In 1926, municipal authorities adopted a new city layout designed by the prominent Armenian architect Alexander Tamanian; two additional designs for expansion were approved later on in the 1930s and 1960s, both of which retained Tamanian's initial plan.
En 1926, as autoridades municipais adoptaron un novo deseño da cidade deseñado polo destacado arquitecto armenio Alexander Tamanian, dous deseños adicionais para a expansión aprobáronse máis tarde nos anos 1930 e 1960, os cales mantiveron o plan inicial de Tamanian.