The Treehouse Northern Beaches residence, Sydney real estate building photos, NSW property design photos

The Treehouse in Sydney residence

23 April 2026

Architecture: 43 north architecture

Location: Northern Beaches, Sydney, New South Wales, Australia

Photos © Simon Whitbread

The Treehouse, NSW, Australia

Nestled among the quiet treetops at the end of a steep, hillside property along Sydney’s Northern Beaches, floats the black Treehouse.

The original home presented a series of structural and logistical challenges for the young family who had purchased it—elevated access, disjointed living zones and a lack of holistic spatial flow all limited the home’s usability and long‑term potential. Seeking clarity, cohesion and a stronger relationship with the landscape, the clients engaged 43 North (previously North by North) to explore what the site could truly offer and to transform the dwelling into a functional, expressive and enduring family home.

The design response began with a deep reading of the site’s topography, bushland context and the home’s existing treetop character. Rather than imposing a new architectural identity, 43 North chose to amplify the home’s suspended, retreat‑like quality.

A finely crafted 60sqm addition was introduced to resolve the fragmented plan, create intuitive circulation and deliver the spatial flexibility the family needed. Extending outward into the canopy, the new volume captures filtered light, long bushland vistas and a sense of calm elevation that anchors the project.

The ambition extended beyond adding space; it was about recalibrating the home’s relationship with its environment and with the rhythms of daily life. The addition reorganises movement, improves accessibility and introduces a generosity of scale that the original structure could not support.

A restrained material palette allows the surrounding bushland to remain the dominant visual experience, reinforcing the home’s connection to place. The result is a residence that feels grounded yet elevated, intimate yet expansive—a treetop sanctuary designed to evolve with the family.