8 Things People Ignore while Calculating Building Cost


Usually, the cost of building a house will depend on the cost of the land and the type of house quality you wish to build — this aids in determining the kind of house building costs that need to be incurred. If you wish to get a direct and straightforward answer to this question: How much it costs to build a house, high-quality surveyors can provide you with a practical guide on the average construction costs in Australia. However, one thing that you need to remember is that the overall cost of the house will vary from site to site and state to state. 

It is equally important to understand that there are typically hidden costs that you need to be aware of while developing a building. Let’s look at them.


The full form of BASIX is the Building Sustainability Index. It is an initiative taken by the NSW government to provide sustainability, comfortableness, and cost-effectiveness of the living condition. If you are living in NSW, in case you’re lodging a development application (DA) to work more than $50,000, it is imperative to get a BASIX certificate. This is especially the case for new residential properties, including houses, apartments, townhouses, villas, and swimming pools of at least 40,000 liters, in conjunction with other forms of changes and additions to the existing homes.

Site Costs

Site costs mostly cover everything present in the site conditions. However, it also refers to the cost to set up the site appropriately for the planned work ahead. These costs will vary significantly based on what is being built and on the site itself. This includes preliminary tests & surveys, block leveling, general site safety, site planning, preparation, and clearing. 


If you are looking to complement a newly landscaped garden with the new building, chances are, you will not include its cost to build a house. Depending on the size of the block, landscaping could be as effortless as a patch of turf and some hedging. It might also be as broad as a structural landscape comprising of established trees and a manicured garden.


Certain architects do not include flooring in the pricing or final cost of building a house. It might look like a fundamental inclusion; however, in most cases, the options of flooring might differ for parts or rooms of the house. A prime example of that is a bedroom that can range in different sizes and types of flooring options that can be tile, timber, or carpet. Due to the variation in sizing, there can be variations in pricing, which can have an impact on the final cost of the building. And since it is difficult to give a fixed cost of flooring based on set design and plans, it is not possible to provide a fixed price. The best resort is to check over the contract for the inclusions and exclusions and plan accordingly. 

Reports, surveys & certification

There are times when additional reports, surveys, and certifications will be required while building a house in compliance with Australian Standards and the Building Codes of Australia (BCA) and other necessary local council registrations. 

After building a house, getting your local council’s sign-off and necessary certificates is vital. This can include land registration fees and waste services. If you’re considering a new block, see the options here about land for sale in Townsville.

Rectification costs

At times, the local council reserves the right to put the certification on hold especially when it does not meet specific compliances for building a house. This may make you incur more for luxury home builders gold coast. Most of the time, if it is due to the faulty work of the builder or due to their negligence. However, it was not due to the builder’s negligence; you need to pay for the rectification work as per the satisfactory norms of the councils’ requirement to get the required certificate. 

Loan Repayments and Bank Fees

Irrespective of whether you are taking an existing loan or taking a new loan altogether, it is essential to take note of the extra interest that you need to pay for the loans taken for building work. It all depends on the size of the loan. The interest rate can be substantial or negligible. You also need to pay in regular installments on top or in connection with the existing mortgages. It also becomes imperative to deal with related bank fees like lenders mortgage insurance related to the loans wherein it consists of 80% of the property’s value. Not to forget any extra bank fees that you need to pay.


Irrespective of whether you opt for a project builder or a custom building, the type of contract, changes in the plan and contract can make you incur additional expenses. Always remember any changes to finishes to completely revamping of designing the layout will affect the finished outcome and also on the requirements of the build. This can add up to the existing building costs. The best way to deal with this situation is by being 110% confident of the finished building and everything connected with it before starting the building process and starting the contract.

Concluding Thoughts

As you might have seen from this write-up, there are certain costs when it comes to the development of new buildings. It is, therefore, difficult to get a precise estimate for building a house. You can counter this situation by asking for multiple quotes for a specific house build. Unfortunately, every house and property is different, and there is no one size fits all answer. Therefore, it becomes imperative to dig deep and make general inquiries and take ample time to understand the things that you wish to accomplish.

This piece of content would help you to get a fair idea about the different costs that are not factored in the pricing. Hence, it becomes essential for you to know well in advance, the different things that are included, not included, and the cost of everything before you sign the dotting line for the commencement of the building work. By spending quality time on thorough research and due diligence on the cost of the house can save lots of energy, money, and effort. Also, make sure that you are creating a BASIX report from a well-known accessor to get the best results for your building. 




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