Important
Disclaimer: This article is general information only and is not financial advice. Owner Inspections provides property inspection advice, not lending advice. Speak with a licensed mortgage broker, lender or financial adviser before making borrowing decisions.
Renovating can make a home more comfortable, useful and appealing. It can also help owners avoid the cost and stress of moving. The harder question is usually money. Should you use savings, redraw, a personal loan, a construction loan or the equity already sitting in your property?
For many Australians, home equity may help fund a kitchen, bathroom, extension, roofing repair or outdoor upgrade. But using equity also means borrowing against your home, so the decision should start with three questions: how much usable equity do you have, can you afford the repayments, and does the property suit the renovation you want to complete?
5.1%
Rise in New Dwelling Loan Commitments
9.5%
Rise in Loan Commitment Value
Reference: ABS Lending Indicators
What Is Home Equity?
Home equity is the difference between your property’s current value and the amount still owing on your home loan.
Simple formula:
Home equity = current property value - remaining home loan balance
Equity can grow when your property value rises, when you pay down your mortgage, or both.
For example:
| Calculation | Example |
|---|---|
| Property value | $800,000 |
| Current home loan balance | $400,000 |
| Total equity | $400,000 |
| 80% of property value | $640,000 |
| Estimated usable equity | $240,000 before lender assessment |
This does not mean $400,000 is available to spend. Lenders usually focus on usable equity, not total equity. They will also look at income, expenses, credit history, loan type, property valuation and repayment ability.
Plan Your Renovation Before You Borrow
Before using home equity for upgrades, check whether hidden defects could change your budget, scope or priorities.
Building Inspection
What Is Usable Equity?
Usable equity is the portion of your equity that a lender may allow you to borrow against.
A common estimate is: 80% of property value minus current loan balance
The 80% figure matters because borrowing above this point may take your loan-to-value ratio, or LVR, above a lender’s usual comfort level. LVR means the loan amount divided by the property value.
Caution
Do not assume the full difference between your property value and mortgage balance is available to spend. Your lender may apply a lower borrowing limit after reviewing your financial position.
Can You Use Home Equity to Fund Renovations?
Yes, many Australian homeowners use home equity to fund renovations, subject to lender approval and borrowing capacity.
Common renovation projects include:
- kitchen upgrades
- bathroom renovations
- extensions
- outdoor entertaining areas
- roof repairs
- drainage improvements
- waterproofing repairs
- ventilation and mould remediation
- structural repairs
- rectification of poor previous renovation work
NAB notes that using equity from a property can provide renovation funds, but it increases the loan balance and monthly repayments.
Before using equity for cosmetic work, it is worth checking whether the home has hidden issues that should come first. A property condition report can help identify visible defects, moisture problems, termite-conducive conditions, roof defects, drainage concerns and signs of structural movement.
How Do You Access Equity for Renovations?
Refinance Your Home Loan
Refinancing means replacing your current home loan with a new loan. This may be with your current lender or a new lender.
It may help if you want to access equity, review your interest rate, change loan features or restructure your loan. Many homeowners explore options like AFMS mortgage refinancing when planning larger renovation projects, because it can provide them with both access to funds and improved loan terms.
The risk is that refinancing can involve fees, a longer loan term and more total interest over time. ASIC warns that borrowers who switch lenders may end up with a longer loan term, and should consider costs such as LMI, discharge fees and loan arrangement fees.
Top Up Your Existing Home Loan
A home loan top-up increases your existing loan amount.
This may suit moderate renovations where you have enough equity and meet lender criteria. CommBank says topping up may cost less than other types of loans because home loans generally have lower interest rates than credit cards and personal loans, but it also means taking on more debt and may increase repayments.
Use Redraw
Redraw may be available if you have made extra repayments and your loan allows access to them. This can suit smaller renovation costs. The trade-off is that using redraw reduces your repayment buffer.
NAB describes redraw as a way to withdraw extra repayments made into a home loan if the borrower is ahead on repayments.
Use a Line of Credit
A line of credit gives flexible access to funds up to an approved limit.
This can suit staged renovations because you can draw money as needed. The risk is overspending, especially when renovation variations, fixture upgrades and labour costs keep rising.
Use a Construction Loan for Major Works
A construction loan may suit major structural renovations, extensions or staged building contracts.
Funds are often released in progress payments. This can help match funding to the build stage, but lenders may require more documentation, approvals and builder details.
Which Renovation Finance Option Is Best?
There is no single best option. The right choice depends on the renovation size, your existing loan, repayment capacity, fees, risk tolerance and whether the work is cosmetic or structural.
| Option | Best For | Main Benefit | Main Risk |
|---|---|---|---|
| Refinance | Larger renovations or switching lenders | May access equity and review loan terms | Fees, longer term, higher total interest |
| Home loan top-up | Moderate upgrades | Keeps funding tied to home loan | Repayments increase |
| Redraw | Smaller renovations | Uses extra repayments already made | Reduces financial buffer |
| Line of credit | Staged projects | Flexible drawdown | Overspending risk |
| Construction loan | Major structural works | Progress payments match build stages | More paperwork and lender oversight |
| Personal loan | Smaller projects without equity access | Faster access in some cases | Usually higher interest than home loan rates |
How Much Equity Can You Use for Renovations?
A rough usable equity estimate starts with LVR.
LVR = loan amount divided by property value
Example:
| Item | Amount |
|---|---|
| Estimated property value | $900,000 |
| 80% lender threshold | $720,000 |
| Current loan balance | $500,000 |
| Possible usable equity | $220,000 |
This is only a guide. Lenders may use their own valuation, not a real estate agent’s estimate. Income, expenses, credit history, dependants, credit cards and existing debts can all affect borrowing capacity.
Interest rates also matter. The RBA cash rate target was 4.10% from 18 March 2026, with the next update listed for 5 May 2026. Rate changes can affect lending rates and repayments, so borrowers should test their budget at more than one rate level.
What Are the Pros and Cons of Using Equity to Renovate?
Pros
Using home equity may help you access a larger renovation budget than a personal loan.
Home loan interest rates are often lower than unsecured personal loans or credit cards, although the debt may run for much longer.
Renovations can improve day-to-day living. Repairs may also protect the home from further damage, especially when dealing with leaks, poor drainage, timber decay, waterproofing failure, subfloor ventilation or pest-related risks.
Some upgrades may support buyer appeal, especially kitchens, bathrooms, layout improvements and outdoor areas.
Cons
The main downside is simple: your debt increases.
That may increase repayments and total interest. If you extend the loan term during refinancing, the total cost can rise even if the monthly repayment looks manageable.
LMI may apply if your new loan pushes your LVR above the lender’s threshold. Property values can also move, which may affect your equity position.
Renovation budgets can blow out due to hidden defects, material changes, labour delays, approval issues and variations. Aussie notes that using equity for renovations can increase mortgage balance and repayments, and a longer loan term may mean more interest over time.
Know What Your Home Needs First
A property condition report can help you spot visible defects, moisture issues, roof concerns and maintenance risks before committing renovation funds.
Condition Report
How Do Renovations Affect Property Value?
Renovations do not all add value in the same way.
The impact depends on location, property type, buyer demand, workmanship, layout, approvals and whether the renovation fixes real problems.
Kitchens, bathrooms and open-plan living areas can attract buyer interest. Outdoor spaces can also be popular in many Australian suburbs. But safety, water and structure issues should not be ignored.
A new kitchen may look good, but it will not solve subfloor moisture, poor drainage, roof leaks or active movement cracking.
Why Get a Building Inspection Before Using Equity to Renovate?
A building inspection before borrowing can help you decide where renovation money should go first.
This matters because many renovation budgets start with visible upgrades, such as benchtops, tiles, flooring and paint. But the property may need less visible work first.
A pre-renovation inspection can help identify:
- moisture ingress
- mould and poor ventilation
- roof leaks
- blocked or failing gutters
- drainage issues
- termite-conducive conditions
- timber decay
- waterproofing failure
- movement cracking
- poor previous renovation work
- safety and maintenance risks
Owner Inspections highlights independent inspections, detailed reports, photos and actionable guidance for homeowners, buyers and investors who want clearer property decisions.
| Inspection Finding | Renovation Impact |
|---|---|
| Moisture ingress | Budget may need to prioritise drainage, waterproofing or ventilation |
| Termite-conducive conditions | Pest management may be needed before cabinetry, flooring or extensions |
| Roof defects | Cosmetic interior upgrades may be delayed until leaks are resolved |
| Structural movement | Engineer or builder input may be needed before layout changes |
| Poor previous renovation work | Scope may need compliance review or rectification |
A building inspection is not a property valuation and it is not financial advice. It is a practical condition check that can support better conversations with builders, designers, lenders and advisers.
Do You Need Approval Before Renovating?
Some cosmetic changes may not need approval. Structural changes, extensions, external works and changes to services often do.
YourHome says different renovations may need different approvals. It also states that changes to plumbing, drainage, gas and electrical services require approval and inspection by the relevant authority, even where planning or building approval may not be needed.
In NSW, residential building work between $5,000 and $20,000 must be covered by a small jobs contract, while work over $20,000 has a separate contract template for new homes and major alterations and additions.
In Queensland, the QBCC says homeowners are responsible for making sure the right building approvals are in place before work starts, even if they have hired a builder.
How to Avoid Overcapitalising
Overcapitalisation happens when you spend more on renovations than the value they add to the property.
To reduce this risk:
- Review recent comparable sales
- Ask a local agent what buyers expect
- Prioritise safety, structure, water and pest issues before cosmetic upgrades
- Get quotes before borrowing
- Allow a contingency for defects and variations
- Avoid luxury upgrades that exceed suburb expectations
- Get a building inspection before finalising the scope
| Renovation Type | Possible Value Impact | Inspection Consideration |
|---|---|---|
| Kitchen | High buyer appeal | Check plumbing, ventilation and moisture |
| Bathroom | High buyer appeal | Check waterproofing and drainage |
| Extension | Adds space | Check structure, approvals, soil and drainage |
| Deck or outdoor area | Lifestyle appeal | Check timber decay, footings and drainage |
| Roof repairs | Protects property | Check leaks, flashing and gutters |
| Cosmetic repainting | Lower-cost refresh | Check moisture before painting |
Alternatives to Using Equity
Home equity is not the only way to fund renovations.
Alternatives include savings, offset funds, redraw, personal loans, staged renovation, construction loans or delaying non-urgent cosmetic work.
Savings can reduce borrowing, but may reduce your emergency buffer. Personal loans may be faster for smaller jobs, but unsecured credit often has higher interest than home loan lending.
For some homeowners, staging the work is safer. For example, complete drainage, waterproofing and roof repairs first, then delay cosmetic upgrades until the property condition is stable.
Step-by-Step: How to Use Equity for Renovations
-
Estimate your property value
Use recent sales as a guide, but expect your lender to use its own valuation. -
Check your current loan balance
This helps you estimate total equity. -
Calculate rough usable equity
Start with 80% of the property value minus the current loan balance. -
Model repayments
Use a mortgage calculator and test higher interest rates, not just the current rate. ASIC MoneySmart offers repayment and borrowing calculators for this purpose. -
Define the renovation scope
Separate must-fix defects from nice-to-have cosmetic upgrades. -
Book a building inspection
Check for visible defects, moisture, termites, roof issues, drainage and structural movement before locking in the budget. -
Get builder quotes
Ask for detailed inclusions and exclusions. -
Check approvals and contracts
Contact your council, certifier or state regulator before work starts. -
Speak with a lender or broker
Ask about borrowing capacity, fees, LVR, LMI, repayment changes and loan term impact. -
Keep contingency funds aside
Renovations can expose hidden defects once work begins. -
Stage works in priority order
Fix water, safety, pest and structure issues before high-end finishes.
Getting the Most Value from Your Home and Building Investment
Using home equity can be a practical way to fund renovations, but it should not start with the loan application.
It should start with the property.
Before borrowing against your home, make sure the renovation plan matches the condition of the building. Hidden moisture, drainage defects, roof problems, termite-conducive conditions or structural movement can change what should be done first.
Owner Inspections can assess visible building defects, moisture issues, termite-conducive conditions, structural movement and maintenance risks so homeowners can plan renovation spending with clearer priorities.
Inspect Before Finalising Your Renovation Budget
Owner Inspections can assess building and pest-related risks so you can plan repairs, upgrades and staged works with clearer priorities.
and Pest Inspection
Frequently Asked Questions
Can I use my home equity to renovate in Australia?
How do I calculate usable equity?
What is the difference between total equity and usable equity?
Is refinancing better than a home loan top-up?
Can I use redraw for renovations?
Is a line of credit good for renovations?
Will using equity increase my repayments?
Do I need LMI when using equity?
Can renovations increase property value?
What is overcapitalisation?
Should I get a building inspection before renovating?
Do I need council approval for renovations?
Can I use equity for a kitchen or bathroom renovation?
What happens if renovation costs blow out?
Is using equity better than a personal loan?
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