OK House | Stephen Collier Architect

OK House | Stephen Collier Architect | Photographer: Tom Ferguson

2026 National Architecture Awards Program

OK House | Stephen Collier Architect

Traditional Land Owners

Dharawal people

Year
2026
Chapter

New South Wales

Category
Residential Architecture – Houses (New)
Builder
Owner Build
Photographer
Tom Ferguson
Media summary

Located one hour south of Sydney, the OK House is a compact, inward-looking home designed as a refuge rather than a statement. Conceived for two introverted occupants, the house turns away from ocean views and instead engages the sky, escarpment and surrounding tree canopy, offering privacy without isolation and a strong connection to nature.

Set on a steep, triangular site constrained by bushfire risk, unstable geology and a nearby railway, the house is elevated on four deep piers; sitting clear of the slope and preserving the terrain and existing trees. A central courtyard forms the heart of the plan, bringing daylight, ventilation and seasonal adaptability to every room.

Designed and built by the architect as owner-builder, the project integrates prefabrication, modest materials and passive design strategies to achieve high performance within a tight budget. Sustainability and restraint underpin the project, demonstrating how domestic architecture can support resilience and quiet joy.

Mathieu Ravier (partner of Stephen Collier) 

The house was designed for the architect and me, his partner. The project itself gave us purpose and focus at a time when mental health issues and stress loomed over our lives. Now that we live here, these benefits endure. The OK House is designed with colour and light to let foliage and sky in and keep the world out. Its bright and playful layout, native garden and private courtyard combine to lift the spirits of those who live here or just pass through.

Project Consultant and Construction Team

Building Momentum, Assisting builder and carpenter
QS Plus, Quantity Surveyor
PMI Engineers, Structural Engineer
Jane Irwin Landscape Architecture, Landscape Consultant

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