In 1968, the Trust, as part of a joint venture with La Societe Guernesiaise, established the Guernsey Folk Museum in Saumarez Park.
The museum describes the everyday lives of the people of Guernsey over the last 250 years through a selection of objects and costumes.
The Trust headquarters is at 26 Cornet Street, which may be the earliest remaining complete building within Saint Peter Port's medieval boundaries.
The building now houses information detailing the restoration process and an event space for public and private functions.
The Trust holds large number of properties across Guernsey, ranging from traditional buildings to areas of natural beauty along the island's south coast cliffs.