The house known as 'Arrunga' at 77-347 Holden Road, Diggers Rest, is significant as a moderately intact, although rudimentary, example of a Late Federation style. Built in the early twentieth century, the house has experienced some alterations and additions, but the original design qualities are still clearly discernible.
The house known as 'Arrunga' at 77-347 Holden Road is architecturally significant at a LOCAL level (AHC D.2). It demonstrates some original design qualities of a rudimentary Late Federation style. These qualities include the recessed hipped roof form, together with two gable roof forms that project at the front and side and the return bullnosed verandah that accentuates the overall diagonal composition. Other intact or appropriate qualities include the single storey height, horizontal timber weatherboard wall cladding, corrugated sheet metal roof cladding, two face brick chimneys with multi-corbelled tops, narrow eaves with decorative timber brackets, turned timber posts with decorative timber brackets, timber verandah fretwork valances, interwar Bungalow styled banks of timber framed double hung box windows under the projecting gables, other timber framed double hung windows, timber window brackets, and the timber framed doorways. The mature cypresses and eucalypts also contribute to the significant setting of the place.
The house known as 'Arrunga' at 77-347 Holden Road is historically significant at a LOCAL level (AHC A.4). It is a representative example of the many small to medium sized farms and homesteads established as a consequence of the historic break-up of the large pastoral estates in Melton Shire in the early twentieth century, in particular the Clarkes' vast Rockbank estate.
Overall, the house known as 'Arrunga' at 77-347 Holden Road is of LOCAL significance.