Rent valuation calculator

How to work out what rent to charge

Setting the right rent is a four-step process, and the first step does most of the work.

Start with comparables. Search Rightmove and Zoopla for properties of the same size and type within a short distance of yours that are currently advertised to let, and note their asking rents. Currently advertised properties matter more than past listings, because they show what the market is asking now. Five or six close matches give you a reliable range.

Adjust for the differences. Your property is not identical to the comparables, so move up or down the range for the things tenants pay for: condition and a modern kitchen or bathroom, furnishing, a higher EPC rating and so lower bills, parking, a garden, and whether you will accept pets. A property in better condition than the comparables can sit at the top of the range; a tired one sits at the bottom.

Cross-check against the yield. Work out what rent the property would need to achieve a sensible gross yield, using the formula below, and compare it with the comparables figure. If the two are close, you can price with confidence. If they diverge, the comparables win for the asking rent, because the market decides what a tenant will pay, while the yield tells you whether the property works as an investment at that rent.

Sense-check with an agent. Even if you intend to self-manage, two or three local letting agents will give you a view on the figure for free, because they price comparable properties every week. Treat it as a second opinion on your own research, not a replacement for it.

The yield cross-check

The cross-check turns a target return into an implied rent:

Implied monthly rent = property value × gross yield ÷ 12

So a £250,000 property at a 5.8 per cent gross yield would need to let for about £1,208 a month. You can model the gross and net figure on a specific property with our rental yield calculator, and the full return on the cash you invest with the buy-to-let investment calculator.

A worked example

Suppose four similar two-bedroom flats near you are advertised at £1,200, £1,250, £1,275 and £1,300 a month. Their average is £1,256, which is your starting point. If your flat is in better condition than most, with parking and a new kitchen, you might price toward the top, around £1,300; if it is tired or lacks parking, nearer £1,200.

To cross-check, that £250,000 flat at a 5.8 per cent gross yield would need about £1,208 a month. The comparables and the yield point to a similar figure, which is a good sign that the rent is both achievable and worthwhile. From working with self-managing landlords across the UK, the figure that holds up is almost always the one supported by current comparables rather than the one a landlord hopes for, and pricing a few pounds under the top of the range often lets faster and avoids a void that wipes out the extra rent many times over.

What affects how much rent you can charge

Location does most of it. The same property earns very different rents in different towns, and even between streets, depending on transport links, schools, and how strong local rental demand is. Beyond location, the levers you control are condition, whether the property is furnished, the EPC rating, parking, outdoor space, and your pet policy. Furnished properties usually command a little more and suit professionals and students; unfurnished often suits families who stay longer. As context, average UK rents were around £1,300 a month in 2025 according to the HomeLet Rental Index, and well above that in London and the South East, but a national average is a poor guide to a specific property, which is why local comparables matter more than any headline figure. Demand also varies by region, and our guide to the best places to buy UK rental property sets out where it is strongest.

Setting rent versus increasing it

Setting the rent on a new letting is different from raising it on an existing tenant, and the rules changed in 2026. When you first advertise a property, you price it to the market, but since the Renters' Rights Act came into force on 1 May 2026 you must advertise a fixed asking rent and cannot invite or accept offers above it, so the figure you set is the figure you let at. Raising the rent on a sitting tenant is more constrained: it can be done once a year, to the market rate, by serving the correct notice, and the tenant can challenge an excessive increase at tribunal. The figure this page helps you set is the initial market rent; the increase rules are a separate question covered in our Renters' Rights guidance.

Once the rent is agreed, the job shifts from setting it to collecting it. August tracks rent automatically through open banking, reconciles each payment against the tenancy, and flags arrears the moment a payment is late, so the income you priced is the income you can see. You can track rent with August from the first tenancy.

Frequently asked questions

How much rent can I charge?

As much as comparable properties near you are achieving, adjusted for how yours compares on condition, furnishing, EPC, parking and similar factors. There is no fixed rate; the market sets it. Research five or six similar properties currently advertised to let nearby, take the range, and position your property within it. A yield cross-check, the property value multiplied by a target gross yield and divided by twelve, confirms whether that rent makes sense as an investment.

How do I work out the rental value of my property?

Compare it against similar nearby properties currently advertised to let, rather than relying on a national average or an automated estimate. Take the asking rents of five or six close matches, adjust up or down for how your property differs, and cross-check the figure against the rent needed for a sensible yield. A local letting agent will give a second opinion for free.

Can I charge whatever rent I want?

For a new letting you set the asking rent yourself, guided by the market, but since the Renters' Rights Act came into force on 1 May 2026 you must advertise a fixed figure and cannot accept offers above it. Raising the rent on an existing tenant is limited to once a year, to the market rate, by formal notice, and is challengeable at tribunal.

What is a good rent compared to the property's value?

A common benchmark is the gross yield, the annual rent as a percentage of the property's value. The UK average gross yield is around 5.8 per cent, higher in the North East at close to 7.9 per cent and lower in London at around 5.1 per cent, according to Zoopla. A property let well below the local yield may be underpriced; one let well above it may struggle to find a tenant. You can start for free with August to track the rent once it is set.

Disclaimer

Figures are estimates only for informational purposes and do not account for all potential costs. Check your numbers with a qualified professional before making investment decisions.