills gained him the respect of kings, rulers and aristocrats. In 1907 he married Maria Biraghi Lossetti, an aristocratic heiress of the Lords of Vogogna Biraghi Lossetti, who bore him the following year his son Emanuele, who became an architect and his collaborator in Milan. He was an artillery officer in Genoa during the First World War and in 1944 he became the Mayor of Vogogna during the partisan Republic of Ossola.
Vietti-Violi died in Vogogna at 83 on the Christmas Day of 1965. He was still working on the racecourse Parilly of Lyon and at the new church of Villadossola assisted by his assistant at the time, the architect Vladimiro Francioli.
The honors and offices list includes:
- honorary member of the Academy of Fine Arts of Brera in Milan;
- corresponding member of the Academy of Fine Arts, Institute of France, October 1949;
- corresponding member of the Academy of Architecture in Paris, France, from June 1950;
- Silver Medal of the Ministry of Education;
- Grand Officer of the Crown of Italy in 1930;
- Official of the French Legion of Honor, number 43,941, received in 1933;
- Officer of the Order of St. Maurice and Lazarus in 1935;
- Captain of completion in 1932 artillery.
He held a sports architecture lessons on several occasions:
- in 1938 at the University of Dijon, France for a series of conferences on Architecture Sporty and modern in Italy
- in 1951 and at the Institut Technique de Batiment de Travaux Publique in Paris, France, for a conference on Architecture Sport in Italy and abroad.
He debated in Istanbul, Turkey and the Academy of Fine Arts on the theme Architecture Sportiva. A street named after him in the Italian village of Vogogna, Via architect Paolo Vietti Violi.
Important contribution of Vietti Violi at national and international level, has been in the sport. Vietti-Violi noted in Casabella, the international magazine dedicated to architecture: "... the rebirth of the sport and, above all, the spirit of sport in Italy, as he wanted directed and organized by the fascist regime, has itself brought about a massive redesign of sports works".
 His plans for sports facilities have stressed the importance of planning the general context: the public transport and road access, parking and turnstiles of the stadium. He designed and directed the works for the construction of more than 33 tracks, stadiums and sports facilities in Italy and abroad. Including domestic services:
- 1911 Hippodrome of San Siro in Milan, Italy, for the gallop. Winner of the First Prize at the International and project execution. Because of World War I, the work was completed in April 1920.
- 1923 Hippodrome of San Siro in Milan, Italy, for the trot;
- 1923 Racecourse Mirabello in Monza, Italy, for plants gallop and obstacles;
- 1923 Race of Casalone in Grosseto, Italy, with nearby sports facilities;
- 1924 Hippodrome Capannelle in Rome, Italy;
- 1926 Racecourse Agnano in Naples, Italy, for the executive project;
- 1928 Hippodrome Cascine in Florence, Italy, for the trot, for extensions and changes;
- 1928 Hippodrome Cascine in Florence, Italy, for the gallop, with extensions and transformations;
- 1928 Racecourse Merano, Italy, the first plant in 1935;
- 1930 Hippodrome dell'Arcoveggio in Bologna, Italy, for the trot, in collaboration with the engineer Costantini;
- 1933 Racecourse Ankara in Turkey, for the gallop and the complete sport city. Winner of the First Prize at the International and the execution of the project;
- 1934 Hippodrome in Istanbul Turkey, the preliminary design for the gallop;
- 1935 Racecourse Merano, Italy, the final design of the works. Realizzazioned Andreina stables for 260 horses;
- 1937 Federico Caprilli Hippodrome in Ardenza in Livorno, Italy, the drafting and design lighting;
- 1937 Hippodrome of San Siro in Milan, Italy, transformations for the trot and design of stables;
- 1939 Hippodrome Cascine in Florence, processing and design of stables for 200 horses;
- 1939 Racecourse Mirafiori in Turin, Italy, transformation project of the stands and walkways;
- 1939 Racecourse of Addis Ababa in Ethiopia, the transformation project of the stands and tracks and associated sports facilities;
- 1940 Le Bettole Hippodrome in Varese, Italy, transformation project of the stands and walkways;
- 1950 Valencia Racecourse in Venezuela, for the gallop and associated sports facilities;
- 1953 Racecourse Montecatini, Italy, from the grandstands transformation project, lighting and tracks, in collaboration with the Venturini engineer;
- 1953 Hippodrome Cascine in Florence, for the trot with the transformation project of the stands and walkways;
- 1955 Hippodrome in Istanbul in Turkey, for the gallop. Realization of the Stables for 260 horses;
- 1957 Racecourse Adana in Turkey, for the gallop;
- 1957 Hippodrome Sayrne in Turkey, for the gallop, the transformation project of the stands, lighting and tracks.
Subsequent designs include the racecourse of the Lido of Venice, Italy, with the gallop and trot facilities, stables for 260 horses.
In 1913 he went to Argentina, where he was invited for the design of the new headquarters of the Jockey Club of Buenos Aires. Later he went to Bombay in India, Western India Turf Club on the call to select designers for the construction of two racecourses in Bombay and Poona. From 1930 to 1932 he became director of the Monza Autodrome.
In 1932 designs, with the young Hungarian Andreas Benko who works in his studio, Sciesopoli, a mountain colony promoted by fascism and dedicated to Antonio Sciesa hero of the Risorgimento, which is located in Selvino (Bergamo) on the next pre-Alps of Bergamo, in Lombardy, less than 100 kilometers from Milan, which was inaugurated on 11 June 1933. the largest colony is made up of a complex of avant-garde buildings, completed in a very short time. The colony had dormitories, dining rooms, heated swimming pool, cinema, infirmary, a vast 17,000 square meter park and sites for meetings. Among the numerous lenders who operate completely offered 2,580,000 lire, as evidenced by the marble slab of the entrance hall, there was the Duce Benito Mussolini, who donated 5,000 lira for its realization.
In 1937 in Yugoslavia, that is contacted to the racecourse project Zemun Belgrade in Yugoslavia and sports facilities in Sarajevo. In 1937 in Poland, it is contacted to the racecourse project in Warsaw from local Jockey Club. In 1939 in Ethiopia, at the invitation of the Society Encouragement of Horse Breeds (S.I.R.E.), and the request of the Viceroy of Ethiopia, the Duke of Aosta, for complete sports facilities in Addis Ababa. In 1948 in Bulgaria, it is interviewed by the Bulgarian Government for the project to complete sports facilities in Sofia.
In 1950 in Venezuela, he was invited by the Government to study a drainage project for slopes Racecourses. It implements projects for complete sports facilities and the final design for the hippodrome of Valencia, Venezuela. Then implements the project of the Stadio San Martino di Genova.
The architect Vietti Violi has designed numerous indoor during the years of its activity in Italy:
- indoor pool for the complex of sports facilities Aquila in Abruzzo;
- indoor pool for the complex "Casa del Balilla" and related sports facilities Colonia Alpina Sciepoli Selvino near Bergamo;
- indoor pool for the complex "Casa del Balilla" and related sports facilities of Saronno, in Lombardy;
- The architect has created the Sports Hall at the Fiera di Milano, the bike path, which opened in April 1923 and the sports facilities of San Martino d'Albaro, L'Aquila, Merano, Saronno and Milano Marittima (Canella Giuntini, 2009)
In 1936, to 'Ankara was' inaugurated the project of Vietti-Violi for expansion to 60,000 spectators sitting of the 19 Mayıs Stadium Stadium ( "May 19 Stadium Sports"), then the scene of many celebrations of national holidays. In a published description of the project, the Vietti Violi mentions the militaristic connotations of sport in 1930, the stadium complex was "a great and outstanding program that has necessitated the creation of a wide road for military parades" (Bozdoğan, 2001 ). He also participated in the competition to design the mausoleum of Mustafa Kemal Atatürk, in Anıtkabir (Christopher S. Wilson, 2009). Later in his career he led the project in designing the Dolmabahçe Stadium (later renamed BJK Inönü Stadium) in Istanbul, Turkey, which was inaugurated on May 19, 1947.
Civil works projects
Vietti-Violi participated in numerous design competitions of large civil works: hospitals (Pavia), factories, theaters (Genoa), basilicas (Syracuse), public facilities including regional palaces. He realized important villages workers in Villadossola for about 1000 workers and in Pieve Vergonte designed the workers' village, offices, laboratories and factories of the local industrial complex. He participated in numerous competitions:
- competition for the Polyclinic in Pavia (second prize);
- competition for the Palace of Fine Arts in Genoa;
- competition for the Basilica of Santa Croce in Milan;
- competition for the design of the facade of Milan Central Train Station;
- competition for sports center in Rome;
- competition for the theater in Genoa;
- competition for rural houses in Milan;
- competition for the facade of the building of the Prefecture in Bolzano;
- competition for the greyhound stadium in Milan.
The architect Vietti-Violi created numerous private villas projects:
- Villa in via Monferrato in Milan;
- Villa of the Commendatore Locatelli in Milan;
- Villa Grana and offices in locations Giovi in Genoa;
- Villa Castolai in Domodossola;
- Villa Marchese Magognino;
- Chalets of the painter Mazza in Macugnaga;
He also produced numerous projects for residential buildings, hotels and office:
- palace to the Palace Columbia in Genoa;
- palace hotels in Fiumetto;
- palace hotel in Perugia;
- Cantons-Pisa Palace in Milan;
- palace for the Maison de France in Milan;
- building for the property Guzzi in Milan;
- building for the headquarters of the company Nafta in Genoa;
- building for the headquarters of Shell companies in Genoa;
- palazzo della Cavallerizza di San Siro in Milan;
- building for the headquarters offices of the Saint-Gobain company in Milan;
- building for expansion of the hospital medical ward San Biagio in Domodossola;
- palace to the town hall in Macugnaga;
- palace for the Sporting Club in Milano Marittima;
- sports hall in Milan;
- building to the bike path Vigorelli in Milan;
- works of the Fiera di Milano, where the architect built the entrance on Via Domodossola, the palace of the Goldsmiths and the France of the building in collaboration with the architect Boileau Paris.
Projects of religious works
Vietti-Violi realized the religious works projects:
- St. Sebastian Parish church of Cermes in South Tyrol between 1928 and 1929.
- The Redentore Parish church of Villadossola in Piedmont
He participated in numerous competitions of religious works:
- Competition for the shrine of Our Lady of Tears in Syracuse in Sicily (second prize)
- Competition for the conservative renovation of the Shrine of Our Lady of Lut of Premosello in Piedmont (first prize - not realized)
- Competition for the conservative renovation of the Shrine of Our Lady of Boden Ornavasso Piedmont (first prize - not realized)
- Maria Canella, Sergio Giuntini, "Sport e fascismo", Collana La società moderna e contemporanea, Argomenti Storia sociale e demografica - Storia della cultura e del costume, pp. 544, 1a edizione 2009(Codice editore 1501.110)Franco Angeli Edizioni Codice ISBN 9788856815108
- Raffaele Calzini, Paolo Vietti-Violi, Éditions "Les Archives internationales", 1932
- Sibel Bozdoğan, "Modernism and Nation Building: Turkish Architectural Culture in the Early Republic", 2001 by the University of Washington Press, printed in Singapore, ISBN 0-295-98110-5
- Simon Martin, Football and Fascism: The National Game Under Mussolin i - Berg, 2004, New York, USA
- I.N. Aslanoglu, "Two Italian Architects: Giulio Mongeri and Paolo Vietti-Violi during the Periods of First Nationalism and Early Modernism in Ankara," in "Atti del Convegno Architettura e architetti italiani ad Istanbul tra il XIX e il XX secolo", Facoltà di architettura dell' Università Mimar Sinan, Istanbul 27-28 novembre 1995