3-5 National Circuit, Canberra, ACT
Located on a large treed site with a campus-like feel, this building is composed of two oblong elements in a dynamic geometrical relationship with a wintergarden.
Flexibility is the key to the design. The oblong floor plates are linked at the front and rear with circulation bridges at each level providing access to the lifts and the central circulation stair. Four additional staircases are located adjacent to four services risers and toilet amenities to facilitate separation into as many as four tenancies if required in the future.
Flexibility is also ensured with an 8.4m grid, regular floor plates and absence of columns or intrusions. Energy efficiencies meet Commonwealth Government requirements; the northerly orientation is maximised and the narrow facades of the main office elements facing east and west are sun protected with articulated vertical metal sunscreens to the windows. The north and south windows are protected with horizontal blades.