Chapter 6Last reviewed 9 September 2026 3 min read

Upsizing without overreaching

Strategic advice on choosing a larger home that remains affordable in the long term.

Identifying your true needs versus wants

When upsizing, it is easy to be seduced by extra bedrooms, theatre rooms, or expansive gardens. However, every additional square metre adds to the purchase price, land transfer duty, and ongoing maintenance costs. Start by defining your 'must-haves' based on how your family actually lives. Perhaps you need a dedicated home office or a second living area for children, but a five-bedroom house might be overkill if two rooms remain empty. In Victoria, larger homes also attract higher council rates and utility bills. Be honest about how much space you will truly use over the next ten years. A well-designed smaller footprint often provides better lifestyle outcomes than a poorly designed larger one.

Consider the 'future-proofing' aspect of the home. Will it still suit your needs when your children become teenagers or if your parents need to move in? A flexible floor plan that can evolve with your family is often more valuable than raw square footage. Look for 'zones' that allow for both communal living and privacy. In the Victorian climate, also consider the orientation of the house. A large home with poor solar orientation will be expensive to heat in winter and cool in summer. Efficiency should be a priority when upsizing, as the cost of running a large, inefficient home can significantly impact your monthly disposable income.

Calculating long term affordability

Affordability is not just about whether the bank will lend you the money; it is about whether you can live comfortably while repaying the loan. Use a mortgage calculator to see how your repayments would change if interest rates rose by two or three percent. Upsizing often means a significant jump in debt, and you must ensure your lifestyle is not compromised. Factor in the cost of new furniture, higher insurance premiums, and potential renovations. In Victoria, property prices can be volatile, so ensure you are not buying at the absolute peak of your budget. Leaving a 'buffer' in your borrowing capacity provides peace of mind and financial resilience.

  • List your daily activities to determine space needs
  • Review the last four quarterly utility bills of the new home
  • Check council rate tiers for the specific suburb
  • Test your budget against a 3 percent interest rate rise
  • Assess the cost of maintaining a larger garden or pool

The Maintenance Trap

A bigger home means more gutters to clean, more walls to paint, and more floors to vacuum. If you do not enjoy home maintenance, factor in the cost of hiring help.

The trade-off between location and size

Often, the desire for more space requires a move further away from the city centre or established hubs. This involves a trade-off with commute times, proximity to schools, and access to amenities. Calculate the time and cost of commuting from a potential new suburb. If you are moving from an inner-Melbourne suburb to the outer fringe for a bigger backyard, consider the impact on your quality of life. Conversely, you might find that a slightly smaller home in a better location offers better long term capital growth. Research the infrastructure plans for any new area via the VicPlan website to ensure the suburb will continue to meet your needs as it develops.

The Commute Conundrum

A family moves from a small villa in Northcote to a large four-bedroom house in a new estate 40 kilometres away. They love the space, but the father finds his commute has doubled and the cost of petrol and tolls has increased by 400 dollars a month, straining their new, larger mortgage budget.

Think about the resale value of the home you are buying. While you might plan to stay for twenty years, life changes. A home that is 'too big' for its suburb or has a highly unusual layout might be harder to sell in the future. In Victoria, four-bedroom, two-bathroom homes with a double garage are generally the most liquid assets for families. If you are building or extensively renovating to upsize, avoid over-capitalising. Ensure the total value of the finished home does not exceed the ceiling price for the street. Your local estate agent can provide insights into what buyers in that specific area are looking for.

Finally, don't forget the 'hidden' lifestyle costs. A larger home often leads to more 'stuff'. You may find yourself spending more on appliances, decor, and cleaning supplies. Try to maintain a minimalist approach even with more space to keep your expenses in check. Before you buy, spend time in the new suburb at different times of the week. Does it have the community feel you want? Are the local parks and shops sufficient? Upsizing is a holistic change to your life, not just a change of address. Make sure the 'up' in upsizing applies to your happiness as much as your house size.

Upsizing Cost Comparison
Cost ItemSmall Home (Existing)Large Home (Target)
Council Rates1,500 dollars2,400 dollars
Heating/Cooling2,000 dollars3,800 dollars
Home Insurance1,200 dollars2,000 dollars
Annual Maintenance1,000 dollars3,000 dollars
This information is general in nature and does not take into account your personal financial situation. It is not financial, credit, tax, or legal advice. Please consult a licensed financial adviser, mortgage broker, or conveyancer or solicitor before making any decisions.
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Quick knowledge check

Pick one answer per question, then check your answers. Get 3 of 3 right to mark this chapter as read.

1What is 'over-capitalising'?
2Why is solar orientation important for a large home?
3Where can you check Victorian infrastructure and zoning plans?