Upsizing From a Unit to a House in Brisbane Southside, QLD, Your Practical Guide
You've outgrown the unit. Maybe the family has grown, the home office is the dining table, or you've simply watched houses in the suburbs around you and decided it's time. Upsizing from a unit to a house in Brisbane Southside, QLD is one of the most common moves brokers help owners navigate, and it's also one where the timing and the loan structure matter far more than most people realise.
The good news is that unit owners in Brisbane Southside are often in a stronger position than they think. Strong unit price growth across the area means many owners have built real equity without trying. Whether you're in a two-bedroom unit in Annerley, a townhouse in Upper Mount Gravatt or a complex in Moorooka, that equity is the foundation of your next move, and how a lender reads it decides what you can afford.
Our team works with upsizers across Brisbane Southside, QLD every week, comparing options across 50+ lenders to match the right structure to your situation. The upsizing home loan side of it is where most of the difference is made, particularly when you're selling one property while buying another.
Key takeaways
- Equity in your unit can fund the deposit without saving from scratch.
- House medians in Brisbane Southside range from $830,000 to over $2,480,000.
- Selling first or buying first each carry different loan structures and risks.
Can unit owners in Brisbane Southside really afford a house?
Most can, though not always in the suburb they started in. CoreLogic data shows unit medians across Brisbane Southside ranging from around $722,000 in Macgregor to $890,000 in Sunnybank, with 12-month growth figures running between roughly 9% and 27% depending on the suburb. That growth has pushed many unit owners past the 20% equity mark, which is where the upsizing maths start to work.
Source: CoreLogic (via YIP, mid-2026).
How do lenders assess your equity when you upsize?
Your usable equity is the gap between what your unit is worth today and 80% of that value, minus whatever you still owe. Lenders use their own valuation, not your estimate or the last sale price you saw on the street, which is the first thing most upsizers don't expect.
On a unit worth $800,000 with a $350,000 loan remaining, 80% of the value is $640,000, meaning usable equity sits at roughly $290,000. That's an illustrative example on round numbers, but it shows why units that have grown even modestly can produce a meaningful deposit for the next purchase.
Lenders also re-run serviceability at the time of the new loan, not at what you were approved for years ago. They'll apply the APRA buffer of 3.0% on top of the actual rate, assess your living expenses against the Household Expenditure Measure, and count any credit card limits as fully drawn commitments.
What lenders are checking:
- › Usable equity: the gap between 80% of your unit's current value and what you owe.
- › Valuation: the lender orders their own, which can differ from agent appraisals.
- › Serviceability buffer: assessed at approximately 9% regardless of what the actual rate is.
- › Existing debt: your current home loan plus any card limits all count as ongoing commitments.
- › Income consistency: recent payslips, two years of returns if self-employed, and any variable component averaged.
Source: APRA.
We see a lot of upsizers who assume their equity is what they'd pocket on sale day. The lender's number is almost always lower, and it's the lender's number that determines what you can borrow for the next purchase. Getting that figure confirmed early is what stops a deal falling over at the wrong moment.
Gundeep Virk · Director, Evergreen Loan Solutions · Chat to Gundeep →
What does upsizing actually cost in Brisbane Southside, QLD?
House medians across Brisbane Southside span a wide range. CoreLogic data shows Rocklea sitting at $830,000 at the more accessible end, through to Coopers Plains at $1,260,000, Annerley at $1,400,000, and Robertson at $2,480,000 at the premium end. That range means the target suburb matters almost as much as the size of the loan.
Queensland transfer duty is the largest purchase cost beyond the loan itself. On an established home you're buying to move into, there is no first home concession available to an upsizer- that concession is for first purchases only. Full duty applies on an established home at these price points, and the Queensland Revenue Office calculator gives the exact figure for any purchase price.
The main costs to budget beyond the deposit:
- › Transfer duty: calculated on the purchase price; no first home concession for upsizers on established homes.
- › LMI: avoidable where usable equity covers a 20% deposit on the new purchase.
- › Conveyancing and legal: both the sale and the purchase carry their own costs.
- › Building and pest inspection: standard on house purchases; budgeted separately.
- › Moving and connection costs: often underestimated on a larger home.
Source: Queensland Revenue Office.
| Get in touch Need help upsizing to a house? We're a local team who understand how lenders actually assess your situation, not just your rate. We'll compare your options across 50+ lenders to find the right fit.
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Should you sell first or buy first?
This is the central decision in almost every upsizing move, and the right answer depends on your equity position, your risk tolerance, and what the market is doing in the suburbs you're targeting.
The options worth weighing:
- › Sell first: certainty on your budget · no bridging finance needed · potential gap between sale and purchase · risk of renting between moves
- › Buy first, then sell: no temporary rental needed · peak debt during the overlap · bridging finance required · end debt assessed on serviceability
- › Simultaneous settlement: cleanest outcome · requires both transactions to align · rarely achievable without flexibility on both sides
Where your equity is strong and the outgoing unit is already listed, selling first is usually the cleaner path. Where the market is moving quickly and waiting to sell risks missing the house you want, bridging finance is worth understanding properly before you rule it out.
When does upsizing not make sense right now?
Not every unit owner should upsize today, and it's worth being honest about the conditions where waiting is the better call. If your usable equity sits below 20% of the target purchase price, you'll be paying LMI on a much larger loan than you did on the unit, which can cost tens of thousands of dollars on a $1,300,000 purchase.
Income has to carry the new loan, not just the deposit. A household income that comfortably covered a $500,000 unit loan may not cover a $1,200,000 house loan at the assessment rate without some restructuring of existing debts. If the numbers only work by clearing a credit card or selling a car first, that's worth knowing before you sign a contract rather than after.
The suburbs where houses sit closest to unit price territory, places like Rocklea at a $830,000 house median, can look appealing on price, but Rocklea sits in a flood-risk area and lenders treat that differently. Property character matters as much as the number, and a broker can flag which lenders are comfortable with which postcodes before you make an offer.
In our experience, upsizers who wait until their equity is genuinely solid make a much cleaner move. The ones who stretch into a house too early often end up with less flexibility than they had in the unit. There's no shame in a 12-month plan; the market will still be there.
Gundeep Virk · Director, Evergreen Loan Solutions · Chat to Gundeep →
How to upsize from a unit to a house in Brisbane Southside, QLD, step by step
Step 1: Talk to us
We start by working out your usable equity, what the new loan would look like under current serviceability rules, and which structure suits your timeline, whether that's selling first, buying first, or bridging.
Step 2: Get your numbers confirmed
We order a desktop or formal valuation on your unit, confirm the usable equity figure, and run your serviceability across lenders to find the ones whose policy suits your income and debt profile.
Step 3: Match the structure to your situation
We compare the right loan structure across our 50+ lender panel, whether that's a standard purchase loan, a bridging facility, or a simultaneous settlement arrangement, and prepare and submit the application.
Step 4: Manage approval through to settlement
We stay across the approval timeline, coordinate with your conveyancer on both the sale and purchase, and make sure both transactions land cleanly without a gap that leaves you scrambling.
What goes wrong when people upsize from a unit?
Where upsizers lose ground:
- › Relying on an agent's appraisal: agents estimate sale price, not lendable equity. A bank valuation is often 5% to 10% lower, which can change how much deposit you're working with.
- › Applying before the sale is under contract: a bridging loan assessed on an unsold property carries higher peak debt and tighter lender conditions. A signed contract changes the risk profile significantly.
- › Underestimating the duty cost: full Queensland transfer duty on a $1,300,000 purchase is a material expense. Not budgeting for it properly can leave a cash shortfall at settlement.
- › Choosing the wrong lender for the suburb: some lenders restrict LVR in high-density postcodes or apply additional conditions on flood-affected land. Applying to the wrong one delays approval and adds an enquiry to your credit file.
Frequently Asked Questions
Can I use the equity in my unit as the deposit on a house?
Yes, usable equity, the gap between 80% of your unit's current value and what you owe, can be drawn on as a deposit for the next purchase. The lender uses their own valuation to confirm the figure, not an agent's estimate.
Do I have to sell my unit before buying a house in Brisbane Southside?
No. Bridging finance lets you buy before you sell, with serviceability assessed on the end debt once the unit is sold. It suits buyers with strong equity and a clear sale timeline, though it's not the right fit for everyone.
Will I pay LMI when I upsize?
Not if your usable equity, plus any cash savings, covers a 20% deposit on the house purchase. Where the combined deposit sits below that, LMI is charged on the gap and can run to tens of thousands on a large loan.
What house medians should I budget for in Brisbane Southside?
CoreLogic data shows house medians ranging from $830,000 in Rocklea to $1,550,000 in Holland Park and over $2,480,000 in Robertson. The target suburb shapes the deposit requirement as much as anything else.
Is it worth upsizing if my unit has only grown a little?
It depends on whether your usable equity is enough to avoid LMI and fund the duty costs. If equity is thin, a 12-month plan to build it further is often the better financial move before committing to a larger loan.
Should I use a mortgage broker or go direct to a bank when upsizing?
A mortgage broker, every time. Upsizing involves two transactions often running simultaneously, and lender policy on bridging loans, valuation policies, and flood-affected postcodes varies widely across the panel. A broker canvasses the market and finds the lender whose policy suits your specific situation, not just the one you already bank with.
Your Next Steps
Upsizing from a unit to a house is a bigger financial step than the first purchase in many ways. The equity is already there for many Brisbane Southside owners, but turning that equity into a clean, low-risk move to a house depends on the right loan structure and the right lender for the suburb you're targeting.
Ready to find out which lenders will work best for your upsizing move? Contact the Evergreen Loan Solutions team or call 0421 152 859. We'll canvas our 50+ lender panel and find the most suitable options for your circumstances.
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External Resources
Evergreen Loan Solutions, Eight Mile Plains and Brisbane Southside. This is general information only, this article does not constitute financial advice. Please consider your own circumstances and seek professional advice before making any financial decisions.
