Robert George Muir was born in Camberwell, Surrey [now London] on 27 January 1888. After studying at University College, London, he was articled to William John Almond (1870-1955) from 1904 to 1907. He qualified as an architect in 1912. He was elected an Associate of the Royal Institute of British Architects (ARIBA) in 1912 and a Fellow of the Royal Institute of British Architects (FRIBA) in 1920.
He commenced independent practice in Woking, Surrey and London in 1909. He was later in partnership with Kenneth Wood (1869?-1943) and John Sarvis (1873-1928) in the London-based architectural firm Wood, Sarvis & Muir. The partnership was dissolved in 1928.
His address was given as 15 Elens Road, Ealing, London in 1912; Station Approach, Gerrards Cross, Buckinghamshire in 1912 and 1939 1, Raymond Buildings, Gray's Inn, London in 1923 and 1939. He died in Gerrards Cross, Buckinghamshire in September 1968
"Bull Mead", Gerrard's Cross, 1911; "Badminton House", Gerrard's Cross, 1912; " Rosegarth", Gerrard's Cross, 1923; dye works, Clapham, 1913; and a large number of domestic works — principally in South Bucks. [Source: Who's Who in Architecture 1923]
Directory of British Architects 1834-1914. Compiled by Antonia Brodie, et al. Volume 2: L-Z. London; New York: British Architectural Library, Royal Institute of British Architects/Continuum, 2001
‘Obituary’. Building vol. 215, 12 July 1998 p.67
Who's Who in Architecture 1923. Edited by Frederick Chatterton. London: The Architectural Press, 1923