How to Upsize Your Property in WA Selling First Buying First or Using Bridging Finance
Upsizing sounds simple until the timing starts to matter. You find a bigger home in the right school catchment, near family, or with enough space for work and kids. Then the hard question lands: do you sell your current property first, buy first, use bridging finance, or keep the old home as an investment?
For Perth homeowners, this can feel especially tricky when suitable listings are limited and good homes move quickly. The right move depends on your income, equity, savings, risk tolerance, and how much flexibility you have with settlement dates.
This guide explains the main ways to upsize, how each option works, and what to think through before making an offer.
Start with borrowing power before choosing the order
Before deciding whether to sell or buy first, start with the finance position. This gives you a clear ceiling before emotions get involved.
A mortgage broker will usually look at:
Your current home loan balance
The likely sale price of your existing property
How much equity you can use
Your savings and cash buffer
Household income and expenses
Other debts, including car loans and credit cards
Whether you can service one loan, two loans, or a short-term bridging loan
Transfer duty, agent costs, settlement costs, moving costs, and possible repairs
Upsizing usually means a larger loan, higher repayments, and higher purchase costs. In Western Australia, buyers also need to factor in stamp duty, which can be a significant upfront cost.
A pre-approval can help, but it is not a final loan approval. The lender still needs to assess the property, valuation, contract terms, and any conditions attached to the deal.
The safest strategy is not always the cheapest, and the cheapest strategy is not always the easiest to live with.
That is why the order matters.
Option one is selling first
Selling first means you list and sell your current property before buying the next one. This is often the most financially conservative path.
Once your property sells, you know your sale price, your remaining equity, and your budget for the next home. That makes the next purchase cleaner from a finance point of view.
The main benefits are certainty and control.
You know how much money you have to work with. You may also avoid needing bridging finance or carrying two loans at once. For many households, this makes loan approval simpler.
Selling first can also place you in a stronger position when buying. A seller may prefer an offer from someone who has already sold, compared with a buyer who still needs to list their property.
The trade-off is lifestyle disruption.
If you sell before you find the right place, you may need to rent for a period, move twice, store furniture, or accept a settlement timeline that does not line up neatly. In a competitive market, there is also the risk that prices rise, or suitable properties become harder to find whilst you are waiting.
Selling first can suit homeowners who:
Need certainty about their budget
Have limited capacity to hold two loans
Want to reduce finance risk
Are comfortable renting short-term if needed
Have a property that may take longer to sell
If choosing this path, try to negotiate a longer settlement on your sale. This gives more time to find the next property and line up both settlements.
Option two is buying first
Buying first means you make an offer on the new home before selling your existing property. This can work well if the right property appears and you do not want to miss it.
It can also make the move easier. You may have time to renovate, paint, move gradually, or prepare the old home for sale after you have moved out.
The challenge is finance.
Unless you can afford both properties, the lender needs to understand how the current home loan and the new purchase will be managed. Some buyers have enough income and equity to hold both loans, at least for a short time. Others need bridging finance or a contract condition that protects them if the sale does not happen in time.
Buying first may suit homeowners who:
Have strong income and equity
Are buying in a market where suitable homes are rare
Can manage short-term repayment pressure
Have a property that is likely to sell quickly
Want to avoid temporary accommodation
The risk is clear. If your current home does not sell for the expected price or within the expected timeframe, you may be under pressure. That pressure can lead to rushed decisions, a lower sale price, or stress around settlement.
Before buying first, get clear advice on the worst-case numbers. Ask what happens if the sale takes longer, the valuation comes in lower, or the buyer of your property requests an extended settlement.
Option three is making an offer subject to sale
A subject to sale offer means you agree to buy a property, but the purchase depends on selling your existing property. This condition gives you protection if your sale does not happen.
In simple terms, the contract says the purchase only proceeds if your current property sells within an agreed timeframe and on agreed terms.
This can be useful when you want to secure the next home but cannot safely commit until your current property sells.
The downside is that sellers may see a subject to sale offer as less attractive. If they have another buyer with finance ready and no sale condition, they may choose the cleaner offer.
In WA, the exact contract wording matters. A settlement agent or conveyancer should review the terms so you understand your rights, dates, and obligations.
A subject to sale condition may work best when:
The seller is not in a hurry
Your current home is market ready
Your current property is in a desirable location
The timeframe is realistic
Your finance is otherwise well prepared
There may also be clauses that allow the seller to keep marketing the property. If another acceptable offer comes in, you may need to remove your sale condition within a set period or step away. This is sometimes called a kick-out style clause, though the wording can vary.
From a finance view, lenders will still want to see how the sale proceeds are being used and whether the purchase remains affordable.
Option four is using bridging finance
Bridging finance is a short-term loan structure that helps you buy the new home before selling the current one. It bridges the gap between the purchase and sale.
This can be useful when you have found the right property but your existing home has not sold yet.
A lender will usually look at the combined debt during the bridging period. This may include:
Your current home loan
The new purchase loan
Purchase costs
Expected net sale proceeds from your current property
Interest during the bridging period
Some bridging loans allow interest to be added to the loan for a period, rather than paid monthly. That may help with cash flow, but it can also increase the debt if the sale takes longer than expected.
The key figure is the expected end debt after your existing property sells. This is the loan you will keep once the bridging period ends.
Bridging finance can be helpful, but it is not suitable for everyone. The lender must be comfortable with the property values, your exit plan, and your ability to manage the loan. Valuations matter. Timelines matter. Sale price assumptions matter.
Here is a simple comparison.
Selling first
You know your budget and it reduces finance risk, but you may need temporary accommodation.
Subject to sale
You get contract protection, but some sellers may prefer cleaner offers.
Buying first
You secure the next home sooner, but it may carry more risk if the sale is delayed.
Bridging finance
You can buy before selling, but costs and timing need careful planning.
For many clients, bridging finance is less about chasing convenience and more about avoiding a missed opportunity. The question is whether the cost and risk are worth it for that specific property.
Option five is keeping the current home as an investment
Some homeowners upsize by buying the next home and keeping the existing property as a rental. This can be a strong long-term strategy if the numbers work.
The appeal is clear. The old home may provide rental income, future capital growth, and a second asset. It can also avoid selling costs and remove the pressure of lining up two settlements.
The finance test can be harder.
The lender will assess whether you can afford the new home loan while keeping the existing debt. They may include some of the expected rental income, but they will also factor in costs such as property management, insurance, rates, maintenance, and vacancy risk.
Tax also matters. Interest deductibility, capital gains tax, land tax, depreciation, and ownership structure can all affect the result. A mortgage broker can help with lending strategy, but a qualified accountant should guide the tax side before you make a final call.
Keeping the existing property may suit homeowners who:
Have strong equity
Can service both loans
Have a property with good rental demand
Want to build a property portfolio
Have an emergency buffer for repairs and vacancy
It may not suit households that need sale proceeds for the deposit, transfer duty, or to keep repayments comfortable.
This option is often overlooked, but it is worth testing before selling. Sometimes the numbers show it is realistic. Sometimes they show that selling is the cleaner path. Either answer is useful before you commit.
Compare the real costs, not just the purchase price
Upsizing decisions often focus on the new home price. That is only one part of the calculation.
A realistic budget should include:
Deposit or equity contribution
Stamp duty in the relevant state
Settlement and conveyancing costs
Bank fees and valuation costs
Lenders mortgage insurance if it applies
Real estate agent fees on the sale
Marketing costs for the sale
Removalist and storage costs
Repairs, cleaning, staging, or minor improvements
Overlap costs if you own both properties for a period
Council rates, water rates, insurance, and strata costs if relevant
The timing of these costs matters as much as the amount. Some are paid at settlement. Some are paid before sale proceeds arrive. Some need to be covered from savings.
That is why cash flow planning is so important. A household may have plenty of equity on paper but still run short of available cash at the wrong time.
A broker can map the order of events and show where the pressure points sit.
How a mortgage broker helps with an upsize
Upsizing is not just a loan application. It is a sequence of decisions that need to fit together.
A mortgage broker can compare lender options and help structure the move around your goals. For example, the right path may involve selling first, applying for a new loan after settlement, using bridging finance, or restructuring the existing loan so the old property can become an investment.
A broker can also help you understand:
How much you may be able to borrow
Whether a lender will accept your income type
How your existing property debt affects serviceability
Whether bridging finance is available for your situation
How much equity you can access
What documents to prepare before making an offer
Which conditions to discuss with your real estate agent or settlement agent
As Perth mortgage brokers, we mainly help clients across WA but can also assist borrowers Australia wide. The lending principles are similar, but state-based costs and contract practices can differ, so local context still matters.
This is general information only and does not take into account your personal financial situation. Speak with a mortgage broker, settlement agent, and accountant before making decisions.
A simple way to choose your path
If you are unsure which option fits, start by asking four questions.
How much certainty do you need?
If certainty matters most, selling first may be the strongest option.
How rare is the next property?
If the right home is hard to find, buying first or using bridging finance may be worth exploring.
Can you handle repayment pressure?
If holding two loans would cause stress, avoid relying on best-case sale timing.
Could the current home work as an investment?
If the property has rental appeal and the numbers stack up, keeping it may be a valuable option.
The right strategy should feel clear on paper before it feels exciting in person. If the numbers only work when everything goes perfectly, the plan may be too tight.
The best upsize is planned before the offer
Upsizing can open the door to more space, a better location, and a home that suits the next stage of life. The finance path you choose can shape the whole experience.
Selling first gives certainty. Buying first gives flexibility. A subject to sale offer gives protection, if the seller accepts it. Bridging finance can help secure the next home before your sale settles. Keeping the existing property can turn an upsize into a long-term investment move.
Before making an offer, get the numbers checked, understand your risks, and plan the order of events. A clear finance strategy can make the difference between a stressful move and a confident one.
Comments