When Renting Extra Space Makes Financial Sense
Chloe Jones
Published on 6th November 2025

When Renting Extra Space Makes Financial Sense

Key Takeaways:

  • Avoid Upsizing Costs: Renting storage is far cheaper than moving to a larger home, which involves massive one-off costs like stamp duty, real estate agent fees, and higher ongoing utility bills .

  • A Flexible Business Tool: Self-storage acts as a low-cost, flexible warehouse for e-commerce inventory or tradespeople's tools, avoiding the risk and high overheads of a commercial lease .

  • Create New Income: By moving clutter from a spare room into a small storage unit, you can rent out the room to a flatmate, earning far more in rent than the unit costs.

  • Choose Wisely: Make the right financial choice by selecting the correct unit size and type (e.g., standard vs. climate-controlled) in a cost-effective location which can offer better value than a central city facility.


Let's be real, the great Australian dream has always been about the quarter-acre block. But for a growing number of us, the reality is a stylish but undeniably compact apartment in the city, a townhouse with a postage-stamp courtyard, or a family home where the kids' stuff seems to be in a constant state of multiplying. Our living spaces are getting tighter, while our lives and the things that come with them are expanding.

The immediate reaction might be, We need to move to a bigger place! But before you start scrolling through real estate listings and calculating the eye-watering costs of a larger mortgage or higher rent, it’s worth crunching the numbers on a far more flexible solution: renting extra storage space. Often dismissed as a temporary fix between houses, self-storage can be a powerful financial tool.

The True Cost of Upsizing Your Home

The urge to upsize is understandable, but the financial implications are massive. Moving to a larger property isn't just about the difference in rent or mortgage repayments. It’s a cascade of significant, one-off costs that can take years to recoup.

  • Stamp Duty: This is the big one. In most states, stamp duty on a property purchase can run into the tens of thousands of dollars. That’s a huge upfront cost just for a few extra square metres.

  • Real Estate Agent Fees: Selling your current place will typically cost you 2-3% of the sale price in agent commissions.

  • Removalist Costs: A full-house move with a professional company is easily several thousand dollars, more if you have bulky items or a long distance to travel.

  • Connection Fees: Don’t forget the nuisance costs of reconnecting your electricity, gas, internet, and paying a removalist for the fridge.

  • Higher Ongoing Costs: A bigger home means higher council rates, higher utility bills, and more space to furnish and maintain.

The Business Case: From Side Hustle to Scalable Enterprise

For entrepreneurs and small business owners, self-storage isn't an expense; it's an operational necessity that saves money and drives growth. Renting a commercial property or a retail shopfront is a major commitment with long leases and high overheads. For a fledgling business, that can be a dangerous anchor.

Using a storage unit as a warehouse or stockroom offers incredible flexibility. You can scale up or down as your business ebbs and flows without being locked into a punishing lease. It’s the perfect solution for:

  • E-commerce sellers holding inventory for their online store.

  • Tradespeople need a secure, accessible spot for tools and materials, freeing up their ute for the next job.

  • Artists and craftspeople who need space for materials and works-in-progress without turning their home into a studio.

  • Seasonal businesses that need to store stock during their off-peak periods.

The cost of a storage unit is a straightforward, tax-deductible business expense. Compare that to the stress and financial risk of committing to a commercial lease before you're ready, and the financial sense is clear.

Finding the Right Space for Your Needs

Not all storage is created equal. To make it financially smart, you need the right type of unit. A climate-controlled unit for a wine collection is a necessary expense; paying for it to store garden furniture is not. Location is also key. A facility just outside the city centre will often be cheaper than one in the CBD. For example, if you’re based in Western Sydney, looking for a self storage Lidcombe provider could offer the perfect balance of accessibility and value, saving you money compared to a more central location. Here’s a quick guide to choosing wisely:

Size it Right: Don't pay for space you don't need. Use online size guides and pack efficiently.

Security is Non-Negotiable: Ensure the facility has 24/7 surveillance, personalised access codes, and robust alarms. Your goods' security is part of the value.

Access Matters: Do you need 24/7 access, or are standard business hours sufficient? This can affect the price.

Think About Climate: For sensitive items like documents, electronics, or artwork, a climate-controlled unit is a wise investment, not a luxury.

Matching Your Stuff to the Right Storage

The exterior of a self-storage facility, showing three blue garage-style doors numbered 9, 8, and 7, with yellow bollards in front.

Item category

Recommended unit type

Why does it make financial sense?

Furniture, books, and general household items

Standard, drive-up access

Most affordable option for durable goods.

Art, electronics, and important documents

Climate-controlled

Protects the value of sensitive and high-value items.

Business inventory, tools

Ground-floor, easily accessible

Saves time and labour costs when accessing frequently.

Archives, seasonal decor

Smaller, upper-floor unit

Lowest cost for items you rarely need to access.

The Lifestyle Equation: Funding Your Passions

Sometimes, the best financial decision is the one that allows you to maintain a valuable asset or pursue a money-making hobby. Our passions often come with gear, and that gear needs a home.

The Adventurer: A caravan, jet skis, or a boat can provide priceless family memories. But storing these large items at home often isn't possible or safe, and paying for a marina or dedicated yard space is expensive. A secure, affordable storage unit protects your significant investment and keeps the dream alive without needing a house with a massive backyard.

The Collector: Whether it's vintage wine, comic books, or rare vinyl, a collection can be a passion project and a valuable asset. Proper storage in a climate-controlled unit preserves its condition and, therefore, its financial value. Letting a valuable collection degrade in a hot garage is like watching money evaporate.

The Sub-Letter: This is a clever hack for renters. If you have a spare room full of your own clutter, you can't rent it out. By moving that non-essential stuff into a storage unit, you free up the room for a flatmate. The rent you collect from your new housemate will almost certainly be far greater than the cost of the storage unit, putting you in a net positive financial position each month.

Let’s put some of these scenarios into a simple table to see how the numbers stack up over a year.

Annual Cost Comparison of Common Scenarios

Scenario

Cost of upsizing

Cost of storage solution

Financial outcome

Avoiding a house move

One-off costs of $40,000+ (stamp duty, fees, etc.)

~$3,000/yr for a large unit

Saves tens of thousands in upfront costs.

Storing a boat at home

$5,000/yr for marina berth

~$1,800/yr for a secure unit

Saves $3,200 per year.

Renting out a spare room

$0 (but the room is unusable)

~$1,200/yr for a small unit

Profitable. Earn ~$15k in rent, net ~$13.8k profit.

Renting extra space isn't about hoarding; it's about smart asset management. It’s the financial lever that allows you to avoid the colossal cost of moving, run a lean and agile business, protect your valuable hobbies, and even create a new income stream. By treating it as a strategic purchase rather than a last resort, you can unlock a world of financial flexibility. So, before you decide to stretch your budget for a bigger mortgage, do the maths. That small, monthly storage fee might just be the key to a much healthier bank balance.

About the author
Chloe Jones Personal Finance Writer
Chloe is a seasoned financial services professional with over 15 years of experience in banking, financial strategy, and risk management. She shares industry insights as a Financial Services Consultant and writer.
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