A cap rate is the number the market uses to turn a commercial property’s income into a value, and for a developer it is often the single input that decides whether an income-producing project is worth building. The formula is simple: value equals net operating income (NOI) divided by the cap rate. A property throwing off $1 million a year of net operating income (NOI) is worth $20 million at a 5 per cent cap rate and $14.3 million at 7 per cent. That is the same building and the same rent, worth nearly $6 million less, purely because the market repriced the cap rate. On a build-to-hold deal, that swing can be larger than your entire construction budget, which is why the cap rate deserves as much attention in a feasibility as build cost or land price.
This guide is written for the developer working out whether a commercial, mixed-use, or build-to-rent (BTR) project stacks up, not the passive investor buying a completed asset. It covers what a cap rate is, how it converts income into value, what goes into net operating income (NOI), the difference between a cap rate and the various yields you will hear quoted, how the cap rate relates to a discount rate and an internal rate of return (IRR), where Australian cap rates currently sit by sector, and the one calculation that matters most to a developer: the spread between your yield on cost and the market cap rate. Every figure here is hedged and current as at July 2026. Cap rates move with the cash rate, capital flows and sentiment, so treat each number as a prompt to check the latest market evidence, not a fixed rule.
What is a cap rate (capitalisation rate)?
A cap rate, short for capitalisation rate, is a property’s annual net operating income (NOI) expressed as a percentage of its value or price. Rearrange that and it becomes a valuation tool: value equals net operating income (NOI) divided by the cap rate. J.P. Morgan describes the cap rate as the annual net operating income divided by the property’s value, an assessment of the yield of a property over one year. If a property is valued at $14 million and produces $600,000 of net operating income (NOI), the cap rate is about 4.3 per cent.
The cap rate is best understood as the market’s price on income. It is not a return you are promised and it is not a measure of profit. It is the rate at which buyers are currently willing to convert a dollar of stabilised income into capital value for a given type of asset, in a given location, at a given point in the cycle. When people say an asset “sold on a 6 per cent cap”, they mean the sale price implied that the first year’s net operating income (NOI) was 6 per cent of the price.
How do you calculate a cap rate?
You calculate a cap rate by dividing the annual net operating income (NOI) by the property value or purchase price, then multiplying by 100. A small industrial facility producing $780,000 of net operating income (NOI) that sells for $13 million transacted on a cap rate of $780,000 divided by $13 million, which is 6.0 per cent. Run the same formula the other way and it prices a deal: if comparable assets are trading at 6.0 per cent and your building will produce $780,000 of stabilised net operating income (NOI), the implied value is $780,000 divided by 0.06, or $13 million.
The number is only as good as the two inputs. The net operating income (NOI) has to be sustainable rather than inflated by short-term incentives, and the cap rate has to come from genuine like-for-like sales evidence. Comparing a cap rate built on projected income against one built on actual passing income is one of the fastest ways to misprice a deal.
Is a lower or a higher cap rate better?
It depends on whether you are buying or selling, because the cap rate moves inversely to value. A lower cap rate means a higher price for the same income, so a buyer pays more and a seller receives more. A higher cap rate means a lower price for the same income. Lower cap rates generally signal lower perceived risk, stronger demand, or expected income growth, which is why prime assets in tight markets trade on the lowest cap rates. Higher cap rates generally signal higher risk or weaker demand, which is why secondary assets and softer sectors trade on higher cap rates.
For a developer, the direction that matters is the exit. You want to build at a healthy yield on cost and sell or refinance against a lower market cap rate, because the gap between the two is where the value is created. More on that below.
What is net operating income (NOI), and what goes into it?
Net operating income (NOI) is the annual income a property produces after operating expenses but before financing, tax and capital expenditure. In broad terms it is gross income, made up of base rent plus any recoverable outgoings and other income, less the operating expenses the owner cannot recover from tenants. It deliberately excludes loan interest, income tax, depreciation and one-off capital costs, so that the figure reflects the property’s own earning power rather than how a particular owner financed or taxed it.
The Australian lease structure matters here. Under a net lease, the tenant reimburses outgoings such as council rates, land tax, insurance and building maintenance, so those recoverable outgoings appear as both income and expense and largely wash out of net operating income (NOI). Under a gross lease, the owner carries those costs, so net operating income (NOI) is lower for the same face rent. When modelling an income-producing lot, it is worth building net operating income (NOI) from base rent, additional rent and recoverable outgoings, less lease incentives, which is the same structure a valuer uses, rather than guessing a single net figure.
Face rent versus effective rent: which one feeds the cap rate?
The cap rate should be applied to sustainable effective income, not the headline face rent, because incentives can make the two very different. To win tenants in softer markets, particularly office, landlords offer incentives such as rent-free periods and fit-out contributions. In a weak office market these incentives may typically run from 30 to 40 per cent of the lease value, which means the rent written on the lease (the face rent) overstates what the tenant is really paying (the effective rent). A cap rate applied to an inflated face rent produces an inflated value. Valuers and buyers generally look through to effective rent, and a developer building a feasibility should do the same, because assuming the market will capitalise your face rent when it will only pay for effective rent is a common way an income deal looks better on a spreadsheet than it does at sale.
How does a cap rate convert income into value?
A cap rate converts income into value by dividing the stabilised net operating income (NOI) by the cap rate, and because it is a division, small movements in the rate produce large movements in value. This is the mechanical heart of why the cap rate matters so much to a developer holding or selling an income asset. Hold the income constant and flex only the cap rate, and the value moves like this:
| Stabilised net operating income (NOI) | Cap rate | Implied value |
|---|---|---|
| $1,000,000 | 5.0% | $20,000,000 |
| $1,000,000 | 5.5% | $18,180,000 |
| $1,000,000 | 6.0% | $16,670,000 |
| $1,000,000 | 6.5% | $15,380,000 |
| $1,000,000 | 7.0% | $14,290,000 |
A move of 200 basis points, from 5.0 to 7.0 per cent, cuts the value by more than 28 per cent on identical income. That sensitivity cuts both ways. If the market firms while you are building, the same net operating income (NOI) is worth more on completion. If it softens, your finished asset is worth less even though nothing about the building or its rent has changed. Because the exit cap rate is a market input you do not control, it belongs in every sensitivity table for a build-to-hold or commercial project, tested across a plausible range rather than fixed at today’s rate.
Gross yield, net yield, and the other yields developers hear
Yield and cap rate are closely related but not interchangeable, and the differences trip up developers who compare one to another. In Australian commercial practice, the cap rate is effectively the net initial yield: the first year’s net operating income (NOI) as a percentage of value. Around it sit several other yield terms worth keeping straight.
Gross yield is income before operating expenses divided by value, so it is always higher than the net yield or cap rate for the same asset. Comparing a gross yield to a cap rate makes a deal look sharper than it is. Net yield, or net initial yield, matches the cap rate: income after outgoings over value. Passing yield uses the income actually being paid today, while reversionary yield uses the income the property is expected to produce once rents revert to market at the next review or renewal. Equivalent yield is the single rate that a valuer uses to reconcile current passing income with future reversionary income over the life of the leases. Running yield is simply the yield in a given year as income steps up.
The practical point for a feasibility is to compare like with like. If your comparable evidence is quoted on net initial yields, your own deal has to be priced on the same basis, using net operating income (NOI) rather than gross income, and using sustainable effective rent rather than face rent.
Cap rate versus discount rate versus internal rate of return (IRR): what is the difference?
A cap rate, a discount rate and an internal rate of return (IRR) answer three different questions, and using one where you need another is a common modelling error. The cap rate is a one-year snapshot that prices stabilised income into a value today. A discount rate is the required annual return you apply to a stream of future cash flows to bring them back to a present value in a discounted cash flow (DCF) analysis. An internal rate of return (IRR) is the annualised return that a full set of dated cash flows actually implies, taking timing into account.
The three are linked. A widely used approximation holds that the cap rate is roughly the discount rate minus the expected growth rate of income, so a lower cap rate can reflect either a lower required return or stronger expected rent growth. J.P. Morgan notes that cap rates are forward-looking, point-in-time measures of investors’ return expectations, and that realised returns can differ from them because of rent growth, the economic cycle and property-specific factors. For a developer, the cap rate is the quick market price used to set an exit value, while the discounted cash flow (DCF) and the internal rate of return (IRR) are the fuller tools used to test whether the whole project, with its construction timeline and lease-up, actually delivers the return you need.
What cap rates are commercial properties trading at in Australia?
Australian commercial cap rates in 2025-26 sit broadly in the mid-4 to high-7 per cent range depending on sector and quality, and the direction of travel through 2026 has generally been toward firming as the cash rate settles. These are indicative ranges for prime assets, and secondary stock trades higher. The figures move every quarter, so treat the table below as a starting point and check a current source such as the CBRE Australian cap rate outlook or the Cushman & Wakefield Australian outlook reports before you rely on a number.
| Sector | Indicative prime cap rate (2025-26) | Notes |
|---|---|---|
| Industrial and logistics | around 5.0% to 6.0% | Tightest sector; prime Sydney and Melbourne can trade lower on strong demand and limited supply |
| Build-to-rent (BTR) | around 4.25% to 4.75% | Institutional living sector; among the lowest yields, reflecting long income and rental growth expectations |
| Retail | around 5.75% to 6.5% | Non-discretionary and neighbourhood centres firmer than discretionary; wide spread across sub-types |
| Office | around 6.0% to 7.5%+ | Repriced most since 2022; secondary and regional stock sits higher, reflecting vacancy and incentive risk |
Reported transaction yields have been broadly consistent with these ranges. Data reported by CoreLogic for the second quarter of 2025, compiled in an industry cap rate guide, placed industrial around 6.1 per cent, retail around 5.7 per cent and office around 5.2 per cent on a national average basis, though averages blend prime and secondary and can sit inside the prime ranges above. Office has repriced the most since 2022 as hybrid work lifted vacancy and incentives, which is why it now carries the widest spread between prime and secondary.
Why are build-to-rent (BTR) yields so tight?
Build-to-rent (BTR) trades on some of the lowest cap rates in the market because institutional buyers are pricing long, growing residential income streams rather than a single tenant’s lease. Stabilised build-to-rent (BTR) assets have been pricing in roughly the 4.25 to 4.75 per cent range, according to Cushman & Wakefield market analysis, supported by a deep institutional pipeline that Knight Frank tracks in its Australian build-to-rent research and by the capital weight flowing into the living sector. For a developer, a tight exit cap rate is a double-edged input: it lifts the completed value of a build-to-rent (BTR) scheme, but it also means a small softening in the rate can erase a large slice of margin, which is why build-to-rent (BTR) feasibilities live or die on the exit cap rate assumption. The mechanics of these schemes are covered further in the build-to-rent developer guide.
What makes a cap rate move up or down?
A cap rate is set by risk and growth expectations, so it moves with anything that changes how safe or how promising a property’s income looks. Some of those drivers are macro and outside a developer’s control, and some are property-specific and can be shaped by how the scheme is designed and leased.
On the macro side, the cost of capital is the heaviest lever. When the Reserve Bank of Australia (RBA) lifts the cash rate, borrowing costs rise and buyers generally demand a higher cap rate, which pushes values down; when the cash rate falls, cap rates tend to firm and values rise. The Reserve Bank of Australia (RBA) monitors these links between funding costs and commercial property values in its Financial Stability Review. Expected rent growth pulls the other way, because a sector the market believes will grow income, such as industrial or build-to-rent (BTR), commands a lower cap rate as buyers pay for tomorrow’s rent rather than just today’s. The stage of the economic cycle feeds the same sentiment, as J.P. Morgan sets out in its explanation of cap rate drivers.
On the property side, several things move the cap rate that a developer can actually influence. Tenant quality, often called covenant, matters because income from a government department or a listed-company tenant is safer than income from an untested small business, and safer income earns a lower cap rate. Lease length, usually measured as the weighted average lease expiry (WALE), matters because a long weighted average lease expiry (WALE) locks in income and cuts re-letting risk. Location and building quality matter because prime, modern, well-located stock re-lets faster and trades tighter than secondary stock. For a developer, the useful takeaway is that part of your exit cap rate is earned through good design, a strong tenant and a long lease, and the rest is handed to you by the market on the day you sell.
How does a developer actually use a cap rate?
A developer uses a cap rate two ways: to convert a project’s stabilised income into an end value, and to test whether building is worth it through the development spread. The end value is the straightforward part. Take the stabilised net operating income (NOI) the completed project will produce, divide by the market cap rate for that asset, and you have the value that feeds the gross realisation value (GRV) in your feasibility. That capitalised value is the commercial equivalent of the sales revenue on a build-to-sell project.
The test that matters more is the development spread, the gap between your yield on cost and the market cap rate.
What is yield on cost and the development spread?
Yield on cost, also called the development yield, is the stabilised net operating income (NOI) divided by the total development cost, including land. The development spread is the yield on cost minus the market cap rate the finished asset will be valued on. A positive spread is the reward for taking development risk instead of simply buying a completed asset, and a common rule of thumb is that the spread should sit somewhere around 150 to 300 basis points to justify the risk, though the right margin depends on the asset, the market and how much can go wrong along the way.
Work an illustrative example. A small commercial project has a total development cost of $40 million and is expected to produce a stabilised net operating income (NOI) of $2.6 million once leased. The yield on cost is $2.6 million divided by $40 million, or 6.5 per cent. If the market values that completed asset on a 5.5 per cent cap rate, the value on completion is $2.6 million divided by 0.055, or about $47.3 million, and the development spread is 100 basis points. The value created is roughly $7.3 million over the $40 million cost, before finance and tax.
Now flex only the exit cap rate, which is the market input the developer does not control:
| Exit cap rate | Value on completion | Value created over $40m cost |
|---|---|---|
| 5.0% | $52,000,000 | $12,000,000 |
| 5.5% | $47,300,000 | $7,300,000 |
| 6.0% | $43,300,000 | $3,300,000 |
| 6.5% | $40,000,000 | $0 |
At a 6.5 per cent exit cap rate the project breaks even on value alone, because the exit cap has risen to match the yield on cost and the spread has vanished. This is the single most important sensitivity on an income-producing development, and it is why a thin development spread is dangerous even when the headline profit looks acceptable at today’s rate. Because a feasibility model produces both the stabilised net operating income (NOI) and the total development cost, the development yield is straightforward to check, and flexing the exit cap rate alongside cost and rent shows how much of the margin is really exposed to the market rather than to delivery. It is also worth reading the spread next to the project’s development margin, since a healthy margin on cost built on an optimistic exit cap rate is not the safe number it appears to be.
How do cap rates work in New Zealand?
Cap rates work the same way in New Zealand, dividing net operating income (NOI) by value, and New Zealand valuers use the same income-capitalisation approach. The market levels differ. New Zealand prime yields firmed from a cyclical peak of around 6.85 per cent in mid-2024 toward roughly 6.5 per cent by the end of 2025 on average across office, industrial and retail, according to CBRE New Zealand research, with prime industrial sitting tighter, in the region of 5 to 5.6 per cent, and office carrying higher yields and higher vacancy, particularly for secondary stock in Auckland. The CBRE New Zealand market outlook is a useful current reference for a developer pricing a New Zealand exit. The development-spread logic is identical: a New Zealand developer building an income asset is trying to achieve a yield on cost comfortably above the cap rate the completed asset will be valued on, and the same exit-cap-rate risk applies.
Where do cap rates mislead developers?
Cap rates mislead developers most often when the income they are applied to is not sustainable, or when the rate itself is stale. The recurring traps are worth naming, because each one flatters a feasibility.
The first is applying a cap rate to face rent rather than effective rent, which capitalises incentives the market will not pay for and overstates the exit value. The second is carrying a desktop cap rate that is months out of date in a market that has moved, so the feasibility is priced on yesterday’s evidence. The third is a net operating income (NOI) that quietly omits real costs, such as non-recoverable outgoings, letting-up allowances, or the capital expenditure needed to keep the asset leaseable, which inflates both the income and the value. The fourth is confusing a gross yield with a cap rate, comparing numbers built on different bases. The fifth, and the most expensive on a build-to-hold, is treating the exit cap rate as fixed. A cap rate is a forward-looking, point-in-time market view, and J.P. Morgan makes the point that realised outcomes can differ from it as interest rates and the cycle move. The Reserve Bank of Australia’s changes to the cash rate feed through to the cost of capital and, in turn, to the cap rates buyers will accept, so the rate that prices your exit today may not be the rate that prices it on completion.
The bottom line for developers
The cap rate is the market’s price on income, and on an income-producing development it usually matters more than any single line in the build budget. Get the net operating income (NOI) right by using sustainable effective rent rather than face rent, price the exit on genuine like-for-like evidence rather than a stale desktop figure, and judge the deal on the spread between your yield on cost and the market cap rate rather than on the headline value alone. Most importantly, because the exit cap rate is a market input you do not control, sensitise it across a plausible range and see how much of your margin survives a softening. A development that only works at today’s tightest cap rate is a development that depends on the market staying exactly where it is, which is the one thing a cap rate will not promise.
This guide is general information for property developers and does not constitute valuation, financial or investment advice. Cap rates, yields and market ranges are indicative, current as at July 2026, and move constantly, so verify each against current market evidence and a qualified valuer before relying on it for a live deal.