They were joined in the practice by J E Trollope and they became involved in the design of Arts and Crafts housing in London's west end.

Giles had business interests in the City of London and was noted in 1867 as being a Director of the Imperial Guardian Life Insurance Company.

Giles' practice was first at 2 Verulam Buildings, London in 1864 and he was to move to 28 Craven Street, Charing Cross by 1868.

[14] By 1866 Giles was in partnership with Edward Biven at 28 Craven Street, when they designed an Infirmary for the St. Pancras Guardians of the Poor.

Work by them includes: By 1888 Giles and Gough were joined by John Evelyn Trollope, an architect who had trained under Sir Arthur William Blomfield.

Also they built housing in London, in the Queen Anne revival style, normally in red brick and using terracotta decorative panels.