Hayward was the son of A. E. Hayward, rector of Emley in West Yorkshire. After education at Queen Elizabeth Grammar School, Wakefield, Hayward served from 1914 to 1919 during the First World War with the 7th Battalion of the Duke of Wellington's Regiment, winning the Military Cross. He then studied at Jesus College, Oxford and was called to the bar by Middle Temple in 1923. He wrote on the Law of Town and County Planning (1933) and the Law of Housing (1937), took silk in 1936 and was made a bencher of Middle Temple in 1953. He died in Andover at his home on 11 February 1961, aged 64.
- "Mr. S. Pascoe Hayward". The Times. 13 February 1961. p. 16.