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Dreaming of a premium custom Duplex Unique to your style?

Explore the Benefits of Our Dundas Dual Occupancy Homes in Maximising Space and Boosting ROI

Generally, a duplex dwelling comprises two homes sharing a common wall but holding separate land titles. Going beyond a creative spatial arrangement, constructing a duplex in SUBURB enhances your property's equity without doubling the investment cost.

The outcome?

Robust returns with relatively lower risk.

Maybe you're considering building an investment property to leverage Western Sydney's growing reputation as a highly liveable area. You might be contemplating dual income by renting one or both of your duplex homes. Alternatively, you could be looking to supplement your mortgage by renting out one side of your newly constructed duplex.

As your partner from the design phase to handing over the keys, we’re committed to helping you enjoy the best possible investment return. 

  • High-yield
  • High-growth
  • Positive cash flow
  • Reduced building costs

Leveraging over two decades of experience, the Kobo Projects team strives to optimise your property's potential through meticulous planning and expert craftsmanship. Our goal is to construct a dual-occupancy home in SUBURB that delivers the highest possible return on investment.

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Exploring the Opportunity for a Custom Duplex in Dundas but Uncertain Where to Commence?

Zoning laws. Confusing market value. Complicated subdivision rules. Unclear construction costs.

If you’re excited about a duplex’s versatility and ROI but feeling overwhelmed by the duplex building process, we don’t blame you (and you’re not alone).

It’s easy to get swept up in the excitement of a duplex construction when thinking about extra rental income or selling down the track. But, if you’re like the ambitious clients we work with throughout Western Sydney’s suburbs, you might have questions about the challenges of building a dual-living home.

If you’re looking to speak with local dual occupancy builders who understand your vision, we can help. At Kobo Projects, our team prides itself on delivering expert-level work every step of the way.

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Throughout the construction process, communication was seamless. Kobo projects kept us informed at every stage, providing updates and addressing any questions or concerns promptly. Their transparency and reliability made the entire journey stress-free.


Working with Koboprojects was a fantastic experience. The attention to detail and commitment to quality in our new build exceeded our expectations. The communication throughout the process was excellent, making the entire journey smooth and stress-free. We now have our dream home, thanks to Koboprojects.


The level of professionalism and attention to detail displayed by the entire team was exceptional. They took the time to understand our vision and requirements, and their expertise and creativity truly brought our dream project to life.


We are thrilled with the craftsmanship and professionalism displayed by Koboprojects during the construction of our new home. Joe’s expertise, dedication, and adherence to timelines made the entire project a pleasure. Our sincere thanks for turning our vision into reality!"


It was a pleasure working with Kobo Projects, and I have no hesitation in recommending their services to anyone in need of a construction partner they can trust. Thank you for making our vision a reality, and we look forward to collaborating with you again in the future.


We couldn't be happier with the outcome of our new build, all thanks to koboprojects. The meticulous attention to detail and the ability to bring our ideas to life were remarkable. If you're looking for a reliable and skilled builder, koboprojects is the one to trust.


Dundas's Dual Occupancy Design and Construction Specialists

‘Multi-residential development’ might sound like a buzzword you’d find in a builder’s brochure. It just means you get your home, your way.

At Kobo Projects, we understand that every SUBURB family and potential homeowner is unique. Our dual occupancy homes are fully tailored to your lifestyle or investment goals.

We know you’ve got better things to do than jump through council hoops. That’s why we also take care of everything - from feasibility and approvals, subdivision and permits, to design and construction - all with project management support from start to finish.

We’ve built modern duplex designs for narrow blocks of land, larger properties, and two and even three-story homes. Our layout is tailored to your needs whether finding the right window placement to bring in natural light or enhancing your privacy.

 Leverage our extensive experience and track record of excellence to maximise the use of your land, whatever that looks like to you.

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20 yrs experience
60+ projects

What Makes a Duplex Such a Popular Construction Choice?

Maximise equity in your property
Perfect for high-demand suburbs
No strata fees to worry about
Potential for rental income
Keep family members close
Prefect for Airbnb rental listings
Starting point for first time investors
Higher potential rental yield
Why choose us as your builders
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Why Build a Duplex with Us?

Constructing a pair of residences known as duplexes can potentially amplify the value of your property compared to a solitary dwelling. However, this outcome relies significantly on your collaboration with expert duplex builders.

At Kobo Projects, we understand the critical nature of selecting the right construction team for your investment venture. Leveraging our extensive experience in multi-residential construction spanning 20 years, we possess the capability to conceptualise, develop, and build duplex homes tailored to your special lifestyle.

Duplexes represent a tried-and-true method for injecting immediate value into your property, circumventing the need to wait for years to witness appreciable returns. Given the escalating demand for housing in SUBURB, the construction of duplexes presents a compelling proposition, particularly in close proximity to public transportation, educational institutions, and other essential amenities.

Whether your objective is to generate a dual income and immediate cash flow while utilising the space of a single plot of land or to extract equity from your newly-built duplex to bolster additional property investments, the potential is considerable.

Regardless of your overarching property aspirations, we stand ready to offer our unwavering support. We meticulously attend to every minutia, transforming your creative input into tangible reality at each stage of the project. Our seasoned team is on hand to address any queries you may have, ensuring your confidence throughout the entire process, culminating in the realisation of a multi-dwelling residence that resonates with your preferences.

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Find Out What Makes Us Stand Out as the Leading Duplex Builders in Dundas

We Bring 20+ years of Experience

With over two decades working in Western Sydney, our extensive experience in project management, including budgets and timelines, helps deliver premium results without cutting costs or corners.

We’re Actually Custom Builders  

Plenty of “custom duplex home builders” talk a big game then ask you to choose from a brochure. With our industry-leading architectural designers, you can customise every aspect of your design for a one-of-a-kind duplex.

We Keep Costs (and Stress) Down

Our proven process helps keep your duplex building costs down while effectively delivering two homes for the price of one. From project inception to completion, our exceptional project management skills ensure we stay on time and budget.

We Deliver an Unmatched Service

We’re big enough to provide exceptional work, but small enough to care and give you the attention you need. Deliberately staying small means one-on-one service which allows you to  craft your vision into reality.

IS a duplex right for you?
Building a duplex
Building a Home
Cheaper Building Costs*
Dual Living Capability
Passive Income Potential
Build Equity Fast
Flexible Living Options
Enquire Now
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Step 1

Reach out about your vision

Please don't hesitate to contact us via our "Contact Us" section, or if you prefer a friendly conversation, don't hesitate to give us a call. We genuinely enjoy getting to know you and learning about your ideas and vision. If it appears that we're a good fit, we'll schedule an in-person meeting at your location.

Step 2

Face to face meeting

During our face-to-face meeting, we'll discuss your plans, whether they're still in your thoughts or already documented on paper, and begin conversations about timelines, necessary documentation, and how everything will come together. Do some homework and come prepared with inspiration ideas, photos, preferred styles, required functionalities, or any other elements that will aid our design team in crafting the ideal design for you.

Step 3

Design & Quote

We'll then offer a design proposal and a cost estimate (not the final quote). If you wish to proceed, we'll send a preliminary agreement, beginning the design process. Following approval for floor plans & elevations, we'll provide a final cost estimate. We'll refine the quote until it's ready for the construction phase, bearing in mind possible adjustments based on consultant documents like geotechnical reports, structural designs, & BASIX requirements.

Step 4


Upon acceptance of the quote, we'll proceed with construction plans, BASIX certificate, structural design, and more for CDC or DA submission. Our building designer will handle plan submission and obtain the necessary construction certificate to initiate the building process!

Step 5

Contracts Signed & Commencement

Once all documentation is in hand, we'll complete the quote, sign contracts, and begin the project! We'll mutually agree on a start date, and once construction begins, we'll schedule regular site visits to ensure your satisfaction, provide updates, and accommodate any inclusion changes if desired.

Step 6

Construction Begins

This is where the magic happens! Our expert team begins construction of your stunning new residential or commercial project on the agreed upon date. We make sure to keep you in the loop the entire build and aim to build with minimal disruptions. Our expert team gets to work to make your dream happen.

Step 7

Handover & Aftercare

The long-awaited day has come! We'll hand over the keys to your new home and conduct a walkthrough to ensure everything is in order. Over time, it's natural to come across minor issues, and we'll always be available to address any concerns or defects you may encounter, ensuring you are happy with everything in your build.

Check Out Our Projects

Other Info


Dundas, a suburb in Sydney's northwest, is recognized for its family-friendly environment and leafy residential streets. With a mix of parks, schools, and local shops, Dundas offers a quiet and suburban lifestyle. The suburb's accessibility to transport links and its sense of community make it an ideal choice for those seeking a peaceful residential setting.

Things to do in SUBURB

Whether you're visiting or local to SUBURB, here are some of the most popular things to do in the area:

Dundas Rocks and Lone Grave

Top Camp Site, Dundas Rocks

Bromus Dam Campground

Take Advantage of an Obligation-Free Chat with Dundas’s Custom Duplex Experts

At Kobo Projects, we understand your peace of mind is priceless - so we don’t charge you for it. Claim a zero-pressure consultation with a local duplex builder and discover why we’re trusted throughout Western Sydney.
Building? Get in touch with kobo today
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