Castle & Warren was an architectural formed by Sydney Ernest Castle (1883-1955) and Gerald Warren (1881-1936) in Wandsworth, London, England in 1908. Examples of their work are featured in 'The Studio Yearbook for Decorative Art' 1910 - drawing of a house near Ottershaw, Surrey designed by Castle & Warren (p.26); 'The Studio Yearbook of Decorative Art' 1911 - a drawing of a cottage at Byfleet; 'The Studio Yearbook of Decorative Art' 1913 - a drawing of a a house at Weybridge, Surrey (p.12), a drawing of a house at Gerrard's Cross (p.12), a cottage in Surrey (p.13), a photograph and floor plan of 'Waverley', a house in Weybridge, Surrey (p.14), a drawing of 'Waverley', a house in Weybridge, Surrey (p.15), and a photograph and plan of a house at Weybridge, Surrey (p.16); and 'The Studio Yearbook of Decorative Art' 1914 - two drawings of houses at Byfleet in Surrey (p.14) and a drawing of a house at St. George's Hill, Surrey (p.15). The partnership was dissolved in 1918