Our History

The COLBORNE ARCHITECTURAL GROUP Pacific was established in Vancouver in 1991 by Stephen Quigley and Catherine Alkenbrack in affiliation with Toronto-based Colborne Architectural Group Inc. This was the successor firm to The Thom Partnership, Architects and Planners, established by R.J. Thom in 1963. Allan Hepburn joined the firm as a Principal in 1994 and recently retired from the firm effective Fall 2014; Catherine Alkenbrack left the firm in 1998 to pursue a private consulting assignment; with the firm for several years previous, Richard Newell became a Principal in 2010. Since incorporation, the Vancouver firm has been fully owned and managed by the local principals, all of whom are graduates of the University of British Columbia School of Architecture.

In the past we have acquired a broad range of experience in the design of various project types including institutional, commercial and residential construction as well as interiors, urban design, planning and feasibility studies. Clients include educational institutions, municipal and provincial governments and public agencies, developers, private corporations and individuals. In July 2008 the firm moved to offices on the top floor of the heritage Lumberman’s Building in downtown Vancouver. Staff size typically ranges from 10-15 people depending on workload, currently including 4 registered Architects. The firm uses up-to-date AutoCAD, Revit and SketchUp software systems.


Combined, the firm’s principals offer over 75 years of project experience.