Duplex Designer and Builder- Sydney










Thinking of building a Duplex in Sydney?

Duplex homes, where 2 homes are built on the one lot of land, are becoming increasingly popular in Sydney. They often sit side-by-side to each other, and whilst usually sharing a common wall, they can also be designed as detached dwellings, depending on the size of your land.

At F.J.C Design & Construction, we have extensive experience in the design and building of modern duplexes all over Sydney. Regardless of the configuration of your land, we will ensure a custom design to maximise space without compromising on style. We have previously created unique solutions to challenging sites (narrow or steep blocks) and maximised the unique opportunities that corner blocks provide.

Modern Duplex Design

We offer a custom design service  that means our modern duplex and townhouse designs not only look great, but will ensure you maximise the value of investment through smart, open-plan design that utilises all available space. We will take care of the DA and CC for council submission, at an affordable price. Contact us for a site inspection.

Already have DA Approved plans?

No problem. We offer duplex building services  across Sydney. We ensure your duplex or townhouses are built to the highest standard, on budget and schedule. We are not only designers but part of the Master Builders Association (MBA NSW).  Contact us to arrange an obligation free quote.

End-to-End solutions

F.J.C Design & Construction can offer you an end-to-end design and build solution for your duplex.

Why build a duplex in Sydney:

  • Turn your old home into 2 brand new homes so you can live in one and rent out the other.
  • Alternatively, sell the second dwelling and minimise your mortgage!
  • Maximise the use of space on your block of land
  • A stepping stone into owning an investment property
  • Building 2 dwellings simultaneously represents a significant cost saving

Things to consider before building a duplex in Sydney:

  • The size of your land isn’t the only determinant to building a duplex on your site. You also need to ensure the zoning is appropriate, the width of the land meets minimum requirements and there won’t be drainage or stormwater issues. Your local council will have a list of guidelines available to you to ensure your block of land complies.
  • Is it important to ensure you have utilised an experienced designer to ensure not only the design is modern and stylish, but that the approvals process will be seamless.
We have found Frank to be a diligent and knowledgeable builder who goes out of his way to make sure things are done correctly. He has excellent experience in both building and design and we would highly recommend him. Thankyou!
Arthur and Maria Karagiannis, Sydney
F.J.C Design & Construction managed the whole process from DA application though to building. The combination of building and architecture services made matters simple and allowed an innovative solution to small tight spaces in a terrace to be found.
Karen, Newtown
We have used Frank’s design services for a number of our property development projects and he comes with our highest recommendation. The fact that Frank is also a builder ensures that his designs are practical and cost-effective to build. You won’t go wrong!
John, Bexley
Our decision to engage Frank from F.J.C Design & Construction for our home renovation project turned out to be one of our best…. The entire process from design, planning and construction of the site was seamless with Frank guiding us through every step with options to meet our taste and brief. I would never hesitate in recommending Frank for any project.
Anthony, Rydalmere
We engaged F.J.C Design and Construction as the builders for a new duplex in Sydney. I work in the construction industry and found Frank and co to be extremely knowledgeable, honest and efficient. Our project looked great and you can appreciate the high quality finishes. F.J.C Design and Construction come highly recommended.
Sam, Merrylands

We have extensive experience in duplex design and building, having carried out multiple projects across Sydney including the Inner West, Bankstown (including Condell Park, Panania, Revesby, Padstow, Chester Hill), Merrylands and beyond.