In the course of the February Revolution the convent building had been burnt down, and its ruins seemed suitable for a foundation of a new building. The building of the Riigikogu was designed by architects Eugen Haberman and Herbert Johanson, and it was inaugurated on September 12, 1922. Only the southern wing is a little wider. Both these styles agree well with the buildings at Toompea that were constructed earlier. The Karelian granite exterior framework of the hall windows is almost like an elaboration of national Romanticism towards Expressionism.
Expressionistic motifs are even more dominant inside the house.
The high vaulted and fluted ceiling has been painted lemon yellow. It is separated from the wall by a zigzag cornice which hides lamps. The use of reflected shadeless light coming from a hidden source was very innovative in 1920s. The walls of the sitting chamber are ultramarine, and the jagged door and window jambs are rusty brown. Furniture is of light birch plywood decorated with contrasting black details.