On the 1st of January 1919, there was published a Manifesto on the formation of the Byelorussian Soviet Socialist Republic. There was formed the government of workers and peasants. For the first time, the Belarusian people got their statehood. Minsk was made the capital of the Republic. The Bolshevik party headed by V.I. Lenin was the initiator of the Byelorussian Soviet State.

Construction pattern and amenities in that provincial town, which had suffered from the imperialistic and civil war, were not fit for the new times. Work on rebuilding of destroyed residential houses and public buildings, reconstruction of factories and plants, construction of new edifices was being carried out almost until the 1930's. It is in those days that the workers' settlements like Komintern, Grushevsky, Pushkinsky and others came into being near industrial enterprises.

In 1925, draining of Komarovskoye and Slepianskoye bogs located within the city boundary started, planting of trees and gardens on a wide scale also began. However, there being no general city planning scheme, the issues of rebuilding and improving the planning modules were not fully resolved.

In 1926, professor of architecture V. Semyonov drew up a draft reconstruction scheme. In the 1930's, new large building complexes appear, among which two are singled out. They are: the University campus and clinical hospital №1. In 1934, the building of Lenin State library was constructed.

In the end of 1920's, the work on water-supply and sewage system development, as well as streets improvement began. At that time, there appeared electric trams, which replaced the horse trams. A benchmark in the republic's and its capital's city construction was the House of Government of the BSSR (1929-1934, architect Langbard's project). Construction of this largest public building (240000 cubic meters) resulted in the formation of a new city-center, the Lenin Square. The new building's architecture and its organic connection with the monument to V. Lenin gave a great patriotic impression.

The House of Government survived by miracle during the city liberation from Hitler invaders on July, 3 1944. This was made possible by the rapid advancement of the Red army and partisans. Our soldiers found more than 100 German delayed-action air bombs, more than 250 kg each, and large quantity of explosives. Today the House of Government is still one of the finest public buildings in the city.

In 1933-1936, the first master plan of Belarusian capital's reconstruction and development was drafted by the Leningrad division of RSFSR Giprogor (State Institute of city design). It provided for improvement of its functional zoning by constructing dwelling and industrial districts, city center reconstruction and founding a square near the Government House.

According to architect I. Langbard's project, 3 major public buildings were later erected in Minsk. These are the Red Army House (Officers House), Opera and Ballet theatre and the main building of BSSR Academy of Sciences.

Afterwards, according to the project of architects A. Voinov and V. Varaksin, the building of the Belarusian Communist Party's Central Committee was erected. The strictness, monumentality, integrity of the architectural appearance, good quality of work and infrastructure are the main features of this building, which became an organic part of the city's postwar central ensemble. In the middle of 1930's, according to the project of architect Makletsova the House of Specialists was erected (not survived).

In 1939, the building of 2 bow-shaped houses in Sovetskaya street began - the area of the future Kruglaya (Round) and later Pobedy (Victory) square (architects R. Stoller and A. Bregman). It became possible to use them 2 years after the war already. The new buildings greatly changed the appearance of the city's central district. However, the outskirts also underwent reconstruction. The new north-east district began to form during these years. Besides the main building of the BSSR Academy of Sciences, other buildings of this institution appeared here, as well as the Polytechnical academy, Geophysics observatory, Polytechnical school, Physical Education Academy, radio making plant. All these buildings introduced new features of the city layout. The majority of them up till now form an important part of the city's architectural ensemble.

During the construction, special attention was paid to the improvement of people's social environment. The new hospitals, polyclinics, maternity homes, children's establishments had been opened before the war

The city with the population of 260000 people in the year 1940, became a large industrial and cultural center. Further work on Minsk reconstruction was interrupted by the nazi invasion.