Consistent with Walter Burley Griffin's Garden City design, the National Triangle is characterised by streets lined with large deciduous trees, and buildings set in expanses of grassed parkland. Consequently, it has a very open feel and buildings are located several minutes walk away from one another. It was Griffin's original intention for more grand government buildings to be located within the precinct, but these have not eventuated as yet. within the National Triangle is strictly controlled by the National Capital Authority, an agency of the Commonwealth Government (not the ACT Government) within the Department of Infrastructure, Transport, Regional Development and Communications.