About us

Doing business should be a six-star experience for both clients and customers.

At OPP Group, we partner with Top-Tier developers with resilient business models who can trade through all market cycles and deliver a quality product, exceptional customer experience and, most importantly, an outstanding return on investment.

Our expertise honed over many years enables us to identify opportunities in the market place, and through our key relationships, we negotiate exclusive access for the benefit of our customers.

We have specialist teams based in Melbourne and Brisbane/Gold Coast and source quality real estate throughout Australia and Overseas.

At Onyx we partner with the highest calibre developers in Australia and around the world. In times of uncertainty, you can count on us to provide you with the most professional and expert advice to make your buying journey memorable and stress free.

We partner with individuals, accountants, solicitors, financial advisors and finance brokers to assist their clients in a wide range of services such as investment in property, helping them find their dream home or properties for their SMSF funds. We have a wide range of properties available across Australia.

We take the time to nurture relationships to provide the best service in all areas of Real estate. Onyx is built on a foundation of trust, loyalty and service above and beyond anything else.

Join the Onyx Family now and stay up to date with all our current listings and projects as well as all the latest market information and exclusive offers. You can also sign up with us as your buyer’s agent with our extensive network and let us help you find your dream property.

Our Executive Team

Robby Antonio

Founder/ Director
Author/ Entrepreneur

Over 20 years’ experience in finance, an award-winning Bank Manager for Westpac, and award-winning Mortgage Broker, Robby Antonio started the successful mortgage business in 2016 after completing his role with Westpac Bank. Appointed Manager of Technology for UBS running India, London and Sydney teams. Access to many clients through relationships built within the mortgage business, through relationships with developers and financial advisors, accountants solicitors Australia wide.   

Over 10 years’ experience in property, Onyx is built to help you succeed in your property journey. Whether it is choosing one of the many high-class products we have or with us representing you as your buyer’s agent of choice. Robby’s proven success is led front on from passion for service and a commitment to excellence.  

Robby Antonio is launching a children’s foundation that is already active in Australia, Cambodia and Bali. Be part of something truly special and find out more about the foundation and the launch of the wellness foundation for adults to take place in 2024. Giving back to the community is at the core of everything we do.