Building a property portfolio is rarely a straight line. To grow faster, many investors look for ways to leverage their existing assets, and one of the most common strategies is cross-collateralisation. While it can open doors to additional lending, it also ties your properties together in ways that aren’t always obvious at first glance.
What Is Cross Collateralisation?
Cross-collateralisation happens when you use the equity in one property as security for a loan on another. Instead of keeping each loan separate, your lender effectively “links” the properties under one umbrella.
For example, if you already own your home and want to purchase an investment property, your lender may use both properties as security for the new loan. On paper, this boosts your borrowing power, since the combined equity across properties is considered.
It sounds straightforward, but as with most lending strategies, the devil is in the details.

The Benefits of Cross Collateralisation
For the right investor, cross-collateralisation can be a useful tool. Some of the advantages include the following.
Faster Access to Equity
You don’t need to sell a property or save a large deposit to buy your next one. Lenders will release the equity from your existing property to help fund the purchase.
Potentially Sharper Interest Rates
Some lenders offer better rates when you tie your owner-occupied property to your investment loan, which can reduce your repayments across the portfolio.
Convenience of One Loan Structure
In some cases, cross-collateralisation simplifies loan management by rolling properties into a single facility, with one repayment to track.
Lower Upfront Costs
You avoid the need for separate loan applications, valuations, or deposits for each property, making it easier to move quickly on opportunities.
Cross-Collateralisation Risks to Watch Out For
Despite the appeal, cross-collateralisation isn’t without its challenges.
Reduced flexibility
When you sell, refinance, or restructure one property, the bank will reassess the whole loan. This can restrict your ability to move quickly or shop around with other lenders.
Linked Risk Across Properties
If one property loses value, the lender may require you to inject more funds or limit your ability to access equity, even if your other properties are performing well.
Higher Lender Control
In the event of repayment issues, the bank can decide which property to sell or apply repayments toward. This reduces your control over your portfolio.
More Complex Exit Strategies
Untangling cross-collateralised loans can be time-consuming and expensive, especially once your portfolio has grown.
How to Determine If Cross Collateralisation Is Right for You
Cross collateralisation often works best for investors at the beginning of their journey who are focused on getting into the market quickly and holding for the long term. If you’re not planning to sell or refinance in the near future, the convenience can outweigh the drawbacks.
However, for more advanced investors, separate loans may provide greater flexibility and control. Many prefer to structure loans individually to reduce exposure and keep options open for refinancing, diversifying lenders, or selling properties independently.
When weighing up strategies like cross-collateralisation, the key is ensuring your finance and build decisions work together. At Better Way 2 Build, we take a strategy-first approach to property investment. Contact us today to find out more about the ins and outs of property investment.