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Street elevation of the Saltwater Residence concept in Mermaid Beach, showcasing a modern composition of off-form concrete, timber screening, and glass designed to withstand coastal conditions.
Mermaid Beach · Residential · 2 min read · Studio Project

Saltwater Residence

A Coastal Sanctuary Designed to Last

Brett McDonald · Principal Architect · 2026

Salt air is corrosive. The design challenge is choosing materials that endure.

Situated on the eastern edge of Mermaid Beach, facing the full force of the Pacific, this residence confronts the reality of its environment. Salt, UV, and relentless onshore wind - the elements that make beachfront living desirable also test the longevity of a building. The Saltwater Residence is designed to embrace these conditions rather than fight them.

Vertical architectural detail of the Saltwater Residence facade, highlighting the textural contrast between the off-form concrete structure and vertical timber battening used for privacy. A study in contrast: the permanence of off-form concrete anchors the structure, while vertical timber battening softens the edge and provides adjustable privacy from the street.

Resilient by Design

Off-form concrete anchors the home. Textured and sculptural, it is selected for its high resistance to salt air, weathering gracefully to improve with age. 

The material provides thermal mass to help moderate internal temperatures through humid Gold Coast summers, designed to minimise the maintenance cycles often associated with painted finishes.

To balance the concrete, timber battening introduces warmth and light control. The material palette is responsive: robust where the home faces the ocean, and warm where it faces the interior.

Open-plan coastal kitchen featuring a monolithic stone island and warm timber joinery, with stackable glass doors fully retracted to connect the dining space to the ocean horizon. One continuous ground plane. The kitchen and dining spaces are positioned to capture the ocean light, with glass walls that stack away completely to dissolve the boundary between the interior and the dunes.

One Continuous Ground Plane

The ground floor is conceived as a single, fluid space. From the kitchen through to the living and dining areas, the room extends to the pool terrace and the dunes beyond. The glass walls are designed to stack away completely - dissolving the boundary between the living room and the coastline.

Whether cooking, hosting, or relaxing, the layout maintains a clear visual connection to the water.

Private Retreat Above

Upstairs is a sanctuary.  The master suite features operable timber screens designed to adapt to the rhythm of the day. These can be opened to welcome the sunrise or closed to provide shade and privacy from the beach track below.

Coastal breezes draw naturally through the central circulation spine, supporting passive cooling and reducing reliance on mechanical air conditioning. This is architecture designed to adapt to coastal living - passive, quiet, and enduring.

Master bedroom suite overlooking the Pacific Ocean, featuring floor-to-ceiling sliding glass doors and an external timber pergola for passive solar control and shade. A private retreat above. The master suite utilizes operable timber screens and deep overhangs to control light and airflow, allowing the ocean breeze to cool the room naturally.

A robust sanctuary on the Pacific edge — where horizontal planes and vertical blades frame absolute openness to the horizon, while timber screening provides shelter and privacy. Materials chosen for how they age, not just how they look.

Concept DesignResidentialCoastalMermaid BeachConcreteLuxurySustainable

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