Financing a Home Renovation: Personal Loan vs Using Equity

New kitchen, a bathroom overhaul, an extension. Renovations rarely fit neatly inside a weekend budget. Two of the most common ways to fund one are a personal loan or tapping into the equity you've already built in your home. They work very differently.

The short answer. A personal loan is faster, unsecured and usually dearer. Using your equity is usually cheaper but it is secured against your home and takes longer to set up. The right one depends on the size of the job, how fast you need the money, and how long you want to be paying for it.

The choice usually gets made backwards. People decide what they want done, find out what it costs, then take whichever finance is quickest to arrange. That's how a $30,000 kitchen ends up attached to a mortgage with twenty years left on it. The size of the job, the length of the debt and the security you're offering are all connected, so it's worth deciding them together.

Personal loan for renovations

A personal loan is a separate, unsecured (or sometimes secured) loan specifically for the renovation, with its own term and repayment schedule sitting apart from your mortgage.

The money usually arrives as a lump sum and you pay it back over a set term, commonly with a fixed rate and a fixed repayment. There's no valuation on your home and no changes to your mortgage, which is why it's the faster of the two options to arrange. Unsecured lending costs more than secured lending because the lender holds nothing if it goes wrong, and that price difference is the whole reason the equity option exists.

Where it makes sense:

• Smaller to mid-sized renovations where you don't want to touch your home loan at all
• You want a clear, fixed end date for the renovation debt, separate from your mortgage term
• You'd rather not extend the life of your mortgage by rolling more debt into it

Check two things in the contract before you sign. Whether extra repayments are allowed, and what it costs to pay the loan out early, since renovation debt is the kind people often clear ahead of schedule.

Using home equity

If you've built up equity in your property, you may be able to access it (through a redraw facility, a line of credit, or by refinancing to a larger loan) to fund the renovation using your home as security.

Where it makes sense:

• Larger renovations where the amount needed makes a personal loan's higher rate expensive by comparison
• You're confident the renovation will add value roughly in line with (or above) what you're borrowing
• You want the lowest possible rate, since equity-secured borrowing is typically cheaper than an unsecured personal loan

Usable equity isn't the same as equity. Equity is what the property is worth less what you owe. Usable equity is what a lender will release, which is the value multiplied by their maximum LVR, less the existing debt. On a property valued at $600,000 with $300,000 owing and a lender willing to go to 80%, the usable equity in that illustration is $180,000. The numbers are invented and round to make the arithmetic visible. Push past the lender's threshold, commonly 80%, and lenders mortgage insurance usually enters the picture, which is a one-off premium protecting the lender rather than you.

Redraw, line of credit or a full refinance?

Redraw is the simplest. If you've paid extra onto your loan, the lender may let you take some of it back, subject to the contract and sometimes to limits or fees. Nothing gets restructured. It only works if the money is already sitting there.

A line of credit or a separate loan split gives you a facility to draw on, which suits a job being paid in stages. A refinance to a larger loan resets the whole mortgage and is the bigger piece of work, but it's also the point where you can rate shop the entire debt rather than just the new part.

Whichever route, a valuation on your home is usually involved, and a valuation that lands lower than you expected takes the plan with it. Ask what the lender's valuation figure is before you commit to the scope of work.

When do you need a construction loan instead?

Cosmetic work generally doesn't need one. Structural work often does. If you're moving walls, extending, or doing anything requiring council approval and a licensed builder on a fixed price contract, many lenders will want a construction loan, where the funds are released in progress payments as each stage is completed rather than as one lump sum.

That structure comes with its own requirements: approved plans, a signed building contract, the builder's licence and insurance details, and a valuation done on an "as if complete" basis. Doing the work yourself as an owner builder makes lenders noticeably more cautious, so if that's the plan, raise it early rather than after the quote is signed.

The trade-off

A personal loan is quicker to arrange, doesn't touch your existing mortgage, but usually carries a higher rate. Using equity typically gets you a lower rate and can fund a much larger project, but extends your secured debt against your home and, if not managed carefully, can quietly extend your mortgage term by years.

There's a middle path worth knowing about. If you use equity, you can often ask for the renovation borrowing to sit in its own loan split with a shorter term, rather than being absorbed into the main mortgage. You keep the secured rate and you keep the end date. It takes a conversation with the lender rather than a different product.

An illustration of what the term does

The numbers here are invented, deliberately round and illustrative only. They aren't a rate or a repayment from any lender, and they ignore interest on purpose so the effect of the term is visible on its own.

Take a $50,000 renovation. Repaid over five years, that's a bit over $830 a month in principal alone. Added to a mortgage with twenty years left to run, it's a bit over $200 a month in principal. The second number is far easier to live with, which is exactly why people choose it, and it means you're paying interest on that kitchen for twenty years instead of five.

Neither is wrong. A lower monthly cost has real value if cash flow is tight. Just make the choice knowing what the longer term costs, rather than finding out when the loan is still running and the kitchen is being replaced again.

What a lender checks either way

The products differ. The assessment underneath them looks fairly similar.

• Your income, its type, and how long you've been earning it
• Your living expenses, assessed properly rather than taken as a round guess
• Existing debts, with credit card limits usually counted rather than balances
• Your credit file, including repayment history and recent enquiries
• For equity borrowing, the property's valuation and your resulting LVR
• The quote or building contract, and what the money is actually for
• For construction, the plans, the approvals and the builder's licence and insurance

One thing to expect: lenders assess your repayments at a rate above the one you'd actually pay, so the approval usually lands below what a repayment calculator suggests. The size of that buffer comes from regulatory guidance and lender policy and it changes over time, so ask what's being applied when you apply.

Where renovation budgets come unstuck

How much contingency is enough?

Enough that a surprise doesn't stop the job. Builders work with a contingency as standard practice, and the right size depends on the age of the house and how much of the work is hidden behind walls, under floors or in the roof. Older homes hide more. Borrowing exactly the quoted figure with nothing spare is the most common regret in this category, because the alternative when something is found is a second, more expensive application halfway through.

Do you need approvals before the lender will fund it?

For structural work, usually yes, and the lender will want to see them. Councils differ on what needs a development application and what can proceed as complying development. Strata approval is a separate step again if you're in a unit, and it has its own timeline. None of that is the lender's problem, but all of it becomes your problem if the finance is ready and the paperwork isn't.

Does the lender pay you or the builder?

On a personal loan or a redraw, you. On a construction loan, the lender generally pays the builder directly as each stage is signed off, after an inspection. That protects everyone, and it means your builder's payment schedule needs to match the lender's drawdown stages. Mismatched schedules are a common source of awkward phone calls.

Worth thinking through before either option

• Does the renovation add value? Kitchens and bathrooms tend to hold their return better than more personal or niche upgrades. Worth factoring in if resale value matters to you.
• What's the total cost, not just the rate? A lower rate over a longer term (rolled into your mortgage) can still cost more overall than a higher rate over a short, sharp personal loan term.
• Do you have a firm quote, or a rough estimate? Renovations have a habit of running over budget. Borrowing to the exact quoted amount with no buffer is a common regret.

Add one more to that list: how long you plan to stay. A renovation you'll enjoy for fifteen years and a renovation you're doing to sell next spring are different decisions, and they point at different loan terms even when the work is identical.

What to have ready

Both paths need the same core paperwork, and the equity path needs a bit more.

• A firm written quote, or the signed building contract if there is one
• Plans and any council or strata approvals for structural work
• The builder's licence number and insurance details
• Recent payslips, or two years of returns and financials if you're self employed
• Statements for your everyday accounts and your existing home loan
• Every debt with its limit, balance and repayment
• Your own credit report, so nothing in the assessment is a surprise
• Your best estimate of the contingency you want on top of the quote

Common questions

Can I renovate without touching my home loan?

Yes. An unsecured personal loan leaves the mortgage alone, settles quickly and does not need a valuation. It costs more in interest, which is the trade for the speed and the simplicity.

How much equity can I actually use?

Lenders generally look at your loan against the property's value, and going above 80 per cent usually brings lenders mortgage insurance into it. Your borrowing power still has to support the higher balance.

Does the bank pay me or the builder?

On a straight equity increase or redraw the money generally comes to you. On a construction loan it is usually paid to the builder in stages as the work is completed.

Do I need council approval before the lender will fund it?

For structural work, often yes, and a construction loan will ask for plans and a fixed price building contract. Cosmetic work usually does not need that level of paperwork.

What happens if the job goes over budget?

It happens often, which is why a contingency belongs in the budget from the start. Topping up a loan halfway through a renovation is slower and dearer than borrowing the right amount up front.

Compare City can run both structures against your actual numbers, so you can see the real total cost of each path before the tradies show up.

More on renovation loans, personal loans and home loans.