Dumas House is strategically located at the western gateway of St Georges Terrace, in the western business district of Perth. Located at 2 Havelock Street, West Perth, the site is central to the main streets of the Perth CBD, namely St Georges Terrace, Hay and Colin Streets, and opposite to Fraser Avenue, entry to Kings Park. 

In its immediate surroundings are Parliament House and the entry to one of Perth's premier tourist attractions, Kings Park, all within short walking distance. Coupled with public transport facilities in all main adjoining streets, Dumas House offers staff all the necessary conveniences, as well as ample parking and easy access to one of Perth's main road networks - the Mitchell Freeway.

Dumas House is located on a prominent, elevated site and is clearly visible from many points around the city and wider metropolitan area which only enhances the landmark value of the building.