If you are asking “how much is my house worth”, the honest answer is that there are four ways to find out, ranging from a free online ballpark to a bank-grade valuation, and the right one depends on whether you are selling, refinancing or just curious. None of them is a single magic number. A home is only ever worth what a willing buyer pays a willing seller on the day, so every method below is really an estimate dressed up with more or less confidence.
Here is how the four approaches compare, then how to use them without fooling yourself.
The four ways to estimate your home’s value
Think of these as a ladder from rough to precise. Each rung costs more time or money and, generally, buys you more accuracy.
- Online estimate tool. A fast, free ballpark generated by an automated model that crunches recent sales and council data. Handy for a five-second gut check, but often wide of the mark, especially for renovated, unusual or tightly held homes the model has never really seen.
- Recent comparable sales. Looking at what similar nearby homes actually sold for in the last few months. This is the best free guide you have, because it reflects real money changing hands rather than an algorithm’s guess.
- Real estate agent appraisal. A free, in-person opinion from a local agent who knows the street. Useful and well informed, with one catch worth remembering.
- Independent valuation. A paid report from a certified, qualified valuer. This is the figure banks rely on, and the most defensible number you can get.
Online estimates: fast, free and frequently wrong
Automated estimate tools are the property equivalent of a weather app. They are right often enough to be useful and wrong often enough to embarrass you. The model looks at your address, recent sales nearby, land size and the last recorded sale price, then spits out a range.
The trouble is what the model cannot see. It does not know you regutted the kitchen, added a deck or that the place backs onto a freeway. For a plain, recently sold home in a busy suburb, the estimate can be close. For anything unusual, treat the number as a starting point, not a destination. Most tools quietly tell you their confidence level, so read it.
Comparable sales: the best free guide there is
If you do one thing, do this. Comparable sales, or “comps”, are recent transactions for homes genuinely similar to yours in location, size, condition and style. They are the foundation every agent and valuer uses, so you may as well do the work yourself.
Aim for at least three to five sales from the past three to six months, within a kilometre or so, and as close to your home’s bedrooms, bathrooms, land size and condition as you can find. You can research recent sales and prices and build your own shortlist before anyone tries to sell you a number. Adjust up or down for obvious differences: a renovated bathroom, an extra car space, a smaller block. It is rough arithmetic, but it grounds you in reality.
A home is worth what a willing buyer pays a willing seller, on the day, in cash. Everything else is an educated guess.
It also helps to know where your suburb sits in the bigger picture. Checking the median house price across Australia and in your capital city gives you a sanity check, though medians hide a lot: your street can run well above or below the suburb figure.
Agent appraisals: free, friendly, sometimes optimistic
A real estate agent appraisal is a genuinely valuable opinion. A good local agent has stood in dozens of nearby living rooms and watched what buyers actually pay, so their read on your home is informed in a way no algorithm can match. Better still, it is free.
The catch is incentive. An agent who wants your listing has a quiet reason to quote a flattering figure, because a higher number can win the business even if the home later sells for less. This is sometimes called “buying the listing”. The fix is simple: get more than one appraisal, ideally three, and ask each agent to justify their number with specific comparable sales. If two agents say 950,000 and one says 1.1 million with no comps to back it, you have learned something about that third agent.
While you are talking to agents, it is worth understanding how real estate agent commission works so you can read their pitch clearly and factor the selling cost into your net result.
Independent valuations: the number banks trust
A formal valuation from a certified valuer is the most rigorous option. The valuer inspects the property, applies professional standards and produces a written report that lenders, courts and the tax office will accept. Expect to pay a few hundred dollars, depending on the property and location.
You usually pay for one when the stakes are high: a divorce settlement, a deceased estate, a legal dispute or your own peace of mind before a major decision. One thing to note for borrowers: when you apply for a home loan, the bank orders its own valuation and pays for it. You do not choose that valuer, and the bank’s figure can land below an agent’s appraisal, because a lender cares about what it could recover in a quick sale, not what you might fetch on a good day.
Which method to use, and when
Match the tool to the job.
| Your goal | Best approach |
|---|---|
| Idle curiosity | Online estimate, then comparable sales |
| Preparing to sell | Comparable sales plus two or three agent appraisals |
| Refinancing or a new loan | The bank orders and pays for its own valuation |
| Divorce, estate or dispute | Paid independent valuation from a certified valuer |
For most people thinking about selling, the winning combination is doing your own comparable sales homework first, then weighing it against two or three agent appraisals. The comps keep the agents honest, and the agents add local nuance the raw data misses. If you want to go deeper on the sale itself, our guide on how to sell a house walks through the full process.
The bottom line
There is no single true answer to “how much is my house worth”, only estimates of varying confidence. Start with comparable sales for a free, grounded figure, layer in two or three agent appraisals if you are selling, and pay for an independent valuation when the decision is big enough to warrant certainty. Remember that for a home loan the bank runs its own valuation regardless, and its number rules for borrowing purposes.
This is general information, not personal financial, tax or legal advice. Property figures move, so confirm anything you rely on (figures last checked June 2026) and check official sources such as your state valuer-general or a licensed valuer before acting on a number.