
Perched on a sandstone cliff overlooking Sydney’s Northern Beaches, Casaballin is a renovation that reinterprets a modernist pavilion for contemporary family life. Designed by buck&simple, the project builds on the qualities of the original house while introducing a new interior organization centered around gathering, connection, and everyday living.
Set between the headland and the beach, the house occupies a generous site surrounded by lush landscaping and framed by glimpses of the ocean. The original house was defined by clean lines and a restrained palette of natural materials, qualities that provided a strong foundation for the renovation. Yet despite its architectural strengths, it lacked a central space capable of supporting the rhythm of a young family of six.
The renovation responds to this challenge by introducing a new axis through the home, organized around a multifunctional kitchen and informal dining area. Rather than acting as a purely functional room, this space becomes the social heart of the house, bringing together cooking, dining, working, and family interaction within a single environment. The intervention reshapes how the house is experienced, creating a stronger sense of connection between the different living areas.
Materiality plays a central role throughout the project. The new addition draws from the original architectural language while introducing custom walnut and leather joinery that brings warmth and tactility to the interiors.

These materials reinforce the home’s modernist character while ensuring the spaces feel comfortable and durable enough for everyday family life. The kitchen, described as the hardest-working room in the house, balances robust finishes with careful detailing, allowing practicality and refinement to coexist.
Storage, workspace, and living functions are integrated seamlessly into the design, helping maintain a sense of order and openness. Rather than adding complexity, the renovation simplifies the experience of the home, allowing family life to unfold around a clear central gathering place.
The relationship between inside-outside is equally important. Outdoor living has long been central to Australian residential architecture, and Casaballin embraces that tradition through a series of carefully considered interventions. At the far end of the garden, a circular swimming pool becomes both a visual anchor and a social destination.
The retro-inspired detailing and vintage diving board, recall the optimism of Australia’s backyard culture while offering a contemporary space for recreation and relaxation.
Concrete and sandstone hardscaping further strengthen the connection between architecture and site. These materials create continuity between the built form and the surrounding landscape, adding texture and permanence while reinforcing the dialogue between old and new.
























