Construction Project Ownership Structures: Why It Matters.
By Hussein Najm
This is one of the most common questions we get from clients before they've even chosen a builder. What they don't realise is that the ownership structure they choose doesn't just affect tax: it changes which lenders will even look at the deal, how the loan is regulated, and whether they can capitalise interest during the build instead of paying it out of pocket every month.
Here's how it actually plays out across the three most common structures.
What Is Interest Capitalisation, and Why Does It Matter?
Before comparing structures, it's worth understanding the mechanism that makes some of them more attractive than others for construction finance.
A construction loan is drawn down in stages as the build progresses: slab, frame, lock-up, fit-out, completion. Interest is charged on whatever has been drawn so far, not on the full approved limit. Under a standard arrangement, the borrower pays that interest each month as it accrues, on top of whatever they're currently paying to live somewhere (rent, or their existing mortgage).
Interest capitalisation changes this. Instead of billing the borrower monthly, the lender adds the accruing interest to the loan balance itself. Nothing is paid during the build, the debt simply grows, and the higher balance is repaid (or refinanced) once the property is complete or sold.
The appeal is obvious: cash flow. A developer building three townhouses doesn't have to find loan repayments on top of holding costs, land tax, and construction variations. A client renovating while still paying rent elsewhere doesn't get squeezed from both directions.
The cost is just as real, though. Capitalised interest compounds (you're effectively paying interest on interest), and the loan balance at completion is higher than the amount actually spent on the build. If the exit strategy is a sale, the numbers need to stack up against that larger debt. If the exit is a refinance to a standard mortgage, the borrower needs to qualify for a bigger loan than the construction cost alone would suggest.
Whether capitalisation is even on the table, though, comes down almost entirely to how the loan is regulated, which brings us to ownership structure.
Building in Your Own Name: NCCP-Regulated and Widely Accessible
When an individual borrows to build a home for personal or domestic use, whether that's an owner-occupied home or, in some cases, a residential investment property, the loan is regulated under the National Consumer Credit Protection Act (NCCP). This is standard "consumer" lending, and it comes with responsible lending obligations: the lender has to verify the borrower can service the actual repayments, not just the eventual end debt.
Pros:
The widest lender panel available: all four major banks, second-tier banks, credit unions, and most non-bank lenders compete for this business.
Generally the most competitive interest rates and lowest fees, since this is the most standardised, lowest-risk lending category.
Access to grants and concessions tied to individual ownership, such as First Home Owner Grants or stamp duty concessions, where eligible.
Cons:
Because NCCP loans must be serviced as they're drawn, interest capitalisation is rarely available. The borrower needs to demonstrate they can afford the repayments during construction, not just at the end.
No asset protection. The debt and the asset sit in the individual's name, exposed to personal risk.
Serviceability assessments are strict and can be a genuine barrier for anyone with existing debt or variable income.
We recently worked with a couple building their first home while still renting. Because the loan was in their personal names for a home they intended to live in, it was assessed under NCCP rules. That meant proving they could cover both rent and progressive construction repayments during the build, tight, but achievable. What it also meant was access to a mainstream lender at a genuinely competitive rate, something that wouldn't have been on the table under the structures below.
Building Through a Company: Non-NCCP Territory
When the borrowing entity is a company, typically because the build is for investment, development, or business purposes rather than personal use, the loan generally falls outside NCCP regulation. This single distinction changes almost everything about the deal.
Pros:
Because the loan isn't subject to responsible lending servicing rules, interest capitalisation is commonly available. This is the main reason developers and investors use company structures for construction finance.
Asset protection: the debt and liability sit with the company, separating it from the directors' personal assets (though guarantees usually still apply, see below).
More flexibility in how the lender structures drawdowns, terms, and exit strategy, since commercial lending isn't bound by the same consumer protections.
Cons:
Company construction lending is typically the domain of non-bank lenders, private lenders, and specialist commercial finance providers rather than the major banks' standard home loan products. Although not really a con, this is something to be mindful of.
Higher interest rates and fees than an equivalent individual loan, reflecting both the lender risk appetite and the lighter regulatory oversight.
No access to owner-occupier grants or concessions.
A client of ours set up a company specifically to build a triplex for sale. Because the loan was assessed as non-NCCP, the lender agreed to fully capitalise interest across the 13-month build, meaning the client didn't have to fund repayments while simultaneously covering holding costs on the land. The trade-off was a rate roughly in line with typical commercial construction pricing, well above what an individual home loan would attract, and both directors had to provide personal guarantees.
Building Through a Trust: It Depends on the Trustee and the Purpose
Trusts are the structure where the answer genuinely changes case by case, because two variables matter: who the trustee is (an individual or a corporate trustee), and what the property is for.
If a discretionary trust is being used essentially as a vehicle for a beneficiary's personal home, some lenders will still treat the loan as NCCP-regulated, applying the same servicing scrutiny as an individual borrower. If the trust, particularly a unit trust or a discretionary trust with a corporate trustee, is holding the property purely for investment or development, the loan is far more likely to sit outside NCCP, opening the door to capitalisation in the same way a company structure does.
Pros:
Asset protection and, for discretionary trusts, flexibility to distribute rental income among beneficiaries for tax planning.
Where the trust is genuinely investment-purpose with a corporate trustee, access to interest capitalisation similar to a company structure.
Useful for family groups pooling resources or holding property across generations.
Cons:
The smallest and most cautious lender pool of the three structures. Many mainstream lenders won't lend to trusts at all for construction purposes, and those that do apply extra scrutiny to the trust deed, the trustee, and the beneficiaries.
Setup and ongoing accounting costs are higher, and loan applications take longer due to the additional legal documentation required.
Self-managed super fund (SMSF) trusts are a special, even more restricted case: only a handful of lenders offer SMSF construction lending, borrowing rules under the super law are strict, and interest capitalisation is generally not available at all.
We had a family come to us wanting to build an investment property through their existing discretionary trust. The original deed had an individual acting as trustee, which immediately ruled out several lenders who only deal with corporate trustees for investment lending. Once they updated the trust to appoint a corporate trustee, a straightforward legal step, but one that took a few weeks, we were able to place the loan with a lender that allowed interest to capitalise for the build period, which suited their cash flow far better than servicing repayments on top of their existing home loan.
Which Structure Actually Suits Your Build?
There's no universally "best" structure. The right answer depends on whether you're building a home to live in or an asset to invest in and sell, how much cash flow flexibility you need during construction, and how much you value asset protection against the cost of a smaller, pricier lender pool.
As a rough guide: if you're building your own home, your own name will almost always get you the best rate and the broadest lender choice, but you'll need to service the loan as you go. If you're developing or investing and cash flow during the build is the priority, a company or a properly structured trust opens the door to interest capitalisation, at the cost of higher rates, personal guarantees, and a narrower field of lenders willing to do the deal.
Important note:
This article is general information only and doesn't take your personal or financial circumstances into account. Before settling on a structure, it's worth talking it through with your broker, your accountant, and your solicitor together, as the right call is usually the one that works across your finance, your tax position, and your long-term plans for the property, not just the loan itself. Please seek independent financial, legal, and tax advice tailored to your own situation before making any decisions, and don't rely on the contents of this post as advice.