In addition to Trethewey House itself, Trethewey House Heritage Site also boasts several other buildings and features onsite, notably the Carriage House, Joey’s Playhouse, the Upper Sumas Train Station and the Sylvia Pincott Heritage Gardens.
The mission of the Heritage Abbotsford Society is to be the memory of the community by preserving and interpreting its history. Functions of this mandate are to preserve, study and exhibit artifacts and archival material, and to educate and entertain the public.