Kavlashvili was among the most prolific Georgian architects of the Soviet period. His works include some of the most inventive civic architecture in the capital city of Tbilisi, including the Laguna Vera swimming complex and the Central Bus Station. Kavlashvili also served as Chief Architect of Tbilisi (1970-1974; 1980-1990), overseeing the preservation of Old Tbilisi and the creation of the country's first urban historic district in 1975.