[2] Located on Middle Harbour at its uppermost reaches, Roseville Chase is a secluded and bushy suburb.

North of Warringah Road (Upper Chase), the residential development is lighter and is largely surrounded by bushland.

The area is defined by the gully of Moores Creek to the west and north, plus Middle Harbour to the east.

Captain Arthur Phillip's search for "good land, well watered" led to the discovery and colonisation of the rough shores of Roseville Chase, where Samuel Bates built a farm at Echo Point on the edge of what is now Middle Harbour.

Later, the area was settled by Europeans like David Mathew and Richard Archbold, whose property eventually extended to Moores Creek and became the site of an orchard.