In October 1913, (after his design for the city was selected from some 137 entries) Walter Burley Griffin was appointed Federal Capital Director of Design and Construction of Canberra for a period of three years.
In April 1916, Cabinet reviewed the agreement for a further three years. In 1919 it was extended by quarterly periods. Between 18 October 1913 and 15 November 1915, Griffin performed no substantial part of his duties under this contract with the Commonwealth. A Royal Commission into the Department of Home Affairs, headed by Wilfred Blacket, reported that necessary information and assistance had been withheldfrom Griffin, his powers had been unsurped by certain officers and that there was a faction in the Department hostile to Griffin and to his design for the Capital City.
By the end of 1915, Griffin had taken control of the construction of Canberra. By 1918, staff employed in the Office of the Federal Capital Director of Design and Construction consisted of nine draftsmen engaged on city plans and four clerical staff.
On 22 January 1921, a Federal Capital Advisory Committee (CA 292) was appointed by the Government and Walter Burley Griffin's services were terminated. The design and construction of the city was effectively transferred to the Department of Works along principles set forth by the committee which essentially proposed development in three stages. Sources:
1. L. Wigmore, The Long View, F. W Cheshire Pty Ltd, Melbourne 1963 2. Federal Guide 1918 (p. 38), 1921 (p.38)
3. F. Watson, A Brief History of Canberra, Federal Capital Press of  Australia Ltd, 1927
 

Historical agency address
Old Money Order Office,Little Bourke Street,Melbourne?[ Canberra - Subject to further research]