Commercial property valuation runs on genuinely different logic from residential, where value is driven mainly by comparable sale prices. This guide covers how yield and value are actually connected, the three distinct yield measures valuers and investors use, and the valuation methods behind the number on a commercial agent's particulars.
Figures below reflect published 2026 valuation and agency guidance, current to mid-2026. This is general education, not a substitute for a RICS-qualified valuation specific to any property you're considering.
1. The inverse relationship between yield and value
Commercial property value is most commonly calculated by capitalising rental income at an appropriate yield: value equals rent divided by yield. This produces a genuinely striking effect, a lower yield produces a materially higher value for the exact same rental income.
£120,000 of annual rent capitalised at a 5% yield produces a value of £2,400,000. The same £120,000 of rent capitalised at an 8% yield produces a value of just £1,500,000, a difference of £900,000 purely from the yield applied, with the underlying income stream completely unchanged. A lower yield reflects a valuer's view of lower risk and more secure income (prime property); a higher yield reflects greater perceived risk (secondary or tertiary property).
2. Three yield measures, and why they matter
For a property let at full current market rent, all three yields are typically identical, since there's no gap between passing rent and market rent to blend across. The distinction becomes genuinely important specifically where a lease is old enough that passing rent has fallen behind, or risen ahead of, current market levels.
3. Under-rented versus over-rented
A property let on an older lease at a below-market rent is described as under-rented: its initial yield looks low relative to its value, but its reversionary yield, based on the higher rent achievable once the lease reviews or renews, is meaningfully higher. This is genuinely good news for a buyer, since it points to rental growth once the reversion happens, not overpricing. The opposite, an over-rented property where the current passing rent actually exceeds current market rent, carries the reverse risk: income may fall once the lease reverts to market level. Reading only the initial yield, without checking whether a property is under-rented or over-rented and understanding the lease event timeline, is a common and costly mistake.
4. The three valuation methods
RICS-qualified valuers use three primary approaches, often cross-checking with more than one for complex properties:
- The investment method, capitalising rental income (current or estimated) at an appropriate yield, the standard approach for income-producing property let to tenants.
- The comparable method, direct comparison with recent transactions of genuinely similar properties, more commonly used for owner-occupied property without an income stream to capitalise.
- The discounted cash flow method, modelling projected future income and costs over time and discounting them back to a present value, used for more complex properties where a simple capitalisation doesn't adequately capture future changes.
5. Typical yield bands by property quality
| Property type and quality | Typical yield range |
|---|---|
| Prime high street retail, strong location, well-let | 4.5% to 5.5% |
| Secondary industrial, less prime estate | 7% to 9% |
These ranges shift with market conditions and should be treated as a general framework rather than a fixed benchmark for any specific property; a qualified valuer will apply a yield derived from genuinely comparable recent transactions, not a generic published range.
6. The trap of applying residential logic
Investors and developers moving from residential to commercial property are frequently surprised by valuations, often because they've unconsciously applied residential comparable-sale logic to an asset that's actually valued on its income and yield. Purchaser's costs also differ materially: Stamp Duty Land Tax, legal fees, and agent's fees typically run to 6% to 7% of price for larger commercial assets, meaningfully higher than the equivalent costs on a typical residential purchase, and a genuine factor to build into any return calculation from the outset.
7. Frequently asked questions
What's the difference between initial yield and reversionary yield?
Initial yield, sometimes called running yield, is the property's current passing rent divided by its capital value. Reversionary yield uses the estimated rental value the property could achieve at market rates once the current lease ends or is reviewed, divided by the current value, making it forward-looking rather than a snapshot of today's income.
Why does a low commercial yield mean a higher price for the same rent?
Yield and value move inversely because value is calculated by capitalising rent at the yield: value equals rent divided by yield. The same £120,000 of annual rent capitalised at a 5% yield produces a value of £2.4 million, while at an 8% yield it produces only £1.5 million, a £900,000 difference from an identical income stream, purely because a lower yield reflects a valuer's view of lower risk and more secure income.
Does a low initial yield always mean a property is expensive or overpriced?
Not necessarily. A low initial yield can reflect an under-rented property, where the current lease is at an old, below-market rent due for a significant uplift at the next rent review or renewal, meaning the reversionary yield is considerably higher than the initial yield. Reading initial yield in isolation, without checking whether a property is under-rented or over-rented, is a common and costly mistake.
What valuation methods do RICS valuers actually use for commercial property?
Three primary methods: the investment method, capitalising rental income at an appropriate yield; the comparable method, direct comparison with similar recent transactions; and the discounted cash flow method, modelling future income streams and discounting them to present value. For complex properties, a valuer may use two or more methods together to cross-check their conclusion.
Continue your research
About the author
✓ Editorially reviewed — all Poqet guides are checked for factual accuracy before publication and updated when UK rates or legislation change. Editorial Policy