Triplex Developments Perth

Triplex Development PerthLooking to unlock maximum potential from your site? Many developers in Perth look to build triplex development homes.

A triplex development is the most preferred development, especially on sites coded R30. It involves building three single or double storey homes around a shared common driveway on the one block.

The most common configurations are:

* Four-bedroom, two-bathroom 
* Three-bedroom, two-bathroom.

As a triplex development is designed to make the most of an existing site, especially smaller blocks, the opportunity to maximise your investment return is strong.

With many suburbs in Perth now allowing you to build three units on one site, now’s the perfect time to consider triplex developments.

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Triplex Townhouse development


Before embarking on a triplex development, the first step is to check the Residential Planning Codes (R-Codes) of the area, as they differ from council to council. Compounding the degree of difficulty is the potential design complexity to ensure your triplex development conforms to the necessary requirements.

As R-Code specialists, we can consult with local councils and planning consultants on your behalf to work out what’s possible on your site and whether it will be impacted by future zoning changes.

As a guide, you can usually undertake a triplex subdivision with R20 to R40 zoning:

Triplex Development Requirements


  Required Land Area










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How to Profit

Having more than one property on the same block will generally increase equity. A triplex development has great appeal for property investors thanks to their flexibility and the increased potential returns that can be realised by building three properties on the one block.

There are many ways to profit from a triplex development:

* Rent all three properties and triple the revenue you’ll receive from one block
* Rent two properties and sell the other to release cash flow for your next development    
* Sell two of the properties as individual residences (receiving double the sales potential from your block) while still retaining the third as an ongoing rental property
* Sell all three and pocket the returns.

As the most trusted triplex builders in Perth, Developments by Dale Alcock can guide you through the process of unlocking your property’s maximum potential.

What can I build?

Single storey units or double storey townhouses – or a mixture of both - can be built on a duplex / triplex / multi-unit site. Which ones you choose will depend on who you are building for.

Having all the accommodation on one level has strong appeal for empty nesters and retirees with an eye on the future. Families with small children also often prefer to live in a home without stairs. Single-storey units are associated with quicker build times, which is a big plus when you’re a developer and time is money.

Two storey townhouses are a great solution if you want to maximise space on your block. They are particularly popular in inner-suburb areas, or where developers are looking to get a greater yield or higher selling price. Not only do two-storey designs have a height advantage that can help you capture views, but they can also, in some suburbs, be perceived as ‘trendier’ or more desirable than single-storey homes. Families with older children often like the sense of separation that comes with having accommodation over two levels. The upper level can be ideal for a master suite or teenage retreat, while the home’s smaller footprint can potentially mean more backyard space.

View our unit and townhouse designs

Triplex Floor plan Examples

Explore a range of contemporary, cutting-edge design concepts for your triplex development with our specialist residential development team in Perth.

DxDA Tips & Resources

Why Developments by Dale Alcock?

A triplex can present a number of design and development challenges. Deep consideration needs to be given to setbacks, streetscape, car parking and vehicle access, as well as provisions for sewer connection, water, power, gas, data and phone lines.

Developments by Dale Alcock is the triplex builder Perth trusts. We can take care of absolutely everything from start to finish, including preliminary designs, finished floor levels, plot ratios, site coverage, retaining walls and setbacks.

It all adds up to a triplex design that minimises triplex costs and maximises profit.

Want to find out how a triplex development would work on your block? Contact us and we’ll explain your options here.

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30 Years experience

30 years' experience
As R-Code experts, we’ll show you exactly what’s possible on your block, so you won’t get caught out later.

On time. On budget. Guaranteed.

On Time. On Budget. Guaranteed.
Enjoy complete peace of mind knowing we promise to make your experience a smooth and enjoyable one.

Complete design to construct service

Complete design to construct service
Our dedicated architectural design team only works on development projects, allowing us to create both custom designs or off-the-shelf plans.

You're in safe hands

In safe hands
We’re all about maximising your profit, minimising cost and reducing risk.

Got a question about triplex developments?

Got a question about the best way to go about triplex developments in Perth? Want to know more about what we do as triplex builders? Please don’t hesitate to get in touch for an informal discussion about your plans and how we can help.

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