Award-winning Mary Ryan shows what becomes possible when sustainability, craftsmanship and daily life are considered as one.
Some homes make their presence known immediately. Mary Ryan takes a quieter approach. Its generosity is felt in natural light, moving air, shaded rooms and spaces that open easily to the outdoors. The technical thinking is extensive, but never overwhelming. What remains is a home that feels calm, grounded and made for the people who live there.
That balance has been recognised with the 2026 Master Builders Brisbane award for Excellence in Home Sustainability & Innovation. For O’Shea & Sons Builders, the award is meaningful because it reflects an approach that reaches well beyond the addition of environmental technology. Sustainability was built into the way the home was planned, detailed and delivered.
Passive design first
Designed by Tim Stewart Architects and constructed by O’Shea & Sons Builders, Mary Ryan responds carefully to its climate. Orientation, deep overhangs, protected glazing and cross-ventilation work together to reduce heat gain and invite useful daylight and breezes through the home. High-performance glazing, insulation and durable external materials support that passive response, while solar generation, battery storage and rainwater collection address the demands that remain.
The order of that thinking matters. Passive design first reduces the conditions that drive energy use. Technology then responds to the demand that remains. Rather than being treated as a collection of individual features, the systems form part of one coherent environmental response—practical, measurable and suited to the way the home will actually be lived in.
Where craftsmanship becomes more than a finish
For the OSB team, the work was in carrying that intent through every junction and material transition. Large areas of structural concrete, expansive glazing and carefully concealed services required exact sequencing and close coordination between trades. Elements that appear simple in the finished home often demanded the greatest discipline during construction: allowing structure to remain visually quiet, aligning finishes across thresholds and resolving weather protection without interrupting the architecture.
That is where craftsmanship becomes more than a visible finish. It is present in the planning behind the work, in the conversations held before materials arrive on site and in the willingness to keep refining a detail until it performs as well as it looks. At Mary Ryan, architecture, engineering, products and skilled trades were not separate contributions. Each had to support the others.
Water was considered with the same sense of connection. Rainfall is captured and stored for use across the pool, spa and landscape, helping reduce reliance on mains water. Concealed drainage and carefully resolved external thresholds manage heavier rain while preserving an easy movement between indoors and out. These details are rarely the first things noticed, but they protect the home and its finishes over the long term.
Built to adapt
The home’s sustainability is also found in its ability to adapt. Generous circulation, level transitions and a balance of social and private spaces allow it to support different ages, abilities and rhythms of family life. Durable materials and low-maintenance finishes were chosen not simply for the day the project was completed, but for the years of living that follow.
Mary Ryan is a substantial home, but it is also a measured one. Its achievement lies in bringing ambition and restraint into the same conversation: creating space without wastefulness, introducing technology without allowing it to dominate, and delivering refinement without losing warmth. It demonstrates that environmental responsibility does not need to sit apart from beauty, comfort or generosity. When it is considered from the beginning, it can strengthen all three.
A collective effort
The Master Builders recognition belongs to the collective effort behind the home—architect, builder, consultants, suppliers and trades working with a shared respect for the outcome. It acknowledges not one product or system, but the discipline required to bring many decisions together without losing sight of the people who would eventually call the house home.
For OSB, that is the part worth celebrating. Awards provide an important moment of recognition, but the lasting measure of the work is quieter: how a home feels on an ordinary morning, how well it responds through changing seasons and how confidently it supports the life unfolding within it.
That lived experience is where design intent and construction quality finally meet.
Mary Ryan reflects a belief that has shaped O’Shea & Sons Builders for generations. Good building is not about chasing attention. It is about making thoughtful decisions, standing behind the work and creating homes with the strength, care and character to endure. This home does exactly that—quietly, confidently and in a way that feels entirely its own.
See the project: Mary Ryan, an architectural renovation in Brisbane. More of our work.