Renovation Loans Let You Borrow Against Future Value
A renovation loan allows you to borrow additional funds on top of your existing home loan to complete improvements or extensions, with the lender assessing the property based on its value after the renovation rather than its current value. Instead of saving for years or draining your offset account, you can access the capital needed to add a second bathroom, update an outdated kitchen, or convert unused space into a rental suite. For Hobart homeowners, where older weatherboard cottages and mid-century homes make up a large portion of the housing stock, these loans provide a practical way to modernise a property while living in it.
The lender commissions a registered valuer to provide two valuations: one for the property in its current state and one for the property after the planned works are completed. The difference between the two determines how much you can borrow. Consider a homeowner in West Hobart with a weatherboard cottage valued at $650,000. They want to add a second storey with two bedrooms and a bathroom. The valuer assesses the completed project at $820,000. The homeowner can borrow against that higher value, provided they meet serviceability requirements and the loan to value ratio stays within the lender's policy, typically 80 per cent without paying Lenders Mortgage Insurance.
How Construction Drawdowns Work
Funds are released in stages as the renovation progresses, not as a lump sum at settlement. Lenders require a fixed price building contract with a licensed builder and a detailed scope of works. The builder submits progress claims at agreed milestones, such as completion of the frame, lockup, or final fit-out. The lender arranges an inspection, and once the stage is verified, the funds are released to the builder or directly to you if you are managing the project yourself.
This structure protects both you and the lender. It ensures the money is spent on the renovation and that the work is actually completed before the next tranche is paid. During construction, you typically pay interest only on the amount drawn down, not the full approved loan amount. Once the renovation is finished and the final inspection is complete, the loan converts to principal and interest repayments unless you have arranged otherwise.
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Serviceability Is Assessed on the Full Loan Amount
Even though funds are released progressively, the lender assesses your capacity to service the full loan amount from day one. If you are borrowing an additional $170,000 for the renovation, your income and expenses will be tested as though that full amount is already drawn and accruing interest. The serviceability buffer still applies, meaning the lender will test your ability to repay at an interest rate at least 3.0 percentage points above the product rate. If you are on a variable rate and your total borrowing pushes your debt-to-income ratio above six times your gross annual income, some lenders may decline the application or require a larger deposit, depending on their current lending mix and the DTI limits in place.
In our experience, borrowers underestimate how much the additional loan amount affects serviceability, particularly if they have other commitments such as investment property loans, car finance, or credit card limits. A Hobart couple earning a combined $140,000 per year may find they can service the renovation loan comfortably, but if one partner also has an investment loan in Glenorchy with interest-only repayments, the lender will assess both loans together, and the combined commitment may reduce the amount they can borrow.
Can You Renovate Without a Fixed Price Contract?
Most lenders require a fixed price contract with a registered builder for any renovation loan. If you plan to manage the project yourself or engage tradespeople on a pay-as-you-go basis, you will struggle to find a lender willing to fund the works as a construction loan. Some lenders offer a redraw facility or a top-up on your existing loan if you have sufficient equity, but this is different from a renovation loan. The funds are paid in full at settlement, you manage the money yourself, and the lender does not inspect progress or release funds in stages.
This option suits smaller projects where you do not need a builder, such as new flooring, repainting, or landscaping. It also suits owner-builders with the skills and time to manage a renovation, provided they can meet council and insurance requirements. For anything structural, such as extensions, second storeys, or major internal reconfigurations, a fixed price contract with a licensed builder is usually non-negotiable.
Hobart Buyers Often Renovate Older Housing Stock
Hobart's inner suburbs, including West Hobart, North Hobart, Sandy Bay, and South Hobart, contain a high proportion of older weatherboard and brick homes built between the 1950s and 1980s. Many have outdated layouts, single bathrooms, and limited insulation. Renovating rather than buying a newer property in a less central location often makes financial sense, particularly for buyers who want to stay close to the Hobart CBD, the waterfront, or schools in established areas.
The Tasmanian climate also makes energy efficiency a priority. Double glazing, heat pumps, and ceiling insulation are common inclusions in renovation projects. Some buyers extend to capture northern light or add passive solar design features that reduce heating costs through winter. These improvements increase comfort and running costs as well as resale value, but they require upfront capital that most households do not have sitting in an offset account.
Interest Rates and Loan Structures for Renovation Loans
Renovation loans can be structured as variable, fixed, or split, depending on the lender and your preference. During the construction phase, most lenders charge a variable rate even if you plan to fix the loan once the renovation is complete. This is because the loan amount increases progressively as each drawdown is made, and a fixed rate cannot easily accommodate that changing balance.
Once construction is finished, you can usually lock in a fixed rate on part or all of the loan. Splitting the loan between fixed and variable gives you some certainty on repayments while keeping a portion flexible for additional repayments or access to a linked offset account. Some lenders also offer portability, which allows you to take the loan with you if you sell the renovated property and buy another, though conditions apply and the feature is not universal.
What Happens If the Project Runs Over Budget?
If your renovation costs more than the amount approved by the lender, you will need to cover the shortfall from your own funds. Lenders do not automatically approve additional borrowing mid-project unless you apply for a variation and the valuation supports it. In a scenario where the builder encounters structural issues not identified in the original scope, such as asbestos or foundation movement, the cost can blow out quickly. This is why a building and pest inspection before committing to a renovation loan is a sensible step, even though it is not always required by the lender.
If you cannot cover the additional cost and the builder stops work, the lender may refuse to release further funds until the contract is amended and a new valuation is completed. This can delay the project and leave you paying interest on a partially completed renovation while living in a construction zone.
Refinancing to Release Equity for Renovations
If you have owned your home for several years and its value has increased, refinancing with a different lender can release equity for renovation without needing a construction loan. Instead of progressive drawdowns, you receive the funds at settlement and manage the renovation yourself. This approach works if you have a strong credit history, stable income, and enough equity to keep the loan to value ratio at or below 80 per cent after the increase in borrowing.
Refinancing also gives you the opportunity to move to a lower rate or access features your current lender does not offer, such as an offset account or fee-free additional repayments. The downside is that refinancing involves application fees, valuation costs, and potentially discharge fees from your current lender. You will also need to meet current serviceability requirements, which may be tighter than when you first took out your loan, depending on changes to your income or other debts.
Call one of our team or book an appointment at a time that works for you. We'll walk through your borrowing capacity, the lenders that suit your project, and how to structure the loan so you're not paying more interest than necessary during construction. Whether you're adding a bedroom in Battery Point or reconfiguring a North Hobart cottage, we can help you get the funding sorted before the builder starts.
Frequently Asked Questions
What is a renovation loan?
A renovation loan allows you to borrow additional funds on top of your existing home loan to complete improvements or extensions, with the lender assessing the property based on its value after the renovation is completed. Funds are released in stages as the work progresses, and you typically need a fixed price building contract with a licensed builder.
Do I need a fixed price contract to get a renovation loan?
Yes, most lenders require a fixed price contract with a registered builder for any renovation loan. If you plan to manage the project yourself or engage tradespeople on a pay-as-you-go basis, you may need to consider a redraw facility or top-up loan instead, where funds are paid in full at settlement.
How are funds released during a renovation loan?
Funds are released in stages as the renovation progresses, not as a lump sum. The builder submits progress claims at agreed milestones, the lender arranges an inspection, and once the stage is verified, the funds are released. During construction, you typically pay interest only on the amount drawn down.
Can I refinance to release equity for a renovation?
Yes, if you have enough equity in your home, refinancing with a different lender can release funds for renovation without needing a construction loan. You receive the funds at settlement and manage the renovation yourself, but you will need to meet current serviceability requirements and may pay application and discharge fees.
What happens if my renovation goes over budget?
If your renovation costs more than the lender approved, you will need to cover the shortfall from your own funds. Lenders do not automatically approve additional borrowing mid-project unless you apply for a variation and the valuation supports it, which can delay the project if not managed properly.