If you’re sitting on a good-sized block, building two homes on the same land can open the door to more space, better use of land, and long-term financial return. Here’s how it works and why more South Australians are asking about it.

Dual Occupancy Explained

A dual occupancy build means having two separate dwellings on a single block. These can be attached (like a duplex) or detached (like a house with a second dwelling at the rear). Depending on your block size and council guidelines, this option can work for both new and existing properties.

It’s one of the most flexible approaches available—whether you want to live in one and rent the other, keep family close, or double your income potential.

Who Is It Good For?

• Property Investors
  More rental income from the same piece of land.
• Families Looking to Share
  Live next to parents, adult children, or extended family while keeping your space.
• Downsizers
  Build a smaller place for yourself and lease or sell the second dwelling.
• Developers
  Take full advantage of zoning rules and site value in growing suburbs.

What You Need to Consider First

Before starting, it’s worth checking a few key points:

• Does your land meet local council requirements for dual dwellings?
• Is there enough street frontage or access for both homes?
• Are services (water, power, etc.) easy to connect or separate?

The good news? We’ll help you with all of this upfront. No guesswork.

Design Options That Work for You

You don’t have to build two identical homes. Some clients choose to live in one and build a smaller investment unit behind it. Others prefer mirrored duplexes to keep things even and simple for resale or rental.

We’ll help you make the most of your block, whether that means two storeys, shared driveways, or separate titles.

Getting the Numbers Right

Dual occupancy isn’t just about design—it’s also about value. We work closely with clients to make sure the build cost makes sense when compared to the return. With growing demand for rental homes across Adelaide, this can be a smart long-term move.

How Wemark Build Can Help

We’ve worked on multiple dual occupancy projects across South Australia, and we understand what’s possible—not just what’s popular. From early design to handover, we keep the process straight and predictable.

Curious about what your block can do?
Get in touch and we’ll walk through your options—no pressure, just facts.