Do you know how bridging loans fund construction?

Bridging finance covers the gap between buying a new property and selling your existing one, but when construction is involved, the cash flow challenge becomes more complex. You need funds released progressively as the build advances, while also carrying the cost of your existing loan and the accumulating interest on the bridging facility. The decision you're making is whether bridging finance can genuinely support both the construction funding schedule and your monthly obligations without forcing an early sale.

How bridging loan repayment works during construction

You make no monthly repayments during the bridging period. Instead, the interest accrues and capitalises onto the loan balance each month, increasing the total debt progressively until you sell your existing property. This structure allows you to manage construction payments without finding additional cash each month, but it also means your loan balance grows steadily throughout the build. The lender calculates interest on the drawn balance, so as each construction stage is paid, the capitalised interest increases in line with the growing loan amount. Once you sell, the proceeds clear the original loan amount plus all accumulated interest in a single settlement.

Consider a scenario where construction requires six staged payments over eight months. At the first draw, interest begins capitalising on that portion. By the fourth draw, you're carrying capitalised interest on four separate amounts, each accruing from a different start date. The lender tracks each draw separately, compounding interest monthly, and the final balance can exceed the approved loan amount if the bridging period extends beyond what was originally estimated.

Timing construction draws against bridging loan approval limits

The bridging loan amount must cover both the land or deposit, the full construction cost, and the accumulated interest across the entire bridging period. If your builder requires five progress payments and you estimate a twelve month period before settlement on your existing home, the lender calculates the maximum loan based on the combined security value of both properties. The loan to value ratio applies across both assets, meaning if your existing home is worth more, you have greater borrowing capacity to fund both the construction schedule and the interest that accrues while the build progresses.

In Fairfield, where many families are upgrading from older homes on larger blocks, the equity in the existing property often provides sufficient security to support a construction bridging facility. The suburb's proximity to Fairfield Station and Fairfield Market Place makes it a practical location for families who want to remain in the area while building. However, the lender will only release each construction draw after receiving certification from a quantity surveyor or builder that the stage is complete, which can delay payments if there are disputes or weather-related holdups on site.

What happens if the sale is delayed during construction

If your existing property has not sold by the time construction completes, you face two immediate issues. The first is that the bridging loan term expires, typically after six or twelve months, and the lender may impose a higher interest rate or require an extension fee to continue the facility. The second is that you cannot settle on the new property until the bridging loan is repaid, which means your completed home sits empty while you remain in the existing property, waiting for a buyer.

Extending the bridging period adds cost. Some lenders allow a single extension of up to three months, but others require full refinance into a standard construction loan or home loan structure, which involves a new application, valuation, and settlement process. If you choose to refinance, you must demonstrate serviceability for the full loan amount, including the capitalised interest, which may exceed what was originally approved under the bridging loan assessment. The alternative is to accept a lower offer on your existing home to settle within the original bridging loan term, which can mean losing tens of thousands in sale price to avoid extension fees and higher interest.

Bridging finance costs when construction is involved

Bridging loan fees include an application fee, valuation costs for both properties, and in some cases, a line fee for each construction draw. The interest rate on a bridging facility sits above standard variable rates, reflecting the higher risk the lender takes when you hold two properties simultaneously. If you're drawing funds progressively over several months, the interest capitalisation means the effective cost is higher than the stated rate, because each month's interest is added to the balance and compounds in subsequent months.

For a scenario where the total loan amount is drawn over six months and the bridging period extends to ten months, the accumulated interest can represent a significant portion of the final balance. Lenders also assess serviceability differently during construction, because you're not making repayments but the debt is increasing. If your income changes or your existing property takes longer to sell, the lender may refuse further draws, leaving you unable to complete the build without sourcing alternative funds. This is a material risk that needs to be addressed in the initial application, particularly if your income relies on irregular commissions or contract work.

Structuring the exit strategy before settlement

You must have a defined plan to repay the bridging facility before the lender will approve the application. The most common exit strategy is the sale of your existing property, but the lender will want evidence that the property is marketable and priced appropriately for a sale within the bridging period. This typically means providing a recent appraisal, confirmation that the property is in saleable condition, and a clear timeline for listing. If the property requires significant preparation or repairs before it can be sold, the lender may decline the bridging loan application or reduce the approved amount to account for the additional time required.

Some borrowers in Fairfield list their existing home at the same time they commence construction, which reduces the bridging period and minimises capitalised interest. The downside is that if the property sells before construction completes, you need temporary accommodation, which adds cost and disruption. Alternatively, you can delay listing until construction is further advanced, but this increases the risk that the property does not sell within the bridging loan term. The decision depends on how confident you are in the local market and whether you can afford the holding costs if the sale is delayed.

When bridging finance may not be suitable during construction

If your existing property is difficult to sell, either due to condition, location, or market conditions, bridging finance introduces significant risk. A bridging loan assumes the sale will occur within a defined period, and if that does not happen, you are left holding two properties with mounting debt and potentially no capacity to refinance. Similarly, if your income is variable or your employment is not secure, the lender may decline the application or require additional security, which can complicate the approval process.

An alternative is to sell your existing home first and arrange temporary accommodation while construction is underway. This removes the need for bridging finance entirely and eliminates the risk of capitalised interest and extension fees. The trade-off is the cost and inconvenience of moving twice, and the possibility that property values increase while you are renting, reducing your purchasing power. For families with school-aged children or specific timing constraints, this may not be practical, which is why bridging finance remains a common solution despite the higher cost. If you are weighing these options, a home loan refinance to access equity before listing may provide the deposit needed to commence construction without requiring a bridging facility, depending on your loan to value ratio and borrowing capacity.

Call one of our team or book an appointment at a time that works for you to discuss whether bridging finance aligns with your construction timeline and sale strategy.

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