90 Degree Residential is a Western Australian residential building company committed to creating high-quality, sustainable homes that are designed to last. Based in Denmark, WA, we specialise in energy-efficient design and construction that meets the evolving needs of modern living while reducing environmental impact.

As a certified Passive House Tradesperson and proud member of both the Sustainable Builders Alliance and Master Builders Australia, our company is built on a strong foundation of industry knowledge, craftsmanship, and environmental responsibility. We aim to lead the way in regional construction by applying best-practice building methods that reduce energy use, increase comfort, and promote healthier living environments.

Our homes are thoughtfully designed to make the most of natural light, ventilation, and thermal performance, significantly lowering the need for mechanical heating and cooling. Whether we're constructing a full custom build or a compact, off-grid tiny home, our focus remains on sustainable design principles and practical, real-world outcomes.

At 90 Degree Residential, we believe in building smarter — not just bigger. We collaborate closely with clients, local suppliers, and trades to deliver homes that are not only beautifully finished but also meet rigorous energy efficiency standards.

With a strong community focus and deep respect for our natural environment, we strive to be more than just builders — we are partners in creating a sustainable future for Western Australia. Our goal is simple: to build homes that people love to live in, with minimal impact on the planet.

A proud member of Master Builders Australia, Sustainable Builders Alliance, and Certified Passive House Tradesperson