Building house cost

Building a House in Perth in 2023 – How Much Will it Cost?

January 12, 2023

The cost of building a house in Perth varies depending on several factors, including the size of the house, the location, the materials used, and the complexity of the design. Depending on those factors, you can expect to pay anywhere between $620 – $3900 per square metre.

However, it’s important to note that this is just an estimate, and the actual cost can be higher or lower depending on individual circumstances. Other factors that can impact the price include the cost of land, the cost of labour, and any additional costs associated with permits, inspections, and other regulatory requirements. 

Cost breakdown

It’s worth understanding where your money is going. Essentially the cost breakdown looks like this:

  • Materials: 40-45% 
  • Labour: 35-40% 
  • Taxes, charges, insurance, and overheads: the rest

Potential Hidden Costs

  • Land prices (unless you decide to purchase a house and land package)
  • Landscaping and fencing (often included in turn-key options)
  • Incidental smaller items (clothesline, letterboxes, etc.) 
  • Extras like swimming pools, gazebos, etc.

Size – it matters

It’s no surprise that bigger homes typically cost more. Building a three-storey luxury mansion will be more expensive than using budget materials in a suburban 3-bedroom, single-storey home. The first step is to sit down and create a budget for your build. While lounging by your 25-metre lap pool sounds lovely in theory, building costs money – and you must be able to afford it. Speak to a builder who can get the most out of smaller spaces.


Again, the higher the quality, the higher the cost. You may need to compromise to keep home-building budgets in check. Create a list of must-haves (e.g., stone benchtop, luxury ensuite) and compromise on non-essentials (e.g., lower quality carpet in the kids’ rooms). Discuss this with your custom home builder, finding one that can work within your budget.


Depending on which new home construction company you choose to build your house, even the design process can be expensive. You can reduce costs in this area by selecting an experienced and professional builder who understands how to create the perfect design to meet your needs and budget.

Location and site considerations

Is your block on a slope? Are there established trees that you must consider? The conditions of your site can significantly affect the cost of your build. Soil type, trees, or rocks to work around or remove, the water table, and block steepness can all blow out your budget before building commences.

Evolve Builders are here to help

Are you thinking about building and want to talk to a professional about your options? The experienced team at Evolve Builders would love to sit with you and have an open and honest discussion about home building in Perth. Evolve Builders’ experienced draftspersons, and designers will help create your perfect custom new home construction in Perth. 

Our team can help you identify and refine your requirements, ensuring you get your desired home. 

Contact us today.

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