What is a Duplex? 

Land is becoming increasingly expensive, which is why property owners look for ways to get the most out of what they have. At Welsh Building Company, we encourage clients to consider duplex buildings as an option. You don’t just increase the value of your property but also gain an additional source of income.

A duplex is a property that has two connected homes on one plot of land. In most cases, these homes share a wall and have the same exterior design. This property can be a single-family home or a multi-family establishment based on the homeowner’s preference.

Many clients choose to reside in one section while leasing the other to someone, which can help them earn a side income.

Factors to Consider 

Building a duplex isn’t like constructing a regular single-family home, which is why you must hire duplex specialists. We understand this process well and will conduct a thorough examination of your property to determine whether it is the right choice for duplex development. Here’s a look at some of the factors we consider:

  • A lot’s size and orientation
  • Size of the duplex and number of rooms required
  • Parking requirements
  • Impact on neighbouring properties
  • Budget
  • Lot zoning
  • Inclusions
  • Quality

We also consider factors like your lifestyle, landfall, slope, etc.before offering our recommendations.

Application Plans and Reports

 Once we have conducted a thorough survey and consider the land viable, our team will discuss your project in detail. The planning stage involves looking at different design options, checking preliminary sketches, adding customizations, etc. We aim to ensure that clients are satisfied with all aspects of our design before moving forward with a project.

Our team will prepare the applications for permits and licenses after your approval. This pack includes a full set of architectural plans and reports like site analysis, waste management, environment effects, BASIX, ABSA assessment report, etc. Our construction work begins after we get permission.

If you’re looking for reliable duplex specialists, call Welsh Building Company directly on 1300 356 693 or use our contact us form.

Your Dream Build Might Be Less Expensive Than You Might Think

Welsh Building Company offer a wide variety of building services to cater for almost any budget, and your dream build might be less expensive than you might think. We offer a complete service from start to finish: from the initial consultation, through to the construction phase, then handing you the keys upon completion.

Managing Director Andrew Welsh supervises every stage of your development, making sure everything runs as smoothly as possible. We can build on almost any terrain as well. For example, many of our homes have been built on steep slopes.

We Offer A Wide Range
Of Services For Any Budget

Project to Client’s Budget

We can work out and then work within your budget

House and Land Packages

We can acquire land and build so you can just move in

House on Your Land

if you already own a piece of land, we can build a new dwelling on it

Design and Build

if you already own a piece of land, we can build a new dwelling on it

Commercial Construction

We can provide commercial fit-outs for a wide range of commercial properties such as factories


We can fully renovate your existing property to the highest standard possible

Build in NSW & Queensland

We are fully licensed to build in these states.

Is Your House Looking Weathered? Time for a Revamp!

Welsh Building provides a range of design options to revamp your home. So contact one of our building consultants to discuss your home renovation options.