From the beginning European settlers on the Williams River built themslves a variety of buildings for living and other functions. The oldest remaining building in the Williams Valley is probably the much modified Dungog Inn on Dungog’s main street.
As prosperity grew most of the original houses were replaced with grander homes and so the Williams Valley has a fine collection of lovely if not unique Victorian architecture. During the 20th century representative buildings of each style have been built that have added to the architectural landscape of the Williams Valley. Perhaps most interesting from an architectural view is the house now known as Keba in Dungog.
For a heritage listing of the architecture of the three valleys see the Dungog Shire heritage lists. And for an overview of some of the homes and buildings of Dungog see the publication Ah Dungog.