William Bernard Stedman was born in Ipswich, Suffolk, England on 25 January 1885. He was articled to E. J. Griffith in Margate, Kent from 1902 to 1905 and remained as his assistant until 1908. He also attended Margate School of Art and classes at the Architectural Association Schools in London. From 1909 he was employed as an assistant to Robert Langton Cole (1858-1928).
Stedman qualified as an architect in 1911 and that year commenced practice as an architect in Margate. From 1911 until at least 1939 he was in partnership with John Mortimer Sheppard (1879-1956) as J. M. Sheppard & Partners in Margate and London. During the early 1920s he was also in partnership with William Stanley Grice (1889-1952) as Grice & Steadman in London
Stedman was District Architect at the Ministry of Agriculture and Fisheries (Western District). Small Holdings Architect for Herefordshire County Council.
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 1935.
His address was given as 34 Athelston Road, Cliftonville, Margate, Kent in 1912 and 1914; 9, Gray's Inn Square, Holbom, London in 1923; 39, Bloomsbury Square, London and 31, Leyborne Avenue, Ealing, London in 1926; 15 Eldon House, 15 Carew Road, Ealing, Middlesex [now London] in 1930; and 38 Bedford Place, Bloonsbury Square, London in 1936 and 1939. He died in Ealing, London on 9 February 1964. His address at the time of his death was given as 38 Culmington Road, Ealing, Middlesex.
Adaptation and restoration of farmhouses and other buildings in Herefordshire; minor domestic works, housing, etc., in London and the home counties. [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
Who's Who in Architecture 1923. Edited by Frederick Chatteron. London: The Architectural Press, 1923