What a Commercial Valuation Actually Tests

A commercial valuation is not a price check. It is a test of how durable the income is, and each test moves the number a lender will lend against.

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What a Commercial Valuation Actually Tests

A commercial valuation is a structured test of how durable a property's income is, reported as a value a lender can lend against. Each test the valuer applies moves that number.

Published 21 August 2026 / Reviewed 21 August 2026 / Nick Lim, FBAA Accredited Finance Broker / Credit Representative No. 576702 of LMG Broker Services Pty Ltd, ACN 632 405 504, Australian Credit Licence No. 517192 / General information only

Quick Answer

A commercial valuation tests whether the income a property produces is durable enough to support debt, and reports a value a lender can lend against. The valuer works through three main approaches, capitalisation of net income, direct comparison and summation, with a discounted cash flow used as a check on larger assets. Each one is described in how commercial property loans work, and the resulting figure is what sets the limit on a commercial property loan.

Also called: income capitalisation approach (capitalisation of net income), comparable sales approach (direct comparison approach).

What is a commercial valuation actually testing?

A commercial valuation tests the income a property produces and how durable that income is, expressed as a value under professional standards. It is not an opinion on what the building is worth to you. The building is the container. The income is the thing being measured.

That is the single biggest difference between a commercial and a residential report. A residential valuation is largely an exercise in comparison: three similar houses sold nearby, adjust for land size and condition, land on a figure. A commercial valuation starts from the lease, works out what the property earns after the costs the owner cannot recover, and only then asks what an investor would pay for that earning stream. Two identical warehouses in the same street can be valued materially differently because one has a tenant with years left to run and the other has a month.

From the underwriter's seat, this is the document that converts a building into a lending limit. Nothing else in the file does that job. Serviceability and the borrower's own trading position are assessed separately, and you can read how those interact on the property lending hub, but the valuation is what caps the number before any of that is considered.

How is a commercial property valued? The three methods a valuer uses

A commercial property is valued by applying one primary method and cross checking it against at least one other. The three that do the work are capitalisation of net income, direct comparison and summation, with a discounted cash flow appearing on larger or multi tenanted assets as a secondary check. Which one leads depends on what evidence exists for that property type.

What each valuation method tests, and when a lender relies on it
Method What it measures When it is used What makes it move
Capitalisation of net income The net income the property produces, converted into a capital value Leased investment property with an established income stream The rent the valuer adopts, the outgoings the owner cannot recover, and the capitalisation rate applied
Direct comparison What comparable properties have sold for, adjusted for the differences Owner occupied premises, strata units and smaller assets with plentiful sales evidence The recency and quality of the comparable sales, and the adjustments for size, access, clearance and condition
Summation or cost Land value plus the depreciated cost of the improvements Specialised buildings with thin sales evidence, usually as a cross check rather than the lead Land rates in the locality, build cost assumptions, and the depreciation allowed for age and obsolescence
Discounted cash flow The present value of the income over a holding period, including reversions and capital expenditure Larger or multi tenanted assets, generally as a secondary check on the capitalisation figure The rental growth, vacancy, incentive and discount rate assumptions the valuer adopts

A capitalisation rate is the percentage used to convert one year of net income into a capital value. It is expressed as a percentage, and small movements in it change the assessed value materially, illustrative only. That is why the rate the valuer adopts, and the evidence behind it, is usually the most consequential single line in the report. The professional definitions sitting behind all of these approaches, including market value and highest and best use, are published by the Australian Property Institute, which sets the standards Australian valuers work to.

Why the bank valuation is not the price you agreed

The price you agreed is evidence, not the answer. It is one transaction between two parties with their own reasons, and the valuer weighs it against everything else in the market. Where the two differ, lenders typically lend against the lower of the contract price and the valuation, which is a policy position and varies by lender. A funder taking a subordinate position runs the same test with less room to move, which is part of what a second mortgage lender checks before it commits. The mechanics of a shortfall are covered in detail in the piece on a commercial property valuation coming in under contract.

What is passing rent, and why does the valuer care about market rent instead?

Passing rent is the rent actually payable under the lease today, and the valuer looks past it to market rent because passing rent stops at expiry while market rent is what the space earns after that. Market rent is what the same space would let for if it were offered to the market tomorrow. Passing rent tells the valuer what is coming in now. Market rent tells them what the property supports once the current lease ends.

When passing rent sits above market rent, the property is over rented. The income looks strong on paper, but the valuer knows that on expiry the space re-lets at the lower figure, so they will often capitalise something closer to market rent and treat the excess as temporary. When passing rent sits below market rent, the property is under rented, and there is genuine value in the reversion, though a cautious valuer will still discount for the time and cost of getting there.

The lease, in other words, is the income stream being tested. Every clause that touches money changes the number: who pays land tax and insurance, whether outgoings are fully recoverable, whether the reviews are fixed or tied to an index, and whether there is a market review before expiry. A single non recoverable outgoing dropped into the net income calculation moves the value by a multiple of itself, because it is being capitalised. If you are weighing a purchase and want to know how a valuer is likely to read the lease before you commit to a price, start a conversation before the contract is signed rather than after.

How do lease incentives change the number?

Lease incentives change the number because the rent on the face of the lease is not the rent the landlord actually receives. An incentive is what was given up to get the tenant in: a rent free period, a fitout contribution, a rent abatement, or a combination. The face rent stays high in the document. The economics are lower.

Valuers deal with this through incentive amortisation, which spreads the value of the incentive across the lease term to produce an effective rent. It is the effective rent, not the face rent, that gets capitalised. Where an incentive has been generous, the gap between the two figures can be the difference between a valuation that supports the purchase and one that does not, and the borrower is usually the last person in the transaction to learn the distinction exists.

There is a second signal in it. A large incentive tells the valuer something about how hard that space was to let, which feeds straight back into the capitalisation rate and the vacancy assumptions. A lower effective rent produces a lower value, and a lower value at the same loan to value ratio produces a smaller loan, which is where the arithmetic lands on the borrower.

What is WALE, and how does a short lease tail move what you can borrow?

WALE is the weighted average lease expiry, the average time remaining across the leases in a property weighted by the income each tenancy contributes, and a short lease tail lowers what you can borrow because a lender discounts income it cannot see contracted past the early years of the loan. It answers one question: how long before this income has to be re-let. A long WALE means the income is contracted well into the future. A short WALE means the property is close to an income cliff, whatever the current rent says.

The valuer prices that risk directly. A short tail attracts a vacancy and reletting allowance, an explicit deduction for the downtime, incentives and agent costs of finding the next tenant, and it usually attracts a softer capitalisation rate as well. Both push the value down. It also widens the gap between market value and forced sale value, which is the figure a lender looks at when it is thinking about the downside rather than the base case.

Two identical units, two different answers Two adjoining industrial units in the same estate, same size, same clearance, same condition. One is leased to an established occupier with several years still to run and fixed annual reviews. The other has a tenant on a holding over arrangement, month to month, after the lease expired. The rent on both is close to identical today. The valuer will treat them as different assets, because only one of them has contracted income, and the lender will follow the valuer. The same logic drives the assessment on any industrial or warehouse property purchase, which is why the lease is the first document a valuer asks for and the last one a buyer thinks about.

What is highest and best use, and when does it lift or cap the value?

Highest and best use is the use of a site that is physically possible, legally permissible and financially feasible, and it lifts the value where that use is worth more than the current one and caps it where the current use is already the best the site can support. It is the use the valuer values the property for, whether or not that is what is happening on the site today. It is a formal test with three limbs, and a use has to pass all three to count.

It lifts the value when the site is worth more for something other than its current use. An older single storey building on a well located parcel with zoning that permits more intensive development will often be valued on the land, with the improvements treated as having little or no added value. It caps the value in the opposite case: a purpose built facility that suits one occupier perfectly, on land that cannot be repurposed, has a narrow buyer pool, and the valuer will say so. Where a business is trading from the premises and the value is bound up with the operation itself, the read changes again, which is the territory covered in going concern valuation explained.

From the underwriter's seat, highest and best use is also a resale question. A lender is not buying the building, it is asking who else would, and how quickly, if it ever had to be sold. That question sits underneath every commercial property loan and it is answered in the valuation long before it is answered in the credit paper.

A commercial valuation is a sequence of tests, not a price check. The valuer establishes what the property earns, decides how much of that income is durable, adjusts for the incentives and the lease tail that sit behind it, and then applies a rate to convert it into a value. Passing rent, market rent, incentive amortisation, WALE and highest and best use are not jargon, they are the five levers that move the number, and each one is visible in the lease before the valuer is ever instructed. Where the valuation and the contract price differ, the lower figure is generally the one the loan is sized against.

Key takeaway: read the leases before you agree a price, because the valuer will, and their reading is the one the lender uses.

Frequently Asked Questions

Getting a valuation on a commercial property for finance purposes usually means the lender instructs a valuer from its own panel, rather than you commissioning one yourself. You can order an independent valuation for your own planning, but most lenders will not rely on a report they did not instruct, because the valuer's duty of care has to run to them. If the valuation is being ordered as part of a purchase or refinance, the sequence and who pays are set out in how commercial property loans work.

Valuing a commercial property in Australia means applying one primary method and cross checking it with a second. Capitalisation of net income is the usual primary method for a leased asset, direct comparison is usual for owner occupied premises and smaller strata stock, and summation or a discounted cash flow is generally used as a check. Whichever method leads, the valuer is testing the income and the lease behind it, which is why the same building can support a different commercial property loan depending on who occupies it.

A valuation is not the same as an agent's appraisal, and a lender will not accept one in place of the other. An appraisal is a marketing opinion of what a property might achieve, prepared by an agent who is not liable for the figure. A valuation is a formal report prepared by a qualified valuer under professional standards, addressed to the lender, and it will usually also state a forced sale value, which no appraisal does.

The documents needed for a commercial property valuation are the ones that evidence the income and the tenure. That typically means the contract of sale, every lease and any variations or side letters, a tenancy schedule showing the rent and expiry for each tenancy, the outgoings statement, the title and plan, and any recent building or environmental reports. Missing leases are the most common cause of delay, and they hold up the serviceability assessment as well, because the assessed rent feeds it.

If the valuation comes in under the contract price, lenders typically lend against the lower of the contract price and the valuation, which is a policy position and varies by lender, so the gap becomes cash you have to find. In an off market or fast moving purchase that gap is the single most common reason a settlement moves, and the options are to renegotiate, add security, or fund the shortfall another way. The mechanics of a shortfall, including what a review of the valuation can and cannot achieve, are covered in the piece on a commercial property valuation coming in under contract.

Nick Lim

Nick Lim

Broker, Switchboard Finance

0412 843 260 / hello@switchboardfinance.com.au

FBAA FBAA Accredited
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