Updated GOV.UK guidance on market rent determinations is mainly written for tenants, but landlords should pay attention too. It sets out more clearly how a tenant can ask the First-tier Tribunal (Property Chamber) to decide the open market rent after receiving a notice of increase, what evidence they may be asked to provide, and how the process can move forward even if the paperwork is still being gathered.
That does not mean every proposed rent increase is suddenly at risk. It does mean landlords who rely on formal rent-rise notices may want to be a bit more careful about timing, evidence and record-keeping. Where a tenant disputes a rise and applies to the tribunal, the rent set by the tribunal could be lower, the same, or even higher than the figure in the notice.
What has changed
The updated guidance now points applicants to a live online service as well as the paper route, and it gives fuller practical detail on what the tribunal expects to see. That includes tenancy documents, the notice of increase, photos and details about the property, evidence of amenities and improvements, and comparable local rental evidence.
One of the clearest points in the guidance is also one landlords should note: tenants are told they must apply before the new rent start date shown on the notice, even if they are still collecting supporting evidence. In other words, a challenge can be lodged early and the paperwork can follow. The guidance also explains the back-and-forth process after that, including the landlord’s opportunity to respond and the tribunal’s power to determine the market rent from the evidence submitted.
The tribunal is also explicit about what it does not do. It decides the market rent. It does not decide whether the landlord’s notice of increase is legally valid. If validity is in dispute, that can still be raised, but landlords should not assume the tribunal will fix a defective notice for them.
Why it matters for landlords
For landlords, the practical issue is not only the amount of rent being proposed. It is whether the increase is properly evidenced and whether the file behind it would stand up if challenged. A figure that feels reasonable in a fast-moving market can look less convincing if there is no clear trail showing similar local rents, recent agreed lettings, or the condition and specification of the property.
This matters even more in the wider climate of rental reform. In our earlier piece on the Renters’ Rights timetable for landlords, we noted that challenges to above-market rent increases are becoming a more visible part of the policy landscape in England. The refreshed tribunal guidance fits that broader picture: more clarity for tenants on process usually means landlords need to be more disciplined on their side as well.
It is also a reminder that evidence from actual agreed lettings tends to carry more weight than looser asking-price comparisons. The guidance says listings from portals can help, but completed rental evidence is stronger. For landlords and agents, that is a useful warning against relying too heavily on optimistic screenshots from a buoyant week in the market.
What landlords may want to check now
First, review how rent increases are being handled in your portfolio. If you use formal notices, check that the dates, figures and tenancy details are accurate and that the route is appropriate for the tenancy involved. If there is any uncertainty on the legal side, it may be worth taking professional advice before serving paperwork rather than after a dispute starts.
Second, keep better evidence packs. That could include current photos, room sizes, details of improvements, information on furnishings or appliances provided, and comparable local rental evidence that is as close as possible in size, location and condition. A landlord does not need to turn every increase into a courtroom bundle, but a thin file is harder to defend than a sensible one.
Third, be realistic about condition. If a property has unresolved repair issues, dated fittings or obvious weaknesses compared with competing local homes, that may affect what the market rent looks like in practice. This is also one reason it may be worth reviewing wider property standards work alongside rent strategy. Our piece on Warm Homes changes and what landlords should check now is relevant here, because energy performance and overall housing quality increasingly shape both compliance risk and the marketability of a let.
Finally, if a challenge does arrive, respond carefully and on time. The updated guidance makes clear that landlords will be given the chance to answer the tenant’s application. A calm, evidence-led response is likely to be more useful than treating the dispute as a simple argument about principle.
A practical takeaway
This is not a headline-grabbing law change, but it is a useful operational update. Clearer guidance and a live online application route may make the market-rent process easier for tenants to use, which in turn means landlords should expect their paperwork and evidence to matter more when a rent increase is disputed.
The sensible response is straightforward: check your notice process, keep better comparable-rent records, document the condition of your properties, and use official guidance when questions arise. Where there is doubt about the legal validity of a notice or the right route for a particular tenancy, landlords should seek professional advice on their own circumstances.
