Why Should You Plan Early for a Multi-Unit Build Loan?

Building more than one home on your block is possible on a single income, but it needs a tighter plan than a standard build.

If you are a first home buyer thinking about a duplex or a few townhouses, you probably have a lot of questions and a fair bit of worry. That is normal. This article walks through how the loan is paid out, how lenders may view a single income, and what to settle before you sign a building contract.

How Does a Multi-Unit Construction Loan Work?

A construction loan pays your builder in stages as work is completed, rather than handing over the full amount on day one. Each stage is usually paid after an inspection confirms the work is done.

This staged payment is often called a progress payment schedule or a construction draw schedule. Typical stages include the slab, frame, lock-up, fit-out and completion. You only pay interest on the amount drawn down so far, so your repayments start small and grow as the build moves along. Our construction loans page explains the stages in more detail.

The trade-off is that the loan is only as useful as your paperwork. Lenders generally want council approval, council plans and a signed building contract with a registered builder before they release funds. Delays in any of these can hold up your first payment.

Can You Get Construction Finance on a Single Income?

It can be possible, but a single income leaves less room in the lender's assessment, so your debts, living costs and deposit matter more. Lenders check whether your income can cover the repayments, and policies differ from lender to lender.

There is also a second hurdle for multi-unit projects. Some lenders treat building more than one dwelling as a standard construction loan. Others treat it as a development and assess it differently, which can mean extra requirements. You can get a rough idea of your starting point with our borrowing capacity calculator, but the answer for a multi-unit build depends on the lender.

Some first home buyer schemes have rules about the type of property or loan they cover. Check the conditions on our first home buyers page before you assume you qualify, and talk to a broker about your specific plan.

What Will Interest Cost While You Build?

During construction, many lenders offer interest-only repayments, so you pay only the interest on what has been drawn. The cost climbs with each stage, so it helps to price it before you start.

As an example, consider a buyer on a single income who owns a block and plans to build two townhouses. They plan to live in one and rent out the other. Their broker compares lenders and sets up a loan with interest-only repayments during the build, plus a fixed price building contract with a registered builder. The buyer also keeps a cash buffer for extras the contract does not cover.

After the slab stage, say $200,000 has been drawn. Using an illustrative rate of 6.75% p.a., interest on that amount is $13,500 a year, or about $1,125 a month. The buyer knows this number is the starting point and that it rises as the frame and fit-out are paid. By working out the likely figure at each stage before signing, they can see whether their single income and buffer cope with the heaviest months. The outcome is a build they can afford to finish, rather than a surprise at lock-up stage. You can test your own numbers with the interest only mortgage calculator.

The main risk is that interest-only payments do not reduce your loan. Once the build ends, the loan moves to principal and interest repayments, which are higher.

Fixed Price vs Cost Plus Contracts: Which Suits a Tight Budget?

A fixed price contract sets the building cost up front, which makes budgeting more predictable on one income. A cost plus contract charges the actual cost of the build plus a margin, so the final figure can move.

The trade-off with a fixed price contract is that changes you request later, called variations, are usually charged on top. Unexpected site issues may also add cost, depending on what the contract says. A cost plus contract can feel flexible, but lenders may be cautious about it because the total cost is harder to pin down. Read the inclusions closely, and ask what happens if the builder runs into problems with plumbers, electricians or other trades.

Your lender will also want to see that the contract matches the amount you are borrowing. If the contract and the loan do not line up, the approval can stall.

When Does Development Finance Make More Sense?

Development finance may suit you if you plan to build several dwellings and sell some of them, rather than keep them. These loans are built around the project, and lenders can look closely at the numbers behind it.

A standard construction loan is usually designed for you to build and keep your home. A project with several units, especially one where you plan to sell, can sit outside what a standard loan covers. Development loans can come with different conditions, such as a larger deposit or proof of how the project will be repaid, and these vary by lender. Our development finance page covers what to expect.

For a first home buyer on one income, this is a big step up in risk. It is worth talking through whether a smaller build, such as a dual occupancy you keep, gets you to your goal with less pressure.

Questions to Settle Before You Apply

Before you lodge a construction loan application, confirm three things: whether the lender accepts your project type, who your builder is, and how much of a buffer you have for the unexpected.

It also pays to check council requirements early. A development application or planning permit can take time, and your loan timing depends on it. If your plan involves buying the land at the same time, a house and land package may be one way to line up the land and build, though it has its own rules and costs.

Call one of our team or book an appointment at a time that works for you. We can compare options from our panel of lenders and talk through your plan.

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