The present study focuses on the attitudes of the Dominions to the institutional and constitutional matters of the British Empire between the years 1917-1926. The article analyzes the development of the question throughout a series of important events, starting from the War Imperial Conference of 1917 and the Paris peace talks in which the Dominions took a considerable part, through the completion of the Smuts Memorandum from 1921 and the subsequent events such as the Chanak Crisis, the Halibut Treaty, Lausanne and Locarno which affected onsiderably the relations between the Dominions and Great Britain, completing the view with a spotlight on the Balfour Declaration, adopted at the 1926 Imperial Conference.