Jack House, Wahroonga, Heritage residence in Wahroonga, Australia.

Jack House is a single-story residence in Wahroonga with an L-shaped layout that combines glass, wooden beams, and brick construction. The rooms open toward the surrounding garden, creating a seamless connection between interior and exterior spaces.

The land at 62 Boundary Road was the last undeveloped block on the street when Russell and Pamela Jack bought it in 1955. They abandoned a planned steel-framed house because of the cost and built in brick and timber from 1956 to 1957, with Donald W. Taylor as builder. The house was added to the New South Wales State Heritage Register on 24 June 2013.

The residence reflects design principles that connect handcrafted materials with nature, visible in how rooms relate to the surrounding landscape. Both local and international influences shaped the way spaces were conceived.

The house is a private residence at 62 Boundary Road and is not open to visitors; it can be seen from the street. The block was the last undeveloped one on the street, and the council rules on the northern side allowed timber construction and a roof other than tiles, which shaped the design.

The Jacks bought the last undeveloped block on Boundary Road in 1955 and kept the small creek that runs diagonally through it, shaping the plan around the water. Council rules on the northern side allowed timber and a flat bituminous membrane roof, unlike the tiled roofs across the street.