ABOUT US

We’re a boutique design and construction company dedicated to crafting custom homes.

One Co Building takes pride in its years of design-build expertise across luxury property projects. Our meticulous attention to detail and unwavering commitment to quality has earned us a reputation as a premium home builder in Australia.

With an emphasis on superior craftsmanship and the finest materials, we bring to life luxurious spaces that exude sophistication and timeless beauty.

Justin Keirouz
Founder & Director

Bringing over 10 years of invaluable experience to the building industry, Justin’s passion for construction and design has been the driving force behind our team’s excellence in delivering high-quality results.

His extensive expertise and exceptional leadership have paved the way for our company to establish itself as a trusted name in the industry. Moreover, his unwavering commitment to client satisfaction remains the foundation of our achievements, as he tirelessly ensures that every client receives the utmost care and exceptional service.

Beyond his professional achievements, Justin’s life is enriched by his loving family. With two children and a mini Cavoodle named Sushi, his family plays a significant role in his life. Their support and presence inspire him to continuously strive for success, both personally and professionally.

TESTIMONIALS

Allan Ghadbad

“The quality of work from Justin and his workers is incredible, additionally with the fair pricing you can’t go wrong. Highly recommended.”

Edy Chahine

“I’ve personally worked with Justin and his team on many jobs ranging from small repairs to much larger remediation and renovations and can happily say he and his superb team have extensive trade knowledge, a keen attention to detail, and above all, thrive on customer satisfaction.”