How to Finance a Home Renovation With a Mortgage Broker

A renovation often starts with plans for a wider kitchen bench, a brighter living area or a second bathroom. Finance comes later, but it can determine whether the build runs smoothly or stalls halfway through.

Borrowing capacity can be tight when interest rates and living costs are high. Financing a renovation is therefore less about chasing a headline rate and more about arranging funds so each payment is available when the builder needs it.

This is general information, not personal financial advice. Confirm your options with a licensed broker or lender, and check building contract rules with the regulator in your state or territory.

Get the scope right before the finance

Lenders fund a defined project, not a general intention to renovate. Settle the scope with your designer, then collect two or three detailed quotes from licensed builders.

Consider adding a contingency of 10% to 20%, depending on the property's age and project complexity. Drainage problems, structural repairs and material substitutions can raise costs. A buffer may be easier to fund than extra credit after work begins.

What a mortgage broker actually does

A broker's role in a renovation is not simply to find a loan. The broker assesses how much you may be able to borrow, identifies lenders whose policies fit the project and helps structure the release of funds around the building schedule.

Mortgage brokers must act in your best interests when providing credit assistance. They are commonly paid through upfront and ongoing commissions from lenders, although some also charge a direct fee. The broker should explain these payments and any other costs before you proceed.

Useful questions for the first meeting include:

• Which options did you consider, and why does this one suit my project?
• What are the total costs, including application, valuation, legal and discharge fees?
• How are you paid for arranging this loan?
• What happens if the build runs late or exceeds the budget?
• How long should each approval and payment stage take?

Five ways to fund a renovation

Most renovation funding follows one of five paths. The right choice depends on the project's size, your available equity, the building contract and how quickly the money is needed.

Refinance to access equity

Refinancing to a new lender may let you borrow against available equity while reviewing your loan terms. Check break costs on a fixed loan, possible lenders mortgage insurance if the new balance exceeds 80% of the property's value and the time needed to settle.

Woodrow Finance outlines refinancing as a five-step process and notes that switching lenders can take four to eight weeks. Treat that timeframe as a planning guide and confirm current processing times before setting a construction start date. If you are renovating in Brisbane, do not choose solely because a firm appears in a search for the best refinance mortgage broker in Brisbane. Ask for a clear comparison of switching costs, accessible equity and repayment changes.

Top-up or loan increase

Increasing a loan with your current lender can suit a contained project and may be quicker than refinancing. Check the interest rate and fees, and consider whether the increase extends your repayment period. Spreading renovation costs across a fresh 25-year or 30-year term can add substantial interest.

Redraw and offset

For smaller or short-term expenses, money already held in a redraw facility or offset account may be useful. An offset is a transaction account linked to the home loan, while redraw gives access to eligible extra repayments, subject to the loan's conditions. Using either option can reduce your emergency buffer, so decide how much cash must remain available before paying renovation invoices.

Construction or major renovation loan

For structural work, additions or whole-home renovations, funds may be released progressively at agreed stages. During construction, borrowers commonly pay interest only on the amount drawn rather than the full approved limit. Confirm when principal-and-interest repayments begin and model the higher payment before committing.

Personal loan

An unsecured personal loan may suit a contained project such as a bathroom update or joinery package. It avoids restructuring the mortgage, but the interest rate is often higher. Compare the total repayment cost, not just the faster approval process.

Lending settings that shape borrowing power

Australian lenders generally assess a home loan at an interest rate above the rate the borrower will initially pay. APRA's serviceability buffer provides a minimum benchmark for regulated lenders, although individual lenders may apply additional policy rules.

Your debt-to-income ratio can also affect the result. Income, home loans, personal loans, credit card limits and other commitments are considered together. Ask a broker to test several versions of the plan, such as the full scope, a reduced scope and work staged over two years, before paying for detailed drawings or signing a building contract.

Paying the builder without cash-flow problems

Progress payments follow the build. A contract may require a deposit followed by payments at stages such as base, frame, lock-up, fixing and completion. Renovation contracts can use different milestones, so the loan's drawdown process must match the builder's schedule.

Each draw usually requires a builder's invoice, and the lender may order a valuation or inspection before releasing funds. Those checks take time. Ask how each draw is requested, which documents are needed and how long approval normally takes. Share that process with the builder before work begins.

If refinancing is part of the plan, Woodrow Finance's four-to-eight-week settlement guide is a useful reminder to begin paperwork before the builder confirms a start date. Allow extra time if the valuation, approval documents or property title require review.

In Queensland, deposit limits for domestic building contracts vary by contract value. Projects priced at $20,000 or more generally have a 5% cap, while different limits apply to lower-value contracts and some specialist work. Other states and territories have their own rules, so confirm the current requirements where you are building.

Why local knowledge can help

Lending policies are usually national, but property valuations, building practices and approval processes vary by area. A broker who regularly handles local renovation projects may know which documents commonly delay an application and how lenders tend to approach different types of additions.

For projects in Melbourne's east, a mortgage broker in Camberwell can compare a loan increase with refinancing or construction finance and align drawdowns with the contract. Inovayt says its Camberwell brokers compare options from a panel of more than 40 lenders. That breadth can be useful when policies differ, but the broker should still explain why the recommended option suits your circumstances. When speaking with Inovayt or another broker, ask to see the comparison in writing.

Mistakes worth avoiding

• Judging loans only by the advertised rate rather than total interest, fees and loan term.
• Overlooking fixed-rate break costs before refinancing.
• Assuming refinancing is free. Discharge, application, valuation and state-based charges may apply.
• Forgetting to connect an offset account correctly after changing lenders.
• Applying for new credit cards or buy-now-pay-later accounts during assessment.
• Paying a builder's invoice before confirming that it meets the lender's drawdown requirements.

The practical advantage is planning

A renovation is more likely to run into trouble when funds arrive late, the contingency is too small or repayments change unexpectedly. Whether you speak with Woodrow Finance, Inovayt or another licensed broker, bring your scope, timeline, quotes and financial documents. Ask the broker to set out the proposed funding sequence, fees and repayment changes in writing before you commit.

Related articles from FINE Magazine: