Hayes and Scott, an architecture firm, was founded by Edwin James Hayes (1918-1997) and Campbell Royston Scott (1921-2007) in Brisbane in 1946. The architects met in 1938 when Scott joined the office of Chambers and Ford, where Hayes was an articled pupil. Initially they traded as E.J. Hayes and C.R. Scott. They rapidly made their mark with early commissions and houses that attracted awards and publicity. They tended to divide up projects geographically, with Scott generally responsible for projects in Brisbane, Toowoomba and wider Queensland, while Hayes oversaw projects on the Gold Coast. They also ventured into furniture design, at one point working with the Danish Furniture Company of Brisbane to create bespoke furniture for their residential projects. In the late 1950s, in an effort to rid themselves of being stereotyped as "the Brisbane House Designers", they actively sought non-residential commissions, such as large scale university commissions.

Notable residential projects include the Griffin House at St Lucia and Jacobi House at Indooroopilly, Brisbane, as well as the Harvey Graham Beach House in Surfers Paradise, Gold Coast. Commercial projects include the Vogue Theatrette, Henry Beirne Douglas Memorial Chapel at the St Columbans Christian Brothers College, Albion and the Queensland Conservatorium of Music, Brisbane.

Architects employed by Hayes and Scott include George Henderson (who was briefly made partner in the 1960s), Allan Kirkwood, Ian D. Charlton, John Dalton, Jon Voller, Malcolm R. Cummings and Robin Gibson.

Hayes and Scott was succeeded by Hayes, Scott and Henderson from 1965 to 1967, then the firm returned to operating as Hayes and Scott until 1984, when Edwin Hayes and Campbell Scott retired from practice.