GOLD COAST GRANNY FLAT BUILDER

Every block is different, so the best way to find out is to book a quick call with our team and provide your property address. From there, we can complete preliminary property checks and guide you through key considerations such as feasibility, likely siting, overlays and approval requirements. 

Block size is only one part of determining suitability. Access, slope, services, overlays, easements, vegetation and the proposed location of the Granny Flat all need to be considered. 

We’ve worked with many challenging sites and always aim to find a practical solution, even for trickier blocks. The best first step is to book a call with our team so we can review your property details, discuss your local council requirements and guide you through what may be possible for your block. 

For a certifier project contract to keys is around 7-8 months, but allow another 2 months for a completely custom design.  

Anything requiring council approval can add another 3 –6 months.  

Both are great options, and the right choice depends on your budget, property, timeline and what you want to achieve with the space. 

A pre-designed Granny Flat is based on an existing design that has already been planned and estimated, which can make the process more streamlined and cost-effective. It can be a great option if you want a practical layout, clear starting point and a simpler decision-making process. 

A custom Granny Flat is designed around your property, lifestyle and goals. This gives you more flexibility with the layout, finishes, orientation, storage, accessibility, entertaining areas and how the home connects with the main residence or outdoor space. 

Custom builds are generally more expensive than pre-designed options because they require more design time, planning and site-specific consideration. However, they can also deliver a better outcome if you have a challenging block, specific design preferences, long-term family needs or want to maximise rental appeal and return. 

At BCC Homes, we specialise in custom Granny Flats, so we work closely with you to understand what matters most and create a home that is practical, considered and tailored to your site. 

Yes! In many South East Queensland council areas, Granny Flats can often be rented to someone outside of your immediate family. However, the rules can vary depending on the council, zoning, overlays and the specific details of your property. 

As a general guide: 

City of Gold Coast: Secondary dwellings may be occupied by anyone, provided the property meets the relevant zoning and approval requirements. 

Logan City Council: Logan generally allows secondary dwellings to be rented to third-party tenants, making Granny Flats a popular option for rental income. 

Brisbane City Council: Brisbane has relaxed its rules, meaning secondary dwellings can generally be rented to tenants who are not immediate family members. 

Scenic Rim Regional Council: Requirements can vary significantly, particularly in rural zones. Some properties may require additional approval, such as a Material Change of Use, if the Granny Flat is being rented to someone outside the family. 

Because every property is different, we recommend speaking with our team so we can complete preliminary checks and help you understand what may apply to your block and local council area. 

It can be. A Granny Flat may offer strong long-term value through rental income, increased property flexibility and future lifestyle options, but every property, budget and financial goal is different. 

We’ve built Granny Flats that have generated yields of over 17%, however results depend on factors such as location, build cost, rental demand, council requirements, site conditions and how the property is used. 

If investment return is your main goal, we recommend speaking with our team so we can help you understand what may be achievable for your property, explore design and cost options, and look at how to maximise your potential return on investment.

A Granny Flat Agreement is generally a formal arrangement between family members — often where a parent contributes money toward building or living in a granny flat on an adult child’s property. 

Our Granny Flats are built on site, which is what you can expect from a custom builder. This allows us to respond properly to your block, site conditions, design requirements and personal preferences, rather than working within the limitations of a prefabricated or standardised model. 

Building on site also gives greater flexibility with layout, finishes, orientation and how the Granny Flat connects with the existing property, helping us create a home that feels considered, practical and tailored to your site.

An on-site build and a modular Granny Flat are simply two different construction approaches, and the right choice will depend on your priorities, budget, site and design preferences. 

A modular Granny Flat is generally built off site in sections and then transported to the property for installation. This can suit some clients who are looking for a more standardised design or a different construction process. 

An on-site build is constructed directly on your property, which allows for greater flexibility and site-specific design. This can be particularly beneficial if your block has slope, access considerations, overlays or if you want a layout and finish that is tailored to your lifestyle, family needs or investment goals. 

At BCC Homes, we specialise in traditional on-site construction because it allows us to respond properly to your property, customise the design, manage finishes closely and create a Granny Flat that feels considered, permanent and connected to the existing. 

After you enquire, our team will guide you through each stage of the process, from the first conversation through to handing over the keys. 

You can view our entire process here: https://www.bcchomes.au/our-process 

There is no cost for the site visit. 

The site visit allows our team to review your property in person and confirm important details that can affect the design, construction method and overall project cost. This may include checking access, slope, services, drainage considerations, easements, likely siting, existing structures and any site-specific constraints. 

This step is important because it helps us move beyond a general price guide and prepare a more accurate fixed-price quote based on your actual property. Our goal is to identify key requirements early, provide clear advice and give you confidence before moving forward with a contract. 

Construction typically takes around 14–18 weeks once approvals are in place and the build is ready to begin. 

This timeframe can vary depending on the design, site conditions, weather, material availability, trade scheduling and any unexpected site requirements. Our team will provide a more specific construction timeline before work starts and keep you updated throughout the build. 

Yes! Tyler will be your main client liaison throughout the build, so you’ll have a consistent point of contact to help guide you through the process. 

Once approval is received, we’ll also set up a WhatsApp group with the key members of our team involved in your construction, including our Director and CEO. This helps keep communication clear, timely and transparent, so everyone stays across the progress of your Granny Flat. 

BCC Homes is not a volume builder. We’re a small, dedicated team specialising exclusively in Granny Flats, which means every project receives a high level of care, attention and accountability. 

You’ll work closely with our Director, CEO and close-knit team throughout the process, with clear communication and transparent pricing from the start. We take the time to understand your property, your goals and the way you want the space to function, so we can deliver a Granny Flat that is considered, practical and built to a standard we’d expect in our own homes. 

BCC Homes builds Granny Flats across selected South East Queensland council areas, including: 

City of Gold Coast 

Logan City Council 

Scenic Rim Regional Council 

We also build in select areas of Redland City Council and South Brisbane, depending on the property location, site conditions and council requirements. 

If you’re unsure whether we service your area, simply get in touch with our team and provide your property address. We can complete a preliminary check and confirm whether your location is within our build area.