Duplex Floorplans & Designs
Unlock the potential of a smart investment and modern lifestyle with our duplex home designs. Perfect for investors, growing families, or multi-generational households, a duplex offers two separate, self-contained homes under one roof delivering flexibility, privacy, and impressive value.
Whether you’re looking to maximise rental returns, accommodate extended family, or create a dual-living setup for yourself and your loved ones, our duplex designs provide the perfect solution. With options for single-storey or double-storey duplexes, you can enjoy the comfort of contemporary living without compromise.
At Better Built Homes, our duplex home designs combine functionality with thoughtful architectural detail. Each layout is crafted to ensure both homes feel spacious, private, and tailored to your needs with open-plan living areas, modern kitchens, and separate entrances for true independence.
With over 12 years of experience building homes across Greater Sydney, we understand the unique considerations involved in duplex construction. Whether you’re planning an attached or detached duplex, we’ll guide you through every step from council requirements and site feasibility to design customisation and final handover.
Every duplex design comes with flexible, customisable floor plans to suit your block and your lifestyle. We offer transparent pricing and provide weekly build updates so you always know where your project stands. Our local team understands the ins and outs of duplex approvals and will help you navigate the process with confidence. And above all, our homes are built with the quality craftsmanship and attention to detail that has earned us multiple industry awards.
Walk through our immersive 3D virtual tours, explore detailed duplex floor plans, and hear from families who have trusted us to build their ideal dual-living homes. From first consultation to final key handover, our friendly consultants are here to make your duplex journey seamless and rewarding.
Every Better Built Homes design is fully customisable because we believe your home should be as unique as you are. Say goodbye to cookie-cutter designs and create a duplex that works for you.
Ready to get started? Browse our duplex home designs or book a consultation with our team today. Let’s build your dream duplex, together.
Still have more questions?
Building a duplex can be a more cost-effective way to build two homes on one block, but the overall cost will depend on your individual property, design and building requirements.
When comparing the cost of a duplex with building two separate homes, factors such as the size and design of each dwelling, block size and conditions, site access, services, construction requirements and finishes all need to be considered. When you speak to our new home consultants, we’ll look at your individual block and plans to help you understand the costs involved and determine the best approach for your project.
The cost of subdividing can vary depending on your property, location and the requirements of your local council. Costs may include planning and surveying fees, development and subdivision applications, infrastructure contributions, service connections and other associated costs.
Because every site is different, our team can help you understand the potential requirements for your block and what may need to be considered as part of your project.
Not necessarily. When building a duplex, you have two options for how the property can be titled: Strata title or Torrens title.
With a Strata title, both dwellings remain on the same parcel of land, with each home separately owned under the strata scheme. This means you can build a duplex without subdividing the land into separate lots, provided your block meets the relevant planning and development requirements.
With a Torrens title, the land is subdivided so that each dwelling has its own individual title. This may be worth considering if you're looking to sell one dwelling, retain the other, rent the homes separately or future-proof your investment.
Whether your block can be subdivided will depend on factors such as your zoning, lot size, frontage and local planning requirements. We can help you understand your options and consider your future plans from the beginning of the design process.
The approvals you'll need will depend on your block, location, zoning and the type of duplex you're looking to build. This can include planning or development approval, construction approvals and potentially subdivision approval if you want the dwellings separately titled.
And this is where we can come in. We’ll explain what’s required for your individual project and guide you through each stage, so you know what to expect before construction begins.
Every duplex project is different, but as a general guide, it can take between 12–18 months from planning through to handover, with construction itself typically taking around 6–12 months depending on your site and design.
Once we understand your block and what you're looking to build, we'll be able to give you a clearer idea of the expected timeframe for your project.
The ideal block for a duplex will need to be around 15m wide to accommodate the build. However, blocks as narrow as 12m wide may also be suitable in some circumstances, depending on your low-rise housing diversity, local council requirements, zoning and the design of the duplex.
If you’re considering building a duplex, our team can assess your block and help determine whether your site is suitable.
Absolutely! A duplex doesn't have to mean two identical homes. We can customise the layout, living spaces, bedrooms, bathrooms, garages and more to suit your needs and block requirements.
The secret to a good duplex design is making the most of the available land while building a functional home for each dwelling and this is where Better Built Homes excels.
Yes. In fact, we regularly work with blocks that have different site challenges. The key is designing the home around the block rather than trying to make the block fit the design. We'll consider factors such as the slope, levels, access, excavation, retaining and drainage when looking at what's possible for your site.
A traditional duplex will generally have the two homes connected by a common wall, but that doesn't mean the design has to feel like two homes joined together.
There are different ways to approach the layout, including positioning garages between the dwellings or carefully designing the shared wall to provide privacy and separation.
We'll work with you to make the most of your block while creating two homes that feel functional and comfortable.
Of course! We work with plenty of customers who come to us with their own duplex plans or a design already in mind.
As a builder that offers design flexibility and customisation, we can work with your plans and discuss how they can be adapted to suit your block, site conditions, budget and building requirements.
It could! And the best way to find out is to have your block assessed.
With Better Built Homes, we’ll look at things like the block width and size, zoning, slope, access, orientation, services and other site considerations to determine what may be possible.
If you're not sure whether your block is suitable for a duplex, reach out to the Better Built Homes team today