Buying property in Sydney is one of the most exciting milestones in life. However, here’s the catch: many buyers focus solely on the deposit and purchase price, completely overlooking the additional costs that come with it. From stamp duty to legal fees, those “little extras” can easily add up to tens of thousands of dollars. In this guide, MULLIGAN Buyers Agents break down the hidden costs of buying property in Sydney so you can budget smarter, negotiate better, and avoid nasty surprises.
Key Takeaways
- Buying property in Sydney involves hidden costs beyond the deposit and purchase price, which can reach 5–10% extra.
- Key hidden costs include stamp duty, legal fees, building inspections, Lenders Mortgage Insurance (LMI), and ongoing ownership costs.
- Buyers should budget an additional 10% of the property’s price to cover these hidden costs effectively.
- Engaging a buyer’s agent, like MULLIGAN Buyers Agents, can help navigate these costs and avoid financial pitfalls.
- Always ask crucial questions before purchasing to identify potential risks and negotiate better terms.
Why Buyers in Sydney Often Underestimate Costs
It’s no secret that Sydney is one of the most expensive property markets in the world. With median house prices soaring above $1.6 million in many suburbs (CoreLogic, 2025), it’s easy for buyers to become fixated on the purchase price. But here’s the thing: the deposit is just the beginning.
What many don’t realise is that additional costs can stack up to 5–10% of the property price. Imagine buying a $1.2 million home and needing an extra $60,000–$120,000 just to cover fees. Ouch.
Let’s unpack the hidden costs most buyers don’t see coming.
1. Stamp Duty – The Big One
Stamp duty is often the single biggest hidden cost. It’s a government tax on property transactions, and in Sydney, it can be eye-watering.
- Example: For a $1.2 million property, stamp duty can exceed $50,000 (unless you’re eligible for concessions as a first-home buyer).
- NSW is currently exploring changes to stamp duty, with some buyers opting for annual property tax instead, but for most, the upfront payment is unavoidable.
👉 Tip: Use the NSW Government’s stamp duty calculator before you start house hunting to avoid budget shock.
2. Legal and Conveyancing Fees
Every property purchase in Sydney requires a solicitor or licensed conveyancer. They handle contracts, title checks, and settlement.
- Cost range: $1,500–$3,500 depending on complexity.
- Hidden extras: Disbursements (searches, certificates, and registrations) can add hundreds more.
👉 Tip: Don’t always go for the cheapest conveyancer—you get what you pay for, and mistakes can be costly.
3. Building and Pest Inspections
This is one cost you should never skip. Older Sydney homes, particularly those in heritage suburbs or coastal areas, often hide structural issues, termite damage, or water leaks.
- Cost range: $400–$800 per inspection.
- Apartment buyers: A strata report is essential, as it reveals the building’s finances, upcoming repairs, and any existing disputes. Expect to pay between $250 and $400.
👉 Tip: Treat inspections as an insurance policy; it’s better to lose $600 on a bad property than $600,000 down the line.
Lenders Mortgage Insurance (LMI)
If your deposit is less than 20%, most banks will require LMI. This protects the lender (not you) if you default.
- Cost example: On a $1 million Sydney property with a 10% deposit, LMI can exceed $20,000.
- It’s often capitalised into your loan, but that means more interest over time.
👉 Tip: Consider a guarantor loan or government schemes (like the First Home Guarantee) to avoid LMI.
5. Loan Application & Bank Fees
Banks love their fees. Expect:
- Loan application fees: $300–$600
- Property valuation fees: $300–$700
- Ongoing account fees: $10–$20 per month
6. Strata Levies & Body Corporate Costs
Buying an apartment or townhouse in Sydney? Welcome to strata.
- Strata levies: Cover building insurance, maintenance, and shared facilities. Average $800–$1,000 per quarter, but luxury complexes in the Eastern Suburbs can exceed $3,000 per quarter.
- Special levies: These are the real sting unexpected bills for major works (roof repairs, cladding replacement, lift upgrades).
👉 Tip: Always get an independent strata report before buying. It’ll reveal whether big bills are around the corner.
7. Moving & Utility Costs
It may sound minor, but it all adds up:
- Removalists: $1,000–$3,000 depending on distance and volume.
- Connection fees: Electricity, internet, gas—$300–$600 combined.
- New furniture: Hard to resist when moving into your dream Sydney home.
8. Ongoing Ownership Costs
Once you’ve signed the dotted line, there’s still more:
- Council rates: $1,500–$2,500 per year.
- Water rates: $600–$800 per year.
- Insurance: Home insurance $1,200–$2,500 annually; landlord insurance (for investors) $1,000–$2,000.
How to Budget for Hidden Costs
Here’s a simple rule of thumb:
👉 Set aside at least 10% of the purchase price for additional costs.
So, if you’re targeting a $1 million property in Sydney, have at least $100,000 extra ready. That buffer will keep you safe from financial stress.
Why a Buyers Agent Helps You Avoid These Traps
This is where working with a professional pays off. At MULLIGAN Buyers Agents, we:
- Identify properties with fewer hidden risks.
- Negotiate terms that save buyers money.
- Connect you with trusted conveyancers, inspectors, and mortgage brokers who give honest, upfront quotes.
- Help you see the real cost of ownership, not just the sticker price.
By avoiding even one hidden cost or overpriced deal, a buyers agent can more than pay for themselves.
Frequently Asked Questions About Hidden Costs of Buying Property in Sydney
Can stamp duty be waived in Sydney?
Stamp duty exemptions or concessions apply mainly to first-home buyers, but eligibility depends on property value and government schemes. Most other buyers will need to budget for it. Primarily applies to first-home buyers, but eligibility depends on the property’s value and specific details.
Is LMI (Lenders Mortgage Insurance) refundable if I refinance?
Unfortunately, no. Once LMI is paid, it cannot be refunded even if you refinance or pay off your loan early.
What’s the single biggest hidden cost Sydney buyers face?
For most, stamp duty is the largest upfront hidden cost. However, ongoing strata fees and special levies can also become major unexpected expenses.
Buying a property in Sydney is exciting, but it’s also one of the biggest financial commitments you’ll ever make. Beyond the purchase price, hidden costs like stamp duty, inspections, strata fees, and loan charges can catch buyers off guard.
By planning ahead and understanding the true cost of ownership, you’ll be in a stronger position to budget smartly, negotiate better, and avoid financial stress.
At MULLIGAN Buyers Agents, we specialise in guiding Sydney buyers through every stage of the property journey, helping you uncover hidden costs, sidestep expensive mistakes, and secure the right property at the right price.
👉 Ready to buy with confidence? Get in touch with MULLIGAN Buyers Agents today, and let’s make your Sydney property purchase a smooth and successful one.
Book a Call With One of Our Experts
Paul Mulligan is the Principal Buyers Agent & Expert Negotiator at MULLIGAN Buyers Agents, Sydney. One of only two buyer’s agents in Australia to complete Negotiation Mastery at Harvard Business School, Paul combines advanced negotiation skills with over 30 years of market expertise to achieve outstanding results for property buyers. Passionate about helping clients avoid costly mistakes, he provides expert guidance throughout the buying process from search to settlement.
