Building a double garage is a practical and value-adding investment for many Australian properties. The cost of constructing a double garage can range significantly from $20,000 to $50,000, influenced by a variety of factors such as materials, labour, and site conditions.
Under the general principles of construction cost assessments, the primary elements contributing to the cost include materials (such as bricks, concrete, and roofing), labour, permits, and any necessary site preparation. The choice between using basic materials versus premium finishes can substantially alter the final cost. For example, opting for a Colorbond roof instead of tiles or selecting a basic roller door compared to an automatic one will impact your budget.
The most common misconception among investors is underestimating the 'hidden' costs such as site preparation, council fees, and potential need for drainage solutions, especially if the site is sloped. These can add unexpected expenses if not accounted for in the initial budget.
To see how this plays out, consider a practical example. Imagine constructing a double garage in a suburban area of Melbourne. The garage is planned to be 6m x 6m, with a basic brick veneer finish and a Colorbond roof. The estimated cost for materials alone might be around $15,000. Adding labour costs, council fees, and site preparation (such as a concrete slab and minor levelling), the total can easily reach $38,000. At a 37% marginal tax rate, if you claim any eligible depreciation on improvements, you could reduce your tax bill by $1,500 in the first year.
In our experience reviewing thousands of properties across Australia, we’ve noticed that investors often overlook the importance of obtaining multiple quotes. Prices can vary significantly between builders. Additionally, failing to consider future-proofing, such as wiring for electric vehicle chargers or considering insulation for potential future conversion, can lead to regret down the line.
The answer can differ depending on your situation. For example, building in a regional area might lower labour costs but increase material transport expenses. If your property is part of a strata scheme, you may face additional approvals or restrictions. Additionally, if you plan to rent out the property, the garage might increase rental yield, but ensure it meets local council regulations to avoid compliance issues.
Working with a Chartered Quantity Surveyor and an experienced local builder can provide a more accurate estimate tailored to your specific circumstances. They can help identify potential savings, avoid common pitfalls, and ensure compliance with local building codes.