At William Maxwell, we are committed to delivering exceptional quality. We don’t just build properties; we create a legacy.

Our approach is grounded in crafting homes and developments that are designed to make a lasting impression and stand the test of time.
Completed Projects
At William Maxwell, we take great pride in the projects we complete. Each development reflects our commitment to quality, and we are excited to continue growing our portfolio of successful projects. We look forward to sharing updates on our completed works and future ventures as we continue to make a positive impact in the communities we serve.
A Commitment to Quality

We believe that the foundation of a successful project is rooted in quality. That’s why we ensure that every detail, from the materials we use to the methods we employ, reflects our commitment to excellence. This dedication sometimes means going the extra mile to ensure the highest standard of work, but we firmly believe that the benefits of this approach are felt by everyone involved.
We value transparency and integrity in everything we do. From the initial consultation to project completion, we communicate openly and honestly, ensuring you’re always in the loop. We believe that building trust with our clients is just as important as building quality homes, and we’re proud of our reputation for delivering on our promises.
Our team is driven by a strong work ethic and a dedication to delivering results. We take pride in going above and beyond, pushing ourselves to meet deadlines without sacrificing quality. It’s this determination and commitment that sets us apart and ensures every project is completed to the highest standard.
You can count on us to be there when we say we will and to deliver what we promise. We understand the importance of meeting deadlines and maintaining consistent quality throughout the project. Our clients know they can rely on us to follow through, and that’s a reputation we work hard to maintain.



Who We Are

With over 20 years of experience, John Castellano has a wealth of knowledge in property development and construction. Having held Executive Management positions at some of Australias largest land development and construction companies he has successfully delivered thousands of homes, and his extensive experience in land development, gained through his tenure at Stockland, has helped shape many thriving communities.

Daniel O’Brien brings a unique blend of property development and financial expertise to William Maxwell. With over 20 years of experience as both a mortgage broker and property developer, Daniel has overseen the successful completion of numerous land subdivisions and development projects.
Together, John and Daniel represent a partnership built on a shared passion for property and a dedication to achieving exceptional results. Their combined experience in both the construction and financial sectors allows them to offer a comprehensive service that ensures every project is executed to the highest standards, with a focus on long-term value and sustainability.
Contact Us
We would love to discuss your next project and explore how we can help bring your vision to life. Whether you're looking to build, develop, or invest, our team is here to offer expert advice and exceptional service every step of the way.

