Stewart Memorial Church is a wheelchair accessible heritage site. The exterior architecture features a neo-Gothic façade overlying the original clapboard structure. The interior is designated historical for its original pressed tin ceiling and dark wooden curved pews. A heritage corner is set up where photographs, pastors' roster and religious artifacts may be viewed. On the exterior west-facing wall, there is a bronze plaque designating the site of the first Canadian Masonic Lodge of Prince Hall Masons. It also illuminates the connection between the Prince Hall Masonic Order and the Underground Railroad.