4 National Circuit

4 National Circuit is a state-of-the-art A Grade office building in the heart of Barton – Canberra's premier Parliamentary precinct.

Occupying a prominent site between National Circuit and Macquarie Street, the building – formerly the Robert Garran Offices – is the flagship asset within the National Circuit precinct.

Designed as a modern urban village, it offers a connected, convenient and contemporary environment tailored to the needs of its public sector tenant partners.

With six levels of quality office accommodation across twin east and west wings, 4 National Circuit also features a vibrant ground-floor café and landscaped courtyards, community library and childcare, business and conference centre, end-of-trip facilities and underground parking for more than 700 vehicles.

The building incorporates advanced environmental features, including water harvesting and double-layer thermally efficient glazing. It holds a GBCA 5 Star Green Star Design and As Built rating, complementing its 5 Star NABERS Energy and Water ratings.

Data as at March 31 2026