The Nobbs fonds consists of the work of Percy Erskine Nobbs, George Taylor Hyde, Nobbs and Hyde, Nobbs and Valentine, and Nobbs and Nobbs. 526 projects are documented in the Percy Erskine Nobbs Fonds. Architectural drawings form the core of the fonds, providing a comprehensive listing of the drawings by Percy Nobbs and his associates. Arranged chronologically, the inventory reflects respectively the development of the partnerships Nobbs and Hyde (1910-1944), Nobbs and Valentine (1945-1950), and Nobbs and Nobbs (1950-1960). Hugh A. I. Valentine worked only briefly with Nobbs, spending the bulk of his career with the Bell Telephone Company of Canada. His commissioned drawings and student notebooks cannot be directly related to his work with Nobbs, but are nonetheless described in subfonds 8. Subfonds 6 and 7 describe Percy Nobbs's personal papers and three-dimensional objects designed by him which are in the Canadian Architecture Collection.

File consists of architectural drawings for urban house (detached, basement, 2 floors, attic, 5 bedrooms); brick; wall bearing. File includes 1 presentation drawing (exterior perspective, floor plans), 3 record drawings (floor plans, elevations, section), and 4 photographs (1 plan, 1 finished exterior, 3 finished interiors).

File consists of architectural drawings for urban house (detached, basement, 3 floors, 3 bedrooms), brick, composite. Includes 7 working drawings (floor plans, elevations, sections), 2 record drawings (floor plans, elevations, sections). Also includes 3 photographs (1 finished exterior, 2 finished interiors).

File consists of architectural drawings for city hall. Includes 6 photographs (3 plans, 1 perspective, 2 others).

File consists of sketch drawing of Rouen.

File consists of three development drawings for church (floor plan, elevations, sections).

File consists of architectural drawings for gates and railing. Includes 1 presentation drawing (gateway and railing) and 2 development drawings (gates and railing).

File consists of measured drawing (interior perspective) for church alteration (pendentive).