Construction Loans for Investment Properties

Building an investment property involves different financing structures than buying established assets or constructing your own home.

Construction finance for investment purposes operates on progressive drawdowns where the lender releases funds in stages as construction reaches specific milestones. You pay interest only on the amount drawn down at each stage, not the full loan amount from day one. The critical difference for investment properties is that you're managing construction risk while also needing to demonstrate rental income potential to satisfy serviceability requirements.

How Progressive Drawdowns Work on Investment Builds

The lender releases funds according to a progress payment schedule, typically in five to six instalments tied to construction milestones. At practical completion of the slab, for instance, you draw the first payment which might be 15-20% of the building contract value. Interest charges begin only on that drawn portion.

Consider a family lawyer building a dual-occupancy investment property in Brisbane's inner suburbs with a building contract of $650,000. At slab stage, the lender releases $130,000. At that point, monthly interest charges apply only to the $130,000 drawn, not the full $650,000 loan approval. By frame stage, another $195,000 is released, and interest then applies to $325,000. This continues until practical completion when the full amount has been drawn and you convert to standard investment loan repayments.

Most lenders charge a Progressive Drawing Fee of $200-$400 per drawdown to cover the cost of progress inspections. Over five drawdowns, that adds $1,000-$2,000 to your total project costs. Some lenders cap these fees or waive them for larger loan amounts, but expect to include them in your budget.

Council Approval and Development Application Requirements

You cannot draw funds until you have council approval in place. Lenders require a copy of the development application approval and building permit before settlement on a construction loan. This includes evidence that the registered builder has appropriate licensing and insurance.

In a scenario where you're building two townhouses on a subdivided block, the development application process can take three to six months depending on the local council. Brisbane City Council and Gold Coast City Council have different timeframes and requirements for dual-occupancy approvals. Your construction loan approval remains valid for a set period, typically 90 days, so timing the DA approval, loan application, and land settlement requires coordination. Many lenders include a condition that you must commence building within a set period from the Disclosure Date, usually six months, or the approval lapses.

Fixed Price Contracts Versus Cost Plus Arrangements

Most lenders will only finance construction under a fixed price building contract with a registered builder. This contract locks in the total building cost and provides certainty for both you and the lender about the funds required. The progress payment schedule is attached to the contract and governs when each drawdown occurs.

Cost plus contracts, where you pay for materials and labour as incurred plus a builder's margin, are difficult to finance for investment properties. Lenders view them as higher risk because the final cost is unknown. Owner builder finance for investment properties is even more restricted, with most major lenders excluding this option entirely or requiring substantial equity buffers and construction experience.

Interest Calculations During Construction

During the construction phase, most lenders offer interest-only repayment options. You're paying interest only on the progressive drawdowns, not principal, which keeps monthly costs lower while the property isn't generating rental income. The interest rate during construction is typically the same as the ongoing investment loan rate, though some lenders apply a slightly higher rate during the building phase.

In our earlier example of the $650,000 build, if the average drawn amount over the six-month construction period is $350,000 at a rate of 6.5%, monthly interest payments average around $1,900 during construction. Once complete and rented at $750 per week, the rental income covers a significant portion of the interest costs on the full loan amount.

Land and Construction Package Structuring

When purchasing suitable land and then building, you're managing two transactions. Some lenders will finance both components under a single facility, while others require separate loans for land purchase and construction.

A land and construction package typically works as follows: you settle on the land purchase first using the land component of your approval, then once council plans are approved and the building contract is signed, the construction component activates. During the period between land settlement and construction commencement, you're paying interest on the land loan only. If land costs $400,000 and construction costs $650,000, you're servicing a $400,000 loan until building starts, then progressive drawdowns begin.

This structure requires careful cash flow management, particularly for family lawyers managing income variability through different practice structures. Investment loans for lawyers often account for this variability, but construction adds complexity because serviceability is assessed on projected rental income from a property that doesn't yet exist.

Serviceability Assessment for Investment Construction

Lenders assess your ability to service the loan based on projected rental income once construction completes. They typically use 80% of the market rent as assessable income and apply their standard serviceability buffers. If market rent is estimated at $800 per week, the lender uses $640 per week in their calculations.

The rental assessment requires a qualified valuer's opinion of the completed property's rental potential. This forms part of the construction loan application and determines how much rental income the lender will recognise. If you're building in an area with limited comparable rental data, particularly for newer property types, obtaining a supportable rental assessment becomes more important.

Family lawyers often carry existing debt from principal place of residence mortgages or renovating their house, which affects how much construction finance they can secure. The combination of existing loan commitments, interest during construction before rental income starts, and the eventual rental income all factor into whether the application proceeds.

Conversion to Permanent Finance

At practical completion, the construction loan converts to a standard investment loan. Most lenders structure this as a construction to permanent loan, meaning you don't need to reapply or go through a second approval process. The conversion happens automatically once the valuer confirms practical completion and issues a final valuation.

The permanent loan terms then apply. You can typically choose between ongoing interest-only repayments for a set period, usually up to five years, or principal and interest repayments. For investment properties, most investors maintain interest-only to maximise tax deductions and cash flow, particularly when expanding your property portfolio with multiple assets.

Call one of our team or book an appointment at a time that works for you. We work with lenders who understand construction finance for investment properties and the specific income patterns that family lawyers manage across different practice structures.

Frequently Asked Questions