How is comparable evidence used to value rental property?
Comparable evidence is the record of similar properties that have recently sold or let nearby. Valuers and buyers use it to set a price. For rental portfolios there are two kinds of comparables: vacant possession sale prices for each house, and investment comparables based on rent and yield.
Read more in our guide: How portfolio valuation works
Sources of comparable evidence
| Source | What it shows |
|---|---|
| HM Land Registry price paid data | Completed sale prices, usually with a lag of a few months |
| Agents' sold and agreed data | More recent, but asking or agreed prices may change |
| Rental listings and lettings | Achievable market rents |
| Investment sales | Yields paid for tenanted stock and portfolios |
| EPC register | Floor areas to compare price per square foot |
How comparables are chosen
A good comparable is close by, recent, and similar in type, size, condition and tenure. Valuers adjust for differences: an extra bedroom, a better street, a modernised kitchen. Price per square foot, using floor areas from the EPC register, is a useful cross-check.
Vacant possession and investment value
A house sold empty to an owner-occupier is valued against nearby home sales. The same house sold with a tenant to an investor is valued on its rent and the yield investors expect. The two figures can differ, and the gap is usually wider for flats and HMOs. See vacant possession and tenanted sale.
Comparables for whole portfolios
Portfolio sales are less often published, so investor evidence comes from agents and consultants who handle them. A buyer taking 20 houses at once usually expects a discount to the sum of individual values, in return for speed, one transaction and no void or resale risk. How big that discount is depends on quality, location and the number of willing buyers.
Using comparables when you sell
Ask your agent or consultant to show the comparables behind any figure. Be wary of valuations based on asking prices only. A desktop market appraisal backed by evidence gives you a realistic starting point.
Official Sources and Further Reading
General information for landlords in England, checked against official sources in October 2026. It is not tax, legal or financial advice: speak to a qualified accountant or solicitor about your own circumstances.
Frequently Asked Questions
Comparable evidence is the record of similar properties that have recently sold or let nearby. Valuers and buyers use it to set a price. For rental portfolios there are two kinds of comparables: vacant possession sale prices for each house, and investment comparables based on rent and yield.
Ideally within the last six months. In a moving market, older sales need adjusting for the change in prices.
Sales appear after registration, which can take weeks or months after completion.
Not always. Well let, compliant portfolios in strong areas can attract competitive bids close to individual values.
Thinking About Selling Your Portfolio?
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