George Waymouth was born in Islington, London, England in 1845. He was articled to James Tillott (c.1850-?) and Thomas Chamberlain from 1862 to 1865 and briefly remained with them as their assistant. He was also employed as an assistant by the Northampton & Banbury Junction Railway in 1866-67 and to his father, William Waymouth (1804–1888), in London from 1867 to 1870. From 1870 he was in partnership with his father.
George Waymouth was elected a Fellow of the Royal Institute of British Architects (FRIBA) in 1885. His address was given as 13 Moorgate Street, London in 1870 and 1904; Raymond House, Theobald's Road, Gray's Inn, London in 1910 and 1923; Banksmere, Regent's Park Road, Finchley, London in 1914; and Glengriff, King Edward Road, New Barnet, Middlesex in 1923. He died in East Barnet, Middlesex on 24 March 1923.
Rebuilding of Church of Chosham Bois; Board Schools, Grays, Essex; Rectory, Girton, Cambs, and private houses; German Sailors' Home, Poplar; German Walters' Home, Charlotte Street, London, W.C.; German Y.M.C.A. Hotel and Headquarters, City Road, London; German Farm Colony Buildings, Hertfordshire; Cranston's "Waverley Hotel, Southampton Row, London, W.C.; Cranston's "Kenilworth" Hotel, Russell Street, London, W.C.: Brett and Beney's Model Bakery, Islington; Callard and Bowsers' Factory, St. Pancras, London.
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