Stewart is a registered architect and is passionate about the conservation, adaptation, interpretation and promotion of heritage places, and the design of new buildings in heritage contexts. His extensive experience comes from senior roles with the Queensland Government’s Heritage Branch, National Trust of Australia (Queensland), and most recently in private consulting as the heritage architect for two major projects in Brisbane, Queens Wharf and Herston Quarter.
 
Stewart has also been involved in a range of advocacy and promotional events to raise the profile and understanding of heritage places and conservation, including Brisbane Open House and Great Houses of Ipswich open days.