Professional Builders in Cairns

Tailored Granny Flats in Cairns

Adding a granny flat to your property opens up a world of possibilities, providing you with valuable extra space, flexibility and even the potential for an added income source. At Justmill Carpentry & Building, we specialise in designing and constructing custom granny flats that cater to your own needs while enhancing the overall aesthetic of your home.


Whether you’re looking for a space to accommodate family members, offer guests their own private retreat or simply rent out, our expert team can bring your vision to life. With over 25 years of experience serving Cairns and the Northern Beaches, we’re dedicated to delivering top-quality builds that align with your budget and personal style. Every granny flat we create is a unique reflection of the homeowner’s requirements, and we ensure a seamless approach from start to finish.


Contact us today on 0419 715 863 to discuss your ideas and receive a free quote.

Enquire Here

Tell us about your granny flat project

Contact Us

Functional, Comfortable Spaces Built for You

We understand that a granny flat should feel like a natural extension of your home—both functional and welcoming. That’s why each project we take on is custom-designed to match your specific needs, whether it’s for elderly parents, a guesthouse or even a rental studio. Our team at Justmill Carpentry & Building handles every aspect of the build, from the initial design stages through to the final finishes.


We pride ourselves on using high-quality materials and ensuring exceptional craftsmanship to guarantee that your granny flat or studio not only looks great but is built to last. We also focus on optimising the space, making it both practical and comfortable, no matter the layout. Our commitment is to deliver a space that feels like home, and we work hard to stay on time and within your budget.


Ready to get started on your granny flat? Reach out today for a personalised consultation and a quote.

Get In Contact
Divider Icon

Custom Granny Flats for Extra Living Space

Granny flats offer a flexible, cost-effective way to add extra living space to your property. Whether you're accommodating family members, providing a private guest area or generating extra income, Justmill Carpentry & Building delivers custom-designed granny flats tailored to your specific needs. Our team ensures that each unit is built to the highest standards, focusing on comfort, functionality, and longevity.


We work with you to create layouts that maximise space, with a focus on practical features like smart storage solutions and energy-efficient designs. With over 25 years of experience in Cairns, we understand the unique building challenges of the region, ensuring that every granny flat is designed to withstand the local climate while maintaining aesthetic appeal.


From initial consultation to the final handover, we manage the entire project, handling council approvals, construction, and finishing details. A well-built granny flat not only provides extra accommodation but also increases your home's value and versatility.

Get a Quote

Our Previous Work

A Large Concrete Slab Is Sitting On Top Of A Lush Green Lawn In A Backyard — Justmill Carpentry & Building in Smithfield, QLD
A House With A Sliding Glass Door In The Backyard — Justmill Carpentry & Building in Smithfield, QLD
See All Projects
Divider Icon
Map icon

Location We Service

Share by: