Complying Duplex House Plans

Build your wealth faster with our quick to build duplex house plans – complete with CDC approval.

Also referred to as “Dual Occupancy”, a Duplex is a single residential building with two individual dwellings under the one roof, where each side is a completely separate home with its own entrance, amenities and yard. Duplexes are built as one structure, which minimises the build cost and maximises investment return.

BuildFast Property have a large range of Duplex Designs to suit most blocks of land and budgets, and our fast-tracked approval system gives you the green light to build the complying development Duplex of your dreams!

Duplexes are an incredibly versatile building option. They can be a small dwelling built on a budget, through to large prestige developments in exclusive suburbs. In most council areas BuildFast’s Duplexes can be larger than you might expect.

Using our unique CDC process and subject to site constraints, BuildFast can gain fast approval of your duplex (dual occupancy) in all council areas of NSW, without needing council approval – plus, you also won’ need to notify your neighbours until after approval is granted.

BuildFast can turn your property dreams into a profit-generating reality by helping you to create a Duplex to suit your needs.

Our Designs

Want to talk more about a design that will be right for you? Get in touch.

6 Reasons to Build Fast with BuildFast


Fastest approval process in NSW

Our exclusive CDC system bypasses the need for council approval, so developments are super fast, simple and stress-free.

Unrivalled experience

We out-experience every competitor in NSW when it comes to Complying Development Certificates (CDCs), which ultimately means you can start pocketing your property profits faster.

Fully customisable designs and floor plans

We’ve done the hard yards in pre-design to ensure our fully customisable dual occupancies, manor homes, duplexes and terraces are already compliant.

Land selection

We’ll help you find the right land that lends itself to fast approval, a quick but quality build, and tidy profits.

Expert builders

We’ll match you with a reliable builder from our network of high-quality, financially secure professionals, to execute your project – fast.

BuildFast Continuous Wealth Creation Strategy

We can show you how to add and even own a new unit to your portfolio every single year!