In 1910 Leonid Sologub graduated as an architect artist and was granted an oversea pension. He made a range of competitive architecture projects, which gained various awards and were implemented. 
 

Leonid Sologub was friends with the artist Mikhail Larionov. He participated in exhibitions of the World of Art group in Moscow and St. Petersburg in 1912 – 1913 and became its member in 1918. In 1912 he founded the Association of Painters, Architects and Sculptors on the basis of his art studio. Titled the Studio of Three Arts, it was included into the Artists Union and was officially registered in 1917. 

 

The artist volunteered to the front during World War I and was awarded the St George's Cross. His front-line sketches were published in the Niva magazine. In 1916 Leonid Sologub had an exhibition of life studies and drawings At the War. 

 

From 1919 the artist traveled across China, Japan (even had his personal exhibition in Tokyo), Ceylon, India, Greece, Italy, and Constantinople. In 1922 he moved to Holland and settled in Hague. The same year he displayed his Constantinople landscapes in the Autumn Salon and held his personal exhibition in R. Duncan’s Gallery in Paris. Leonid Sologub participated in the Big Exhibition of Russian Art in Belgrade in 1930 and the Russian Art Exhibition in La Renaissance Gallery in Paris in 1932. He lived a very active artistic life in the Hague with repeated personal exhibitions. His works were exhibited in Salon des Independants (1928 – 1930) too. Over 350 works by Leonid Sologub are kept in the Pushkin Museum of Fine Arts, Moscow.