Designed and constructed in 1989 by Australia’s leading architect, Harry Seidler, 9 Castlereagh is a landmark in Sydney architecture. Unique and exceptional in its design, 9 Castlereagh is instantly recognised amongst the towers dominating the Sydney skyline.

The foyer offers towering palms, rainforest plants and lush undergrowth on one of the busiest streets in the Sydney CBD. Above, large outside gardens on levels 9, 13 and 19 provide almost every floor with an outlook over, through or down onto trees.

Located in the heart of Sydney's CBD, top end of town, with a significant frontage to Castleregh Street, this premium building comprises 31 levels of A grade office accomodation, a groudn floor child care centre and parking for 74 cars, 50 of which are incorporated into an automated stacking system.