You’ve got a number in your head for the house. Your ex has a different one, and it happens to be the number that suits them. Maybe they’ve waved a real estate agent’s appraisal at you. Maybe they’ve just decided the place is “worth what we paid plus the reno”. Either way, the settlement has stalled on one line item, and every week it drags on is costing both of you money.

This is one of the most common sticking points in Australian property settlements, and it’s also one of the most fixable. There’s a well-worn process for it, and at the centre of that process sits an independent valuer acting as a property valuation expert witness — someone whose job is to give the court a defensible figure, not to barrack for whoever engaged them.

Below, we’ll walk through why the numbers end up so far apart, how property valuation for settlement purposes fits into the process, how the single expert system works under the family law rules, and what your options are if you still disagree with the report.

Summary

When separating couples can’t agree on what a property is worth, the disagreement usually isn’t dishonesty — it’s that the two figures were produced by different methods for different purposes. An agent’s appraisal is a marketing estimate. A sworn valuation is an evidence-grade assessment of market value at a specific date, prepared by a Certified Practising Valuer who has inspected the property and analysed comparable sales.

In family law proceedings, the Federal Circuit and Family Court of Australia (Family Law) Rules 2021 strongly favour one jointly instructed valuer — a single expert witness — rather than each side hiring their own. Both parties agree on the valuer, send a joint letter of instruction, and usually share the fee. That expert’s duty is owed to the court, above either party.

If the report comes back and you don’t like it, you’re not stuck, but you’re also not free to simply order another one and use it. The Rules set out a sequence: ask the valuer written questions, arrange a conference, test the evidence at hearing, and only as a last resort seek the court’s permission to bring in a second expert. That permission is difficult to obtain.

A few things worth holding onto:

Assets are generally valued at a date close to settlement or final hearing, not at the date you separated.
A valuation is a point-in-time opinion, and in a moving market a report more than about six months old will often need updating.
Features that most people never think about — an easement, a covenant, a right of way, a shared driveway, an unapproved structure — can move a figure materially, and they’re exactly the things an agent’s appraisal tends to gloss over.
Getting a proper valuation early is usually cheaper than arguing about a number nobody has properly established.

This article is general information, not legal advice. For advice about your own settlement, speak with a family lawyer.

What a Property Valuation Expert Witness Actually Does

A property valuation expert witness is a qualified valuer who prepares a written valuation report intended to be used as evidence — in negotiations, at mediation, or in court. In Australia that will normally be a Certified Practising Valuer (CPV) who’s a member of the Australian Property Institute, or someone holding equivalent registration in states that licence valuers.

The distinguishing feature isn’t the inspection or the spreadsheet. It’s the duty.

The duty runs to the court, not to whoever pays

When a valuer is engaged as an expert witness in family law proceedings, they’re bound by the Expert Witness Code of Conduct that sits with the Family Law Rules. In plain English, that means:

Their overriding obligation is to assist the court impartially on matters within their expertise.
They are not an advocate for the party who engaged them — and where they’re a jointly instructed single expert, both of you engaged them.
They must set out the facts, assumptions and reasoning behind their figure, so it can be tested.
If they change their view after receiving new information, they have to say so.

This is why “I’ll get my own valuer who’ll give me a better number” doesn’t work the way people imagine. A valuer who shaded figures to please a client would be risking their registration and their professional standing, and any competent cross-examination would expose the reasoning anyway.

A valuation is not an appraisal

This trips up more separating couples than anything else. The two documents look superficially similar and mean very different things.

	Real estate agent appraisal	Sworn valuation
Purpose	Winning the listing, guiding a campaign	Establishing market value as evidence
Prepared by	Licensed agent	Certified Practising Valuer
Usually costs	Free	A professional fee
Basis	Recent local sales, market feel, campaign strategy	Inspection, comparable sales analysis, title and planning checks, documented methodology
Liability	Effectively none	The valuer stands behind the figure and can be cross-examined
Accepted in court	Generally not, as an opinion of value	Yes, when properly prepared

An appraisal is often given as a range, and agents are commercially motivated to pitch the top of it. That’s not a criticism of agents — it’s just what the document is for. It was never designed to survive scrutiny in a property settlement, which is why a court-compliant property valuation may be required when the property’s value needs to be relied on as expert evidence.

Why the Two of You Have Such Different Numbers

Before assuming your ex is playing games, it’s worth understanding the honest reasons two figures diverge.

Different documents. One of you has an appraisal, the other has a valuation. See above.
Different dates. A figure from eighteen months ago in a market that’s moved isn’t comparable to a current one.
Different comparable sales. Two properties in the same street can be genuinely different — orientation, land size, condition, flood overlay, subdividable or not.
Emotional weight. The person who stayed in the home often values it higher. The person who left often wants the pool as large as possible or as small as possible depending on who’s keeping the house.
Renovation maths. People assume $80,000 spent on a kitchen adds $80,000 to value. Sometimes it adds less. Occasionally it adds more. It’s rarely one-for-one.
Encumbrances nobody mentioned. A sewer easement running under the backyard, a right of carriageway, a restrictive covenant limiting what can be built, an easement in gross for a utility — these can restrict the developable footprint and affect value. Most appraisals don’t examine the title. A valuer will.

Sorting out why the numbers differ often resolves the dispute without anyone escalating.

How the Single Expert System Works

The Family Law Rules strongly favour the use of a single expert witness where that is practicable and consistent with the interests of justice. The Rules push this way deliberately: duelling valuers cost both parties money, and leave a judge choosing between two competing reports rather than working from one.

The single expert witness

Usually it plays out like this:

One side proposes a panel of two or three valuers; the other side picks one, or the parties agree on a name.
A joint letter of instruction goes to the valuer, setting out the property, the purpose (family law property settlement), the valuation date, any assumptions, and who arranges access for the inspection.
The valuer inspects, researches and produces a written report addressed to the court.
Unless agreed otherwise or the court orders otherwise, the parties are equally liable for the valuer’s reasonable fees.
Both parties receive the report at the same time. No sneak previews.

If you can’t agree on who to appoint, the court can order that expert evidence on a question be given by a single expert witness, and can make orders about who that is.

Shadow and adversarial experts

A “shadow expert” is a second valuer engaged by one party to review or contradict the single expert’s report. Under the Family Law Rules, you can’t just file that report — you need the court’s permission to rely on evidence from another expert on the same question.

The threshold is high. Broadly, the court will want to see something like a substantial body of contrary professional opinion, knowledge the single expert didn’t have and needed, or another special reason. Being unhappy with the number is not a special reason. Courts have made clear that parties are expected to use the questioning and conferencing steps first, rather than reaching straight for a second valuer.

You can, of course, engage a valuer privately to advise you behind the scenes — to help your lawyer frame sensible questions, for instance. That’s a different thing from putting a competing report before the court.

What To Do Before This Becomes a Court Fight

Most valuation disagreements never need a judge. In practical order:

Compare like with like. Put both documents side by side. Are they both valuations? Same date? Same assumptions about the land?
Get one proper valuation. If neither of you has a sworn valuation, that’s the cheapest problem to solve. A single independent figure has a way of ending arguments that two appraisals never will.
Agree on the valuer together. A jointly chosen valuer is much harder for either of you to dismiss later.
Give the valuer everything. Contract of sale, title search, plans, building approvals, rates notice, details of works done and by whom, any lease if it’s tenanted. Missing information forces the valuer into assumptions, and assumptions create room for argument.
Don’t stage-manage the inspection. Presenting the property poorly to drag the number down, or hiding defects to push it up, tends to be obvious and does your credibility no favours.
Take it to mediation with the figure in hand. Family dispute resolution works far better when the pool is actually quantified.

If the Report Lands and You Still Disagree

You have options, and there’s an order to them. A property valuation expert witness report isn’t the final word, but it is the starting point, and the Rules expect you to engage with it properly.

Ask written questions. You can write to the single expert with questions aimed at clarifying the report. There are conditions and time limits — questions must genuinely seek clarification, be put once, not be oppressive, and a copy goes to the other party. The valuer can charge for answering.

Ask for a conference. The parties can confer with the single expert to clarify the report, within a short window after receiving it. This is often where genuine errors get corrected.

Point out factual mistakes. If the report says three bedrooms and there are four, or misses that the shed has approval, or uses a comparable sale that fell over, say so with evidence. Valuers correct genuine errors and issue supplementary reports.

Test it at hearing. The single expert can be cross-examined about their methodology and comparables.

Seek leave for another expert. Last resort, high bar, real cost.

If your objection is essentially “the figure is lower than I hoped”, none of these will help. If your objection is “the valuer didn’t know about the easement across the rear boundary”, the first three probably will.

When Is the Property Valued?

This surprises people. In Australian family law, the asset pool is generally assessed at a date close to settlement or final hearing — not the date of separation. The separation date matters for other things, including time limits, but the pool reflects what exists now.

The practical consequences:

If the market has risen since you separated, the higher figure is generally the one in play, and both of you share in that.
If it’s fallen, the same logic applies in reverse.
A long delay can mean an updated valuation is needed before final orders. In a moving market, a report more than about six months old is often refreshed.
Post-separation contributions — one party paying the mortgage alone, or funding a renovation — are usually dealt with as part of the contributions assessment rather than by freezing the value at separation.

Since 10 June 2025, the Family Law Amendment Act 2024 changes have applied, which codified the property settlement framework in the Family Law Act 1975 and made the economic effect of family violence an express consideration. The changes reinforce that the court identifies existing rights and interests in property — which keeps the focus on current values. How the framework applies to your circumstances is a question for your lawyer.

Situations Where a Proper Valuation Earns Its Fee

Some properties are straightforward. A three-bedroom brick veneer on a standard block in an established suburb with plenty of recent sales nearby is not hard to value, and the two figures usually land close.

Others aren’t:

Rural and lifestyle blocks — where comparable sales are thin on the ground and water access, carrying capacity or road frontage drives value.
Properties affected by an easement, covenant or right of way — a drainage easement through the middle of a block, or a covenant restricting a second dwelling, can change what the land can be used for and therefore what it’s worth.
Unapproved or partly approved works — a converted garage or a deck without certification can be a liability rather than an addition.
Development sites and subdividable land — where value depends on planning controls, not just the house standing on it.
A property with a granny flat or a tenanted secondary dwelling — income and approval status both matter.
Anything unusual — heritage listing, contamination, bushfire or flood overlays, unusual title arrangements.

In these cases the gap between “what an agent thinks it’d fetch” and “what it’s actually worth for settlement purposes” can be substantial, and it’s worth having a valuer who’s dealt with the specific complication before.

Common Misconceptions Worth Clearing Up

“I’ll just get three appraisals and average them.” Averaging three marketing estimates doesn’t produce a valuation. It produces an average of three marketing estimates.

“The council rates notice tells us what it’s worth.” Council valuations are prepared for rating purposes, often on a land value basis and on a cycle. They’re not market value for settlement.

“My valuer will give me a better number.” A valuer who does that is putting their registration on the line. And any competing report needs the court’s permission before you can rely on it.

“If I keep the house, I have to pay stamp duty.” Transfers between separating spouses or de facto partners are typically exempt from transfer duty where the transfer is made under a court order or a binding financial agreement — but the requirements differ between states and territories. Check with the relevant state revenue office or your lawyer before assuming.

“Splitting the assets will trigger a capital gains tax bill.” Where a transfer happens under a court order or binding financial agreement on relationship breakdown, CGT rollover relief generally applies, meaning the tax consequence transfers with the asset to the receiving party rather than being triggered on the transfer. That’s a real consideration when deciding who keeps what — an investment property with a large embedded gain isn’t worth the same, after tax, as cash of equal value. Get advice from your accountant.

“We agreed on a figure years ago, so that’s settled.” If proceedings are on foot and time has passed, expect the value to be revisited.

FAQs

Do we have to use the same valuer?

Not legally, but the Family Law Rules favour a single jointly instructed expert, and courts expect it. If you each obtain your own report, you’ll typically need the court’s permission before relying on a second one, and you’ll have paid twice.

How much does a family law valuation cost?

It depends on the property type, location and complexity — a standard suburban house is far less than a rural holding or a development site. Ask for a fixed quote up front, and clarify whether attendance at court is included, since that’s usually charged separately.

Can I refuse to let the valuer inspect the property if I’m living in it?

Obstructing access is a poor strategy. The inspection is usually dealt with in the letter of instruction or by court order, and refusing tends to result in orders being made anyway — plus an unhelpful impression.

Does the valuer talk to us about the settlement?

No. The valuer’s job is the value of the property. They don’t advise on how the pool should be divided, and they shouldn’t be receiving one-sided information from either party.

What if the house sells for more than the valuation?

A valuation is an opinion of market value at a date, based on evidence available at the time. Actual sale prices can land above or below it, particularly at auction. That doesn’t make the valuation wrong.

Can a valuation be done for a past date?

Yes. Retrospective valuations are common — for example, establishing what a property was worth at the start of the relationship or at the date of separation, which can matter for the contributions assessment.

Do we need a valuation if we agree on the value?

Not necessarily. If you genuinely agree and the figure is realistic, you can use the agreed number. Valuations are for when you can’t agree, or when someone needs to be satisfied the figure is defensible.

What if my ex is hiding something about the property?

Both parties owe a duty of disclosure. If you suspect approvals, leases or title issues are being withheld, raise it with your lawyer — the valuer can only work with what they’re given.

Conclusion

A stalled settlement over the house value is usually a document problem, not a character problem — an appraisal on one side, a real opinion of value on the other. One independent valuation, jointly instructed and properly informed, tends to end the argument faster and more cheaply than months of back-and-forth. If you disagree with the report, work through the questions and conference process before considering anything more.

Need a valuation you can rely on?

If you’re working through a property settlement and need an independent report — including situations involving easements, covenants or other title restrictions that affect value — Easement Valuations can talk you through what’s involved and what it’s likely to cost. No obligation, and we’re happy to explain the process before you commit to anything.

Easement Valuations — +61 438 080 786

My Ex Won’t Agree on the House Value: When a Property Valuation Expert Witness Steps In