fbpx Skip to main content

If you’re looking to add an extension to your home, it’s important to get an idea of the cost. As more Australians look to expand their living spaces, understanding the home extension cost and ways to save money can really help. Whether you’re planning to expand your kitchen or add an extra bedroom, it’s important to know what to expect financially before you get started.

In this blog article, we will break down the costs associated with home extensions and provide you with insights on how to save money without compromising on quality.

Types of Home Extensions and Their Costs

One of the major factors that will determine your home extension cost is the extent of the construction you’re planning. Size and building materials impact time and all contribute to overall cost.

Here is an overview of common extension types and their average costs per square metre:

  1. Single-storey extensions: $1,500 to $2,500 per m²
  2. Double-storey extensions: $1,700 to $2,700 per m²
  3. Rear extensions: $1,600 to $2,600 per m²
  4. Side-return extensions: $1,800 to $2,800 per m²
  5. Wrap-around extensions: $2,000 to $3,000 per m²

Keep in mind that these figures are estimates and can vary based on several factors. A simple single-storey extension in a regional area might fall on the lower end of the spectrum, while a complex double-storey extension in Sydney could exceed these ranges.

Factors Affecting Home Extension Cost

Depending on where you live and the market condition at the time of your project, there are several important factors that can influence the final cost of your home extension:

  1. Location: Building in Sydney or other major cities typically costs more than in regional areas due to higher labour and material costs.
  2. Materials used: High-end finishes will increase your budget, while more modest materials can help keep costs down. However, it is important to keep in mind any maintenance costs that will be required in the future.
  3. Complexity of the design: Unique architectural features or complex structural requirements will add to the overall cost. Designs that are more complex can require professional designers to get involved in the process.
  4. Ground conditions: Poor soil quality or sloping land can require additional foundation work, such as levelling and filling, which can increase expenses.
  5. Access to the site: A site with accessibility challenges could require specialised equipment or alternative construction methods, potentially raising costs.

Additional Costs to Consider

When it comes to budgeting for extension, it is common for homeowners to overlook some cost. When creating a budget for your home extension, consider the following:

  1. Planning permission and building regulations: Fees for council approvals and inspections.
  2. Architectural and design fees: Typically 3-7% of the total project cost.
  3. Structural engineer fees: Essential to ensure your extension is safe and compliant.
  4. Party wall agreements: Can be necessary if your extension affects shared walls with neighbours.
  5. Insurance: Additional coverage may be required during construction.

Breaking Down the Costs: A Typical Extension Project

If you want to put all the numbers in one place, here is a sample breakdown for a 30 m² single-storey extension:

  • Construction costs: $60,000 – $75,000
  • Architectural design fees: $3,000 – $5,250
  • Structural engineer: $1,500 – $2,500
  • Council fees: $1,000 – $2,000
  • Additional costs (e.g. party wall agreements, insurance): $2,000 – $3,000

Total estimated cost: $67,500 – $87,750

How to Reduce Extension Costs

If you’re looking to bring down the cost of your extension, here are some options you might find helpful:

  1. Diversify your DIY options: If you tackle simpler tasks like painting or landscaping by yourself it can reduce labouring costs.
  2. Choose cost-effective materials: You might want to choose finishes in a lower price range that can offer durability without breaking the bank.
  3. Simplify the design: A more straightforward design can significantly reduce labour and material costs compared with a more complex project.
  4. Adjust your project’s timing: Consider building during off-peak seasons when contractors might offer better rates.

Financing Your Home Extension

There are different methods to fund your project, and some can even save you money in the long run.

  1. Savings: The most cost-effective method if you already have the funds available, in this way you avoid paying interest down the line.
  2. Remortgaging: You can potentially get lower interest rates when remortgaging, but bear in mind it may also extend the term of your loan.
  3. Home improvement loans: Check with your bank for specific loan programs for renovation projects or first-time home buyers.
  4. Government schemes: Find out if there are any grants or incentives for home improvements available. If you are working on a sustainable renovation, there may be government programs that offer financial support for your project.

In Summary

Understanding the various costs involved in a home extension and planning carefully from the start can make a significant difference to your overall project. However, juggling these considerations alongside your daily responsibilities can be overwhelming. This is why professional guidance can be so important. Many homeowners have chosen to engage a construction consultant who specialises in home extension projects. They can help to streamline the process and potentially save you money in the long run by avoiding costly materials and ensuring efficient project management.

We hope you found this breakdown of home extension cost helpful. At Construction Concierge, we’re dedicated to making your renovation journey as smooth and cost-effective as possible. Our complimentary consultation service connects you with Sydney’s top building professionals, from architects to contractors. By leveraging our network of industry experts, we can help you to navigate the complexities of home extensions without any additional fees.

With three decades of combined industry experience and a network of highly skilled professionals, we’ve transformed countless stressful home construction projects into streamlined and stress-free experiences for our clients.

Are you ready to take the first step towards your dream home extension with confidence and expert guidance?

Contact us today to save valuable time and energy. Let’s bring your home extension project to life in the most cost-effective way possible!

Download E-Book
Enjoying our Free Resources?

Complete the below form to receive our entire E-book for free!