Commercial property valuation: how it’s really done (2026)

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Here’s the question almost every commercial property owner lands on eventually:

What is my property actually worth — and how on earth does anyone work that out?

With a house, the process feels fairly familiar. Look at what similar homes nearby have sold for, allow for the extra bedroom or better renovation, and you’ve got a rough idea.

Commercial property is different.

For a leased investment, the income and the security of the lease often lead the valuation. For an owner-occupied, vacant or development property, comparable sales, land value and future use may matter just as much.

So no, there isn’t one magic commercial property valuation formula you can feed a few numbers into and treat as gospel.

There is, however, a clear set of methods valuers use. Once you understand the logic behind them, the whole thing stops feeling quite so much like a dark art.

This guide explains how commercial property valuation works in Australia, including:

the main valuation methods
a worked cap-rate example
the difference between passing rent and market rent
what lenders and buyers are really looking at
how to get a realistic ballpark yourself
what you may be able to improve before selling

It’s written mainly for owners of smaller office, retail and industrial properties. Large developments, hotels and highly specialised assets usually need a more tailored approach.

First, which kind of “value” do you need?

Before touching a formula, it helps to clear up something that causes a lot of confusion.

People use the word valuation to describe three quite different things.

A formal valuation

A formal valuation is a written report prepared by a qualified, independent valuer, such as a Certified Practising Valuer (CPV) accredited by the Australian Property Institute.

This is generally the kind of report needed when the figure has to carry real weight, including for:

finance or refinancing
deceased estates
partnership or relationship separations
disputes
tax or accounting purposes
compulsory acquisition or other legal matters

The valuer inspects the property, analyses the lease and financial information, considers relevant sales and market evidence, and explains how they arrived at their conclusion.

It’s far more than running a quick formula.

An agent appraisal

A commercial agent’s appraisal is an estimate of what the property may sell for in the current market.

It’s usually free and can be useful, particularly when it comes from an agent who knows the local commercial market well.

But it isn’t an independent, finance-grade valuation. An agent who would like to win your listing also has a gentle reason to give you an encouraging number.

That doesn’t make the appraisal useless. It just means you should treat it as one piece of evidence rather than the final word.

Your own estimate

This is the back-of-the-envelope number you work out using the same basic relationships a valuer considers.

It won’t replace a formal valuation. It can, however, help you:

understand roughly where you stand
question an appraisal that doesn’t make sense
decide whether selling is realistic
recognise which parts of the property are helping or hurting its value
avoid choosing an asking price based entirely on wishful thinking

And honestly, that last one matters.

A valuation isn’t a promise of the sale price

One more thing before we get into the methods: a valuation is an opinion of value at a particular date, based on the available evidence and a set of reasonable assumptions.

It isn’t a guarantee that a buyer will pay that exact amount.

The final sale price can be affected by the way the property is marketed, how many buyers are competing, whether finance is available, how urgently either side needs to move and what comes out during due diligence.

A strong valuation gives you a well-supported starting point.

The market still gets the final vote.

Which valuation approach applies to your property?

The right approach depends heavily on what you’re selling and who is likely to buy it.

A leased investment property

For a leased shop, office or warehouse being sold to an investor, the income approach is often central.

The buyer is purchasing an income stream, so they’ll care about:

the net rent
the tenant
how long is left on the lease
rent reviews
outgoings
vacancy risk
how dependable the future income looks

An owner-occupied or vacant property

A vacant office, workshop or warehouse may be more attractive to a business wanting premises of its own.

In that case, recent sales of similar vacant or owner-occupied properties may matter more than the property’s current income—which may be zero.

A development or land-rich property

Sometimes the current building isn’t the most valuable part of the property at all.

An older warehouse earning modest rent may sit on land with subdivision, redevelopment or a more valuable permitted use. A buyer may therefore assess the site based on what it could become, rather than simply capitalising the existing rent.

This is known as the property’s highest and best use: the use that creates the greatest value while still being physically possible, legally allowed and financially feasible.

That’s why the right method comes before the maths.

Method 1: The capitalisation or income approach

For many leased commercial investment properties, this is the main event.

The idea underneath it is fairly simple: the property is producing income, and an investor will pay a price that gives them an acceptable return for the risk they’re taking.

You need two main ingredients.

1. Net operating income

Net operating income, often shortened to NOI, is the annual property income attributable to the owner after allowing for the normal property expenses the owner has to pay.

Depending on the lease, those expenses may include things such as:

council rates
water charges
insurance
land tax
management costs
routine repairs and maintenance

NOI is normally considered before the owner’s loan interest, depreciation, income tax and major capital expenditure.

The lease matters here.

Under a net lease, the tenant may pay or reimburse many of the property outgoings on top of the rent. Under a gross lease, the tenant pays an all-inclusive rent and the owner pays the expenses from that amount.

So don’t simply grab the annual rent from the lease and assume that’s your net income.

You need to work out what actually remains with the owner.

2. The capitalisation rate

The capitalisation rate, or cap rate, is the return buyers are accepting for comparable investments.

It’s expressed as a percentage.

A well-located property with a secure tenant and a long lease may sell on a lower cap rate because buyers see the income as relatively dependable.

A property with a short lease, weak tenant or significant uncertainty may need to offer buyers a higher return to compensate for the risk.

The basic formula is:

Value = Net operating income ÷ capitalisation rate

The slightly counter-intuitive part is this:

A lower cap rate produces a higher value.

Lower perceived risk means buyers may accept a smaller return. Higher perceived risk means they generally want a larger one.

A worked commercial property valuation example

Let’s say you own a small retail property.

After allowing for the property expenses you’re responsible for, it produces $60,000 a year in net operating income.

For this example, we’ll assume:

the current rent is broadly in line with market rent
there are no unusual incentives or arrears
the tenant is paying normally
comparable properties have recently sold at around a 6.25% cap rate

The calculation is:

$60,000 ÷ 0.0625 = $960,000

That gives you an indicative value of around $960,000.

Now look at what happens when the market sees the risk differently.

Net operating income	Cap rate	Indicative value
$60,000	5.5%	$1,090,909
$60,000	6.25%	$960,000
$60,000	7.5%	$800,000

Same property. Same current income.

Almost a $291,000 difference between the highest and lowest figures, driven by the return buyers require.

That’s why the lease, tenant and perceived risk matter so much in commercial property.

The rent in the lease isn’t always the valuation rent

This is where a quick DIY calculation can come unstuck.

A valuer considers both the rent currently being paid—often called the passing rent or contract rent—and the property’s market rent.

They aren’t always the same.

The property is leased below market rent

Imagine the tenant signed a long lease several years ago and is now paying well below what the space would fetch today.

The property may have good long-term potential, but the owner can’t necessarily access that higher market rent straight away. The existing lease may hold the income down for several more years.

A buyer will take that into account.

The property is leased above market rent

The reverse can also happen.

A tenant may be paying more than the property could reasonably achieve if it were leased today. That higher income looks good on paper, but a buyer will ask whether it will continue after the current lease ends.

Simply capitalising an above-market rent forever could overstate the value.

Incentives and other adjustments

A valuer may also need to allow for:

rent-free periods
fit-out contributions
rental arrears
unusual outgoings arrangements
upcoming vacancies
expected leasing costs
required capital works
rent reviews that are well above or below market expectations

The formula is simple.

Choosing the right income to put into it is not.

Method 2: Direct comparison with recent sales

The direct comparison method will feel more familiar if you’ve ever estimated the value of a home.

You look at what genuinely similar commercial properties have recently sold for and adjust for the differences.

For commercial property, those sales are often compared using a common measure such as:

sale price per square metre of building area
sale price per square metre of land
yield or cap rate
price per car space, room or unit for certain property types

The more similar the properties, the more useful the evidence.

A small strata office in a regional centre isn’t a good comparison for a freestanding metropolitan office building simply because both happen to contain desks.

Useful comparables should be reasonably similar in:

location
property type
size
quality and condition
zoning
parking and access
lease status
tenant and lease risk
likely buyer group
date of sale

A valuer may use the income approach and direct comparison together.

If both methods point to roughly the same range, that adds confidence. If they produce wildly different answers, the valuer investigates why rather than simply splitting the difference.

Other commercial property valuation methods

Two other approaches are commonly used where the property or income is more complex.

The cost or summation approach

This method considers the value of the land, adds the current cost of replacing the improvements, then allows for depreciation, age and obsolescence.

It can be useful for specialised properties where there aren’t many comparable sales or where the property’s income doesn’t tell the whole story.

Think purpose-built facilities rather than a standard little warehouse that changes hands regularly.

Discounted cash flow

A discounted cash flow, or DCF, analysis projects the property’s future income and expenses over several years and converts those future cash flows into today’s value.

It’s often used for larger or more complicated investments, including properties with:

multiple tenants
staggered lease expiries
major rent reviews
known capital expenditure
development stages
changing vacancy assumptions

For a straightforward single-tenant property, it may be more analysis than you need. For a large multi-tenanted asset, a one-year income snapshot may be nowhere near enough.

What actually moves a commercial property’s value?

Two buildings can look almost identical and still sell for very different amounts.

Here’s what may be driving the gap.

Net income

For an investment property, sustainable net income is the engine of the valuation.

More dependable income will generally support a higher value. But sustainable is the important word. A temporarily inflated rent or a tenant in serious difficulty won’t necessarily be treated as dependable.

The lease term

A longer lease can give an investor more certainty.

Valuers and buyers may also look at WALE, or weighted average lease expiry, particularly for multi-tenanted properties. This measures the average time remaining across the leases, weighted according to the income each tenant contributes.

A longer lease isn’t automatically perfect, though. The rent, review terms, tenant obligations and relationship to market rent still matter.

Tenant strength

Buyers care about the likelihood of the rent continuing to arrive.

A tenant with a strong trading history, clean payment record and demonstrated commitment to the premises may make the income look more secure than an untested or struggling tenant.

That doesn’t mean only household-name tenants have value.

It means the evidence around the income matters.

Rent-review terms

Fixed increases or clearly defined review mechanisms can make future income easier to understand.

Vague, missing or unusual review terms create more uncertainty. And in commercial property, uncertainty usually finds its way into the price.

Vacancy

A vacant property isn’t necessarily a bad property.

It may suit an owner-occupier perfectly.

But if it’s being sold as an investment, the valuer or buyer may need to allow for:

time without rent
leasing fees
incentives
fit-out contributions
uncertainty around achievable rent
the risk that finding a tenant takes longer than expected

Location, access and parking

The value drivers vary by property.

A retail property may depend heavily on exposure, passing traffic and customer access. An industrial property may be more affected by truck access, clearance height, loading facilities and proximity to major roads.

Parking can be a minor detail in one market and a deal-breaker in another.

Zoning and future use

Zoning determines what the property can legally be used for and may affect its redevelopment potential.

Owners sometimes focus entirely on the building in front of them and miss the value—or limitation—sitting underneath it.

Building condition and compliance

Buyers and valuers consider more than whether the property looks tidy.

They may also look at:

structural condition
roof and drainage
electrical and essential services
air-conditioning systems
accessibility
fire safety
environmental concerns
known compliance issues
major expenditure likely to be required soon

Fresh paint may help the property present well.

It won’t make an ageing roof disappear.

The wider market

Interest rates, access to finance, investor confidence, vacancy rates, construction costs and the supply of competing properties can all affect value.

This is why there’s no universally “good” cap rate.

The relevant rate is the one supported by recent sales of genuinely comparable properties in the same market, price bracket and risk category.

The bit owners often miss: the bank is in the room

Commercial owners sometimes think about value the way they’d think about their own home.

Good building. Well maintained. Nice presentation. Therefore, it should command a premium.

Only that isn’t always how an investment buyer—or their lender—sees it.

Where a buyer needs finance, the lender’s valuation can limit how much they’re able to borrow. The lender will look closely at the property, the market and the security of the income.

A short lease, uncertain tenant, unclear outgoings or rent that appears unsustainable may all affect the lender’s view.

That creates a fairly simple chain:

More uncertainty around the property or income → a more cautious valuation or lending decision → fewer buyers able to borrow enough → greater pressure on the price

The lender doesn’t set the sale price on its own.

But it can set a ceiling on what a financed buyer is able to pay.

What our team sees

Our team regularly speaks with owners who are focused on the physical building while buyers are focused on the income.

As PropertyNow senior agent Chenelle Moothedom puts it:

“Owners are often blindsided because they’re valuing the building, and the market’s valuing the income.”

That’s not a reason to ignore the building.

It’s a reason to understand what your likely buyer is actually buying.

Before you extend the lease, work out who your buyer is

You’ll often hear that extending the lease is the best thing a commercial owner can do before selling.

Sometimes it is.

Sometimes it could shrink your buyer pool.

The right move depends on who is most likely to buy the property.

Likely buyer	What they may value most
Property investor	Secure tenant, suitable lease term, sustainable rent, clear reviews and documented outgoings
Owner-occupier	Vacant possession, practical layout, access, parking, zoning and building condition
Developer or land buyer	Site area, planning controls, access, approvals and highest-and-best-use potential

If your likely buyer is an investor, a sound lease with a reliable tenant can materially improve the property’s appeal.

If your likely buyer is an owner-occupier, locking in a fresh five-year lease could rule them out completely.

This decision is worth making before you renegotiate a lease—not after.

What can you improve before selling?

There’s no single checklist that suits every commercial property, but these are the areas most worth examining.

If you’re selling as an investment

Consider whether you can:

resolve an imminent lease expiry
formalise any undocumented lease changes
clarify rent-review terms
bring outgoings records up to date
address arrears or ongoing disputes
organise a clear rent and payment history
deal with maintenance issues likely to worry a buyer
present evidence that the current rent is sustainable

For an investment property, removing doubt can be more valuable than adding polish.

If you’re targeting owner-occupiers

Focus on:

whether vacant possession can be offered
the practical usability of the space
access, parking and loading
building condition
zoning and permitted uses
obvious compliance or maintenance issues
presenting the premises cleanly and clearly

An owner-occupier may care far more about whether the property suits their business than what it currently earns.

If there may be development potential

Gather reliable information about:

zoning
planning controls
easements
site dimensions
access
services
existing approvals
contamination or environmental constraints
previous planning advice

Be careful not to market development potential as a certainty unless it’s properly supported.

“Subject to council approval” is doing important work there.

How to sanity-check your own commercial property value

You won’t replace a Certified Practising Valuer with a calculator.

You can get a useful starting range and understand what’s driving it.

Step 1: Identify the likely buyer and valuation approach

Is this most likely to sell as:

a leased investment
a vacant or owner-occupied property
a development or land opportunity?

Don’t automatically use the income method if the likely buyer won’t be buying the income.

Step 2: Work out the appropriate income

For an investment property, calculate the net annual income after the expenses the owner genuinely bears.

Then ask whether the current rent is broadly in line with market rent.

If it isn’t, your calculation may need more than a simple division.

Step 3: Find genuinely comparable evidence

Look for recent sales of properties with similar:

location
use
size
condition
lease status
tenant risk
buyer market

A sale isn’t useful just because it happened nearby.

Step 4: Run more than one check

For a leased investment, you might:

divide the sustainable net income by a market-supported cap rate
compare the result with recent sale prices per square metre
test what happens if the cap rate moves slightly higher or lower

For a vacant property, recent comparable sales may be the more useful starting point.

If your methods point to roughly the same range, you can have more confidence in the estimate.

If they’re miles apart, don’t average them and hope for the best. There’s probably something in the evidence or assumptions that needs another look.

What information should you gather?

Before asking a valuer or agent for an opinion—or attempting your own estimate—collect as much of this as you can:

the full lease and any variations
lease commencement and expiry dates
option periods
current rent
rent-review dates and methods
outgoings and who pays each one
details of incentives or rent-free periods
payment history and any arrears
floor area and site area
zoning and permitted use
plans, approvals and relevant certificates
details of major works or known repairs
recent comparable sales
evidence of current market rent
tenancy schedule for multi-tenanted properties

Clean information makes the job easier.

Messy or missing information tends to produce more questions, more assumptions and less certainty.

When do you need a formal valuation?

A DIY estimate or agent appraisal may be enough when you’re simply getting oriented or considering a possible sale.

A formal valuation is the sensible choice when the number needs to be relied on for:

finance or refinancing
legal proceedings
tax or accounting purposes
an estate
a relationship or partnership separation
a dispute between parties
a transaction where the value is likely to be heavily contested

For lending purposes, check the lender’s requirements before commissioning your own report. Banks may require the valuation to be completed by someone from their own panel or under a particular set of instructions.

Valuation fees vary according to the property, location, complexity and purpose of the report. Ask for a written quote and confirm that the proposed report will be suitable for what you need it for.

Selling after you’ve worked out the value

Understanding the value is only one part of selling a commercial property.

You still need to decide:

who the likely buyer is
whether the property should be sold leased or vacant
how it will be marketed
what information buyers need
how inspections and enquiries will be handled
how offers will be assessed
who will prepare and manage the legal documents

Plenty of commercial owners choose to handle the sale themselves, particularly when the property and likely buyer are fairly straightforward.

Our guide to selling commercial property without an agent explains the process in more detail.

PropertyNow also lets owners advertise and sell commercial property privately with licensed agent support, for a set fee rather than a percentage-based commission.

And if you’re leasing rather than selling, see our guide to renting out commercial property privately.

The bottom line

Commercial property valuation isn’t one formula applied to every property.

For a leased investment, income, lease security and the market cap rate may lead the calculation. For a vacant or owner-occupied property, comparable sales and usability may matter more. For a development site, the land and its future potential could outweigh the income from what’s currently sitting on it.

The cap-rate formula is still well worth understanding:

Value = net operating income ÷ capitalisation rate

Just remember that the hard part isn’t the division.

It’s deciding which income is sustainable, which sales are genuinely comparable, what risks a buyer will see and which valuation method suits the property in the first place.

Work out a sensible range yourself to get oriented. Bring in a qualified valuer when the figure needs to stand up.

Either way, you’ll be making decisions based on evidence rather than guesswork—which is exactly where you want to be before you sell, lease or refinance.

Frequently asked questions

How is commercial property valued in Australia?

Commercial property may be valued using an income approach, direct comparison with recent sales, a cost approach or discounted cash flow analysis.

For a leased investment property, valuers often consider the sustainable net income and divide it by a market-supported capitalisation rate, then cross-check the result against comparable sales.

The most appropriate method depends on the property, its use, its lease status and the purpose of the valuation.

What is a commercial property cap rate?

The cap rate is the annual return buyers are accepting for comparable commercial investments, expressed as a percentage.

It reflects the market’s view of the property’s income and risk.

A lower cap rate produces a higher value, while a higher cap rate produces a lower value. There is no single “good” cap rate for all commercial property. It needs to be supported by recent, genuinely comparable sales.

Can I value my own commercial property?

You can calculate a useful ballpark, particularly for a straightforward leased investment.

Start by identifying the likely buyer, calculating the sustainable net income, examining comparable recent sales and running both an income and price-per-square-metre check where appropriate.

For finance, legal, tax or dispute purposes, use a qualified independent valuer.

What is the difference between passing rent and market rent?

Passing rent is the rent currently payable under the lease.

Market rent is what the property could reasonably be expected to rent for in the current market.

The two may differ. A long lease at below-market rent may restrict the property’s income, while an above-market rent may not be sustainable after the lease ends. Valuers consider both.

Does a longer commercial lease increase the property’s value?

It can, particularly when the property is being sold to an investor and the lease is on sound terms with a reliable tenant.

But a longer lease isn’t always better. If the likely buyer is an owner-occupier, a newly extended lease may make the property less attractive because vacant possession isn’t available.

Work out who your buyer is before changing the lease.

How can I improve the value before selling?

Start by reducing uncertainty.

For an investment property, that may mean dealing with an approaching lease expiry, documenting outgoings, resolving arrears and presenting a clear payment history.

For an owner-occupier property, usability, vacant possession, zoning, access and building condition may matter more.

The right improvements depend on the likely buyer.

Do banks value commercial property differently?

Where a buyer needs finance, the lender will usually require a valuation that meets its own requirements.

The lender considers the property, market evidence, lease, income and risks when deciding how much it is prepared to lend. A cautious lender valuation can limit what a buyer is able to pay, even where the buyer personally believes the property is worth more.

What is the difference between a valuation and an agent appraisal?

A formal valuation is an independent written assessment prepared by a qualified valuer for a stated purpose.

An agent appraisal is an estimate of the likely sale price, usually provided free by an agent who may be seeking the listing.

An appraisal is useful market evidence, but it isn’t a substitute for a formal valuation where an independent figure is required.

Selling your commercial property? Keep the commission.

Once you know what it’s worth, you don’t need to hand an agent a slice of the sale to list it. PropertyNow lets you advertise and sell your commercial property privately on the major portals with licensed agent support — for one set fee.

Sell commercial privately